Pass the Hazardous Materials (HAZMAT) Endorsement Test

Pass the Hazardous Materials (HAZMAT) Endorsement Test

CDL test answers CDL practice tests DMV practice tests CDL-TEST.comThe professional truck driver usually can make around 40K driving for a company on a local route or maybe up to 50K on longer hauls.  But they can double the pay by passing the hazmat endorsement test.

One way to guarantee a big increase in pay for almost any truck driver is to pass the HAZMAT Endorsement Test or the Hazardous Materials Test at the DMVHazardous Materials CDL truck drivers can earn 75K per year.  That equals almost a double increase in pay just by passing the Hazmat Endorsement Test.  Why wait?  Affraid of passing because the hazmat test questions are too difficult?  Don't have time to study?  We have you covered at CDL-TEST.com.

The Hazardous Materials Endorsement (hazmat) is the hardest one to get.

You cannot have felony convictions, DWIs, or problems with employment history related to driving if you hope to pass the background check process.  The DMV is very thorough as they investigate a trucker’s background for Hazmat endorsements.

If you have a clean background and are at least 21 years of age with a clean driving record, and one year of experience driving professionally, then it is a great idea to study for the Hazmat endorsement test.  The Hazmat or Hazardous Materials Test has 30 questions. You need 70% to pass. (70%x 30=21) need to get 21 right. - Can get 9 wrong.

Any drivers of vehicles carrying hazardous materials that requires the vehicle to be classified or placarded for hazardous materials will need to pass the test questions to obtain a hazmat endorsement.

The hazardous materials endorsement (HME) drivers are required to be fingerprinted / federal background checked. The fingerprints are required the first time you get a Hazmat Endorsement (HME) or when you transfer a license from another state.

The USA Patriot Act changed the requirements for issuance of a new, renewal, or transfer HazMat endorsement on a Commercial Driver License.  All new HazMat endorsements are required to complete the required Hazardous Materials Endorsement Application and fingerprint application with the Transportation Security Administration (TSA) data collection vendor and be approved by TSA prior to issuance of a CDL with a HazMat endorsement.

New CDL hazmat endorsement drivers may be issued a CDL without a HazMat endorsement, pending the FBI back-ground investigations. CDL hazmat Drivers renewing or transferring a HazMat endorsement (“H" or "X”) are also required to complete the application and fingerprint FBI card at least 30 days prior to the expiration date to initiate the TSA assessment.

CDL Hazmat Drivers renewing or transferring an “H” or “X” endorsement may receive a 90-day CDL with the HazMat endorsement that will allow them to haul hazardous materials while the required assessment is being completed by holding an “H” or “X” temporary endorsement.

The DMV's letter will explain the CDL Hazardous Materials or HazMat endorsement background check requirements.

CDL-TEST.com has the best CDL practice tests for passing the Hazardous (HME) Hazmat Endorsement Test Questions.  Imagine seeing the test questions and answers prior to taking the CDL test or Hazmat Endorsement test?  You could pass the hazmat easily right?  Of course!  And we are here with email support to answer any questions any time.  Just email us and we answer back within 24 hours.

CDL test answers CDL practice tests DMV practice tests CDL-TEST.comNeed to pass the Air Brakes TEST?  No Problemo - CLICK HERE NOW for information on  passing ANY Air Brakes Test Questions.  Need to pass the DMV Walk Around during the SKILLS TEST at the DMV?  We recommend a combination of both reading the CDL Practice TEST Questions and watching our online Videos "CDL HOW to Videos" Click HEREWebsite Design and Web Programming by Solution39.com

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Pass CDL Air Brakes Test at DMV

Pass CDL Air Brakes Test at DMV!

Air Brakes Test CDL Download Test Questions and Answers DMV practice test

No doubt about it, more people fail on the air brakes section of the Class A CDL than any other part of the test!

Anyone who has taken the Class A CDL tests:  General Knowledge, Combination Vehicles and Air Brakes, knows the Air Brakes test is the hardest of all the CDL Tests at the DMV.  There are two sections of the test where you must master the Air Brakes test questions.  First, is obviously the Air Brakes Endorsement Test itself, and second is the Pre-Trip Inspection or Walk Around portion of the Skills Tests.

Air Brakes CDL TEST DMV practice test questions and answers. CDL-TEST.com download the air brakes test.You must memorize the components of the air brake and the spring brake and be ready to discuss how they are used and why.

What are Spring Brakes?

Spring Breaks allow the trailer to stay parked when the tractor is unhooked from it.  It is important to recognize the difference between these two types of breaks, and how to operate both a spring break and an air brake.  The DMV instructor will expect you to  explain the entire breaking system, and they do not help you in any way.

During the walk around or pre-trip inspection with a DMV instructor it is important to know the minimum air pressure the air brakes must have before the Spring Breaks come on automatically.  There is a safety mechanism designed into the air brake system.  If there is not enough air pressure to stop the truck the spring breaks automatically lock on.  Once the air pressure reaches 20-45 psi the spring breaks will engage. It will be important to know how to test the air breaks prior to each trip with a commercial vehicle.  The easiest test of the air brakes is the ‘tug test’ apply slight pressure to your breaks and tug with the gas in gear to see if the brakes work.

The fastest way to pass the Air Brakes Test at the DMV is to study test questions until you are ready to ace the CDL air brakes test.

Air Brakes Test CDL Download Test Questions and Answers DMV practice test CDL-TEST.com

 

 

 

 

Think about how you like to study because if you prefer we offer all of the DMV CDL practice tests online.

Or if you prefer you can DOWNLOAD an AIR BRAKES TEST as a .pdf (Adobe Reader) file.  This way you can save the CDL practice tests to your computer and print them, or email them, etc.

Another method we offer is watching our online videos on how to operate a commercial vehicle and the air brakes.  By watching these professional truck drivers and instructors explain using Air Brakes, it makes understanding how to pass the air brakes test much easier.

Next we have our unique 7-Sterp Air Brakes Check.  We built this for students in the CDL School Class rooms to easily memorize 7 Steps so they could always pass both the written and the verbal portions of the Class A CDL Air Brakes questions and Walk-Around Skills Test portions of the CDL test.  If you can memorize the 7 Step Air Brake Check then you can pass the CDL Class A air brakes questions.  If you say it exactly or close to it, they will pass you for DMV air brakes knowledge.  You can find the 7 Step Air Brakes Check Here.

We always get asked the same question, "How to Pass an Air Brakes Test at the DMV?"

Everyone must pass the DMV CDL Skills Test - Pre-Trip Inspection, walk-around, Road Trip, if they want a Class A CDL.  The best way to pass is watch our online videos for CDL Skills Tests AND study our CDL practice tests on your own time using our CDL Practice Test Downloads makes printing out the CDL Test questions (air brakes test) easy and convenient for people on the go.

First download the CDL HANDBOOK from the DMV.

Know any images / photos and be ready to discuss all the different air brakes parts names.  Be prepared to name each Air Brake part and describe what it does. We provide free online CDL practice tests for air brakes endorsement tests at CDL-TEST.com so try a FREE CDL Air Brakes test first to see how much you need to learn, and so you know how the website works.

Then sign up as a full member to learn about your state’s local DMV air brakes test questions.  You can complete the FREE CDL practice test as many times as needed.  But do not forget to sign up for the full membership to get over 2,000 DMV practice test questions and it covers the air brakes components thoroughly.

If you would like to learn more about Air Brakes test questions and air brakes components Please SEE the list of air brakes components below:

There are many parts to a semi truck or tractor-trailer air brake system.

It is important to understand all air brakes parts and what they do.  Each name and description must be memorized to pass the CDL Test Air Brakes Endorsement questions.  You must study all parts of the Air Brakes to pass the CDL Walk-Around and the Skills Test at the DMV.  You must study all parts of the Air Brakes to pass the Pre-Trip Inspections at the DMV.

1. Air Brakes - Air Compressor

The air compressor pumps air into the air storage tanks (reservoirs). The air compressor is connected to the engine through gears or a v-belt. The compressor may be air cooled or may be cooled by the engine cooling system. It may have its own oil supply or be lubricated by engine oil. If the compressor has its own oil supply, check the oil level before driving.

2. Air Brakes - Air Compressor Governor

The governor controls when the air compressor will pump air into the air storage tanks. When air tank pressure rises to the "cut-out" level (around 125 pounds per-square-inch or "psi"), the governor stops the compressor from pumping air. When the tank pressure falls to the "cut-in" pressure (around 100 psi), the governor allows the compressor to start pumping again.

3. Air Brakes - Air Storage Tanks

Air storage tanks are used to hold compressed air. The number and size of air tanks varies among vehicles. The tanks will hold enough air to allow the brakes to be used several times, even if the compressor stops working.

4. Air Brakes - Alcohol Evaporator

Some air brake systems have an alcohol evaporator to put alcohol into the air system. This helps to reduce the risk of ice in air brake valves and other parts during cold weather. Ice inside the system can make the brakes stop working.

Check the alcohol container and fill up as necessary, every day during cold weather. Daily air tank drainage is still needed to get rid of water and oil. (Unless the system has automatic drain valves.

5. Air Brakes - Safety Valve

A safety relief valve is installed in the first tank the air compressor pumps air to. The safety valve protects the tank and the rest of the system from too much pressure. The valve is usually set to open at 150 psi. If the safety valve releases air, something is wrong. Have the fault fixed by a mechanic.

6. Air Brakes - Air Tank Drains

This picture shows Air tank with Manual Draining Valve for Air Brakes Test - CDL.

The picture illustrates Air Tanks Drains using the Manual Draining Valve on bottom of the Air Tank.

Compressed air usually has some water and some compressor oil in it, which is bad for the air brake system. For example, the water can freeze in cold weather and cause brake failure. The water and oil tend to collect in the bottom of the air tank. Be sure that you drain the air tanks completely. Each air tank is equipped with a drain valve in the bottom. There are two types:

  • Automatic--the water and oil are automatically expelled. These tanks may be equipped for manual draining as well.
  • Manually operated by turning a quarter turn or by pulling a cable. You must drain the tanks yourself at the end of each day of driving.

Automatic air tanks are available with electric heating devices. This helps prevent freezing of the automatic drain in cold weather.

7. Air Brakes - Air Break Pedal

The brakes are applied by pushing down the brake pedal. Pushing the pedal down harder applies more air pressure. Letting up on the brake pedal reduces the air pressure and releases the brakes. Releasing the brakes lets some compressed air go out of the system, so the air pressure in the tanks is reduced. It must be made up by the air compressor. Pressing and releasing the pedal unnecessarily can let air out faster than the compressor can replace it. If the pressure gets too low, the brakes won't work.

8. Foundation Air Brakes – the drum brake air brake component list.

Pass the Air Brake Test and get a CDL – by memorizing all parts of the Drum Brake picture.

Drum Brake Air Brakes Parts >> must know on the CDL TEST for Air Brakes Endorsement and on the DMV Skills Test, Road Trip and Pre-trip parts of DMV TEST.

Foundation brakes are used at each wheel.

The most common type is the s-cam drum brake.

CDL test answers CDL practice tests DMV practice tests CDL-TEST.comair brakes test cdl test endorsement dmv test

The parts of the brake are discussed below:

Brake Drums, Brake Shoes, and Brake Linings.

Brake drums are located on each end of the vehicle's axles. The wheels are bolted to the drums. The braking mechanism is inside the drum. To stop, the brake shoes and linings are pushed against the inside of the drum. This causes friction, which slows the vehicle (and creates heat). The heat a drum can take without damage depends on how hard and how long the brakes are used. Too much heat can make the brakes stop working.

 S-cam Brakes.

When you push the brake pedal, air is let into each brake chamber. Air pressure pushes the rod out, moving the slack adjuster, thus twisting the brake camshaft. This turns the s-cam (so called because it is shaped like the letter "S"). The s-cam forces the brake shoes away from one another and presses them against the inside of the brake drum. When you release the brake pedal, the s-cam rotates back and a spring pulls the brake shoes away from the drum, letting the wheels roll freely again.

Disc Brakes.

In air-operated disc brakes, air pressure acts on a brake chamber and slack adjuster, like s-cam brakes. But instead of the s-cam, a "power screw" is used. The pressure of the brake chamber on the slack adjuster turns the power screw. The power screw clamps the disc or rotor between the brake lining pads of a caliper, like a large c-clamp.

Wedge Brakes.

In this type of brake, the brake chamber push rod pushes a wedge directly between the ends of two brake shoes. This shoves them apart and against the inside of the brake drum. Wedge brakes may have a single brake chamber, or two brake chambers, pushing wedges in at both ends of the brake shoes. Wedge type brakes may be self-adjusting or may require manual adjustment.

Wedge brakes and disc brakes are less common than s-cam brakes.

1. Air Brakes - Supply Pressure Gauges

All vehicles with air brakes have a pressure gauge connected to the air tank. If the vehicle has a dual air brake system, there will be a gauge for each half of the system. (Or a single gauge with two needles.) Dual systems will be discussed later. These gauges tell you how much pressure is in the air tanks.

2. Air Brakes - Application Pressure Gauge

This gauge shows how much air pressure you are applying to the brakes. (This gauge is not on all vehicles.) Increasing application pressure to hold the same speed means the brakes are fading. You should slow down and use a lower gear. The need for increased pressure can also be caused by brakes out of adjustment, air leaks, or mechanical problems.

3. Air Brakes - Low Air Pressure Warning

You must memorize how the low air pressure warning works.  It is not only on the DMV CDL Tests but also a matter of life and death when considering safety.  We strongly recommend that you have access to real tractor-trailers to practice using the air brakes.

A low air pressure warning signal is required on vehicles with air brakes. A warning signal you can see must come on before the air pressure in the tanks falls below 60 psi. (Or one half the compressor governor cutout pressure on older vehicles.) The warning is usually a red light. A buzzer may also come on.

Another type of warning is the "wig wag." This device drops a mechanical arm into your view when the pressure in the system drops below 60 psi. An automatic wig wag will rise out of your view when the pressure in the system goes above 60 psi. The manual reset type must be placed in the "out of view" position manually. It will not stay in place until the pressure in the system is above 60 psi.

On a large buss, it is common for the low-pressure warning devices to signal at 80-85 psi.

Ari Brakes - Stop Light Switch

Drivers behind you must be warned when you put your brakes on. The air brake system does this with an electric switch that works by air pressure. The switch turns on the brake lights when you put on the air brakes.

Air Brakes - Front Brake Limiting Valve

Some older vehicles (made before 1975) have a front brake limiting valve and a control in the cab. The control is usually marked "normal" and "slippery." When you put the control in the "slippery" position, the limiting valve cuts the "normal" air pressure to the front brakes by half. Limiting valves were used to reduce the chance of the front wheels skidding on slippery surfaces. However, they reduce the stopping power of the vehicle. Front wheel braking is good under all conditions. Tests have shown front wheel skids from braking are not likely even on ice. Make sure the control is in the "normal" position to have normal stopping power.

Many vehicles have automatic front wheel limiting valves. They reduce the air to the front brakes except when the brakes are put on very hard (60 psi or more application pressure). These valves cannot be controlled by the driver.

Spring Brakes

All trucks, truck tractors, and buses must be equipped with emergency brakes and parking brakes. They must be held on by mechanical force (because air pressure can eventually leak away). Spring brakes are usually used to meet these needs. When driving, powerful springs are held back by air pressure. If the air pressure is removed, the springs put on the brakes. A parking brake control in the cab allows the driver to let the air out of the spring brakes. This lets the springs put the brakes on. A leak in the air brake system, which causes all the air to be lost, will also cause the springs to put on the brakes.

Tractor and straight truck spring brakes will come fully on when air pressure drops to a range of 20 to 45 psi (typically 20 to 30 psi). Do not wait for the brakes to come on automatically. When the low air pressure warning light and buzzer first come on, bring the vehicle to a safe stop right away, while you can still control the brakes.

The braking power of spring brakes depends on the brakes being in adjustment. If the brakes are not adjusted properly, neither the regular brakes nor the emergency/parking brakes will work right.

Parking Brake Controls for Air Brakes on Tractor Trailers.

air supply tractor trailer air brakes spring brakes low psi warning cdl testYOU Must know how to use both knobs on the left.

Tractor Protection Valve Air Brake Component for CDL TEST is always a question that can fail students if they get it wrong.

This picture shows actual Tractor Parking Brake Control Knobs from a commercial vehicle cabin.

In newer vehicles with air brakes, you put on the parking brakes using a diamond-shaped, yellow, push-pull control knob. You pull the knob out to put the parking brakes (spring brakes) on, and push it in to release them. On older vehicles, the parking brakes may be controlled by a lever. Use the parking brakes whenever you park.

CDL Air BRAKES Caution!

Never push the brake pedal down when the spring brakes are on. If you do, the brakes could be damaged by the combined forces of the springs and the air pressure. Many brake systems are designed so this will not happen. Not all systems are set up the same way.  It is much better to develop the habit of not pushing the brake pedal down when the spring brakes are on.

CDL Air Brakes Modulating Control Valves.

In some commercial vehicles a control handle on the dash board may be used to apply the spring brakes gradually. This is called a modulating valve. It is spring-loaded so you have a feel for the braking action. The more you move the control lever, the harder the spring brakes come on. They work this way so you can control the spring brakes if the service brakes fail. When parking a vehicle with a modulating control valve, move the lever as far as it will go and hold it in place with the locking device.

CDL Air Brakes Dual Parking Control Valves.

Some vehicles, such as buses, have a separate air tank which can be used to release the spring brakes.

When main air pressure is lost, the spring brakes come on.  This is so you can move the vehicle in an emergency. One of the valves is a push-pull type and is used to put on the spring brakes for parking. The other valve is spring loaded in the "out" position. When you push the control in, air from the separate air tank releases the spring brakes so you can move. When releasing the button, the spring brakes come on again. There is enough air in the separate tank to do this a few times. Always plan carefully when operating a commercial vehicle's breaking system. Otherwise, you may be stopped in a dangerous location when the separate air supply runs out.

You must know the names of the knobs and how they all work.  It is extremely important part of being a professional truck driver so get ready to memorize it all and learn it.  If you do not learn the air brakes components prior to driving a commercial vehicle you are considered an unsafe driver who needs more training.

Know that some newer semi's or Semi-Tractor & Trailer's have Anti-lock Braking Systems (ABS).

Truck tractors with air brakes or other air brakes vehicles, (trucks, buses, trailers, and converter dollies) are required to be equipped with anti-lock brakes. Many commercial vehicles built before these dates have been voluntarily equipped with ABS. Check the certification label for the date of manufacture to determine if your vehicle is equipped with ABS.

Most commercial vehicles use ABS is a computerized system that keeps your wheels from locking up during hard brake applications.  Know what ABS is and what it does and be prepared to mention it to the DMV instructor during the walk-around or skills test or pre-trip section of the class A CDL test at the DMV.

Vehicles with ABS have yellow malfunction lamps to tell you if something isn't working.

Tractors, trucks, and buses will have yellow ABS malfunction lamps on the instrument panel. You must know all gauges and instruments on the instrument panel.  Be prepared to point to and discuss what each knob, control switch, lever, pedal, etc. does in the cabin of a commercial vehicle.

Trailers will have yellow ABS malfunction lamps on the left side, either on the front or rear corner. Dollies manufactured on or after March 1, 1998 are required to have a lamp on the left side. On newer vehicles, the malfunction lamp comes on at start-up for a bulb check, and then goes out quickly. On older systems, the lamp could stay on until you are driving over five mph.

If the lamp stays on after the bulb check, or goes on once you are under way, you may have lost ABS control at one or more wheels.

In the case of towed units manufactured before it was required by the Department of Transportation, it may be difficult to tell if the unit is equipped with ABS. Look under the vehicle for the electronic control unit (ECU) and wheel speed sensor wires coming from the back of the brakes.

Air Brake System Components

Air Brakes System Components and Location

ABS is an addition to your normal brakes. It does not decrease or increase your normal braking capability. ABS only activate when wheels are about to lock up.  The computer takes control of braking by rapidly apply brakes pressure.

ABS does not necessarily shorten your stopping distance, but it does help you keep the vehicle under control during hard braking.  Most notably it helps to keep the tractor-trailer moving in a straight line during hard braking.  You may feel a strong vibration on the brake pedal when ABS is engaged.

CDL AIR BRAKES Test at the DMV

Get the answers to these questions and more by reading this web page and memorizing the pictures and names of Air Brakes components.  Be prepared to understand the air brake parts on both the CDL Air Brakes test questions and demonstrated knowledge of the air brakes and how they work on the Road Trip and Skill Test and Pre-Trip sections at the DMV with a certified DMV instructor.

 

 

 

More Health Tips for CDL Truck Drivers

Okay, I get it your busy driving a truck all day and you do not have time to be a health nut.  So we make it easy on our CDL Blog for truckers to find interesting ways to eat healthy.  After all we all have to pass the DOT Physical.  There is no way around the blood pressure test, and if you are lucky you can avoid a cpap mask.

When you are driving a commercial truck all day it can get hectic.  A packed 53' foot trailer behind you pushing close to 70 mph for 10 hours can leave you with very few options when it comes time to eat.  Either put up with the same old greasy cheese burger and fries (yes i love them too), or take a few minutes on a day off to prepare a great meal that can last a couple of days on the road with you.

This time for the healthy truck driver we prepared another crock pot recipe that is easy and great to eat.

Stuffed Cabbage Rolls

Ingredients

  1. 1/2 pound of jimmie dean sausage
  2. 1/2 pound of ground hamburger
  3. 1 sliced onion
  4. Cabbage
  5. Rice
  6. Tomato Sauce
  7. Garlic
  8. Sage
  9. Salt and pepper

Mix hamburger, sausage and onion in a skillet until lightly browned.  Prepare 1 cup of minute rice.  Mix this in one pot and leave on low on the stove.  While this is happening, clean and boil organic cabbage in large pot for a few minutes until soft. Don't burn your hands! Mix well and fill the cabbage leave full and roll over top.

Poor diced tomato and tomato sauce into the crock pot and turn it on high.

Roll cabbage stuffed with meat and rice mixture and place evenly across crackpot with two or three layers of rolled cabbage.  Then poor a little extra tomato sauce over the top.  They are not nice and pretty like the baked ones that use toothpicks to hold them together.  The crock-pot version of stuffed cabbage kinda explodes, but do not worry it tastes even better!  You will love it and it is much healthier than eating at the TRUCK STOP!

 

CDL TEST health tips for truck drivers

Stuffed cabbage rolls exploded by a crock pot.

CDL TEST healthy trucker tips

How to make stuffed cabbage rolls in crock pot.

Are You Ready to Step Up Your CDL Driving Career?

CDL TEST ANSWERSCDL TEST ANSWERS

 

 

 

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Healthy Tips for Truckers!

Healthy Eating Tips for Truckers!

All truckers worry about the same thing every couple years… how am I going to pass my Class A CDL DOT Physical? We tell ourselves the same thing every year… I am going to eat right this year. I am going to exercise this year… blah blah blah.  And then comes the DOT Physical and we need blood pressure medication because we barely even pass the High Blood Pressure Test. Then come the questions about how do I sleep? Do I snore? Have I ever used a CPAP?

I just want to drive my truck. I do not want to worry about DOT Physicals… so what can I do?

DOT Physical

Chicken Pot Pies

Start preparing meals ahead of time. Make meals that are easily transportable, but quick and healthy. Here is an example on how to turn the boring burger routine at lunch into something to look forward to…

First make chicken soup in a slow cooker (crock pot).
Chicken breast
Carrots
Peas
Onions
Chicken Stock
Sage
Basil
Add some egg noodles if you like, but not required.

DOT Physical

Chicken Pot Pies

Then use ready-made pie crust to create lunch for the next couple days.
Go to Amazon.com to get mini pie dishes and make miniature Chicken Pot Pies!
Just poor Chicken Soup into the mini pie dishes and place pie crust over them.
You can freeze them just like that, but they work better if you cook them first, then store in frig.

DOT Physical

Chicken Noodle Soup

or freezer or cooler.

For more information on Tips for Truckers visit our CDL TEST BLOG anytime for tips everything CDL!
www.CDL-TEST.com

 

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Fitness Tips for Truck Drivers!

Fitness Tips for Truckers

Tips for health Truck Drivers. Pass the DOT Physical.

Tips for healthy Truck Drivers. Pass the DOT Physical.

Want to avoid the cpap mask?  Want to avoid sleep apnea?  Want to avoid high-blood pressure?

Sure most truck drivers worry about that dreaded DOT Physical.  Maybe truck drivers could cut down on all-you-can-eat buffets, truck stop junk food, and long hours driving in a seat. But now the truck driver life is what you make of it. It is up to each Truck Driver to turn the tide on OTR health and DOT Physical health regulations.  I would rather ME do it, then have the FED make me do it.

Think about it, when you stop at the rest stop… go for a walk while drinking a healthy drink.  Just make mild changes to everyday activities if you want to make going to the DOT Physical – NO PROBLEM, start taking a walk about 45 minutes to 1 hour of brisk walking 4 days per week.  Stop eating drive thru and have fun cooking healthy meals.  Cut way back on drinking soda.  I'm serious.  Stop drinking soda if you can and drink tea or water.

Use social media to learn how other truckers cook on the go and eat GREAT while staying healthy.

  1. Look for hotels with fitness centers.
  2. Store Small Exercise Equipment in Your Truck

Try new portable fitness options for your OTR lifestyle…. try social media for healthy trucker trends on twitter.

Other truckers will post pictures of how they do it!!!

Train Anywhere With Body weight and Cardio

  1. Body weight Squats:  Try body weight squats! With your legs and thighs inactive throughout the day, squats are a great way to increase muscles and keep your body active.  Plus you burn a lot of calories.
  2. Push-ups: Everybody knows the push-up. They work great.
  3. Burpees: Try burpees. With a burpee, you get both strength training and aerobics.
  4. Cardio: Try running up and down stairs at big hotels.  It works!

 

Is trucking an unhealthy career choice?

Don’t Forget  >>  Loading: For some truckers, just loading and unloading can give a great workout. Go for a fast walk around the building after loading and unloading at warehouse.

 

 

 

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Kenworth Certified Pre-Owned Commercial Truck program

Kenworth Certified Pre-Owned Commercial Truck

Become an owner / operator with a Kenworth Certified Pre-Owned Commercial Truck!!

Kenworth Certified Pre-Owned Commercial Truck program

Kenworth is making a shift in marketing by offering a Certified Pre-Owned Commercial Truck program.  This is great for truckers who are not great mechanics because Kenworth will offer truck buyer's late model, low mileage trucks with engine and warranty coverage.

Kenworth trucks are well known for qualify, so marketing used trucks could help both Kenworth and the company driver who wants to become an owner operator.  Each Certified Pre-Owned Commercial Truck must undergo a 150-point inspection, which includes engine, after treatment, interior, exterior, chassis, electronics, safety devices and a road test. The trucks must also be certified by a Kenworth dealer technician, carry DOT certification and receive a full diesel particulate filter cleaning and an oil and filter change.

This is a new segment for Kenworth who is trying to drive up its profits by offering exceptional quality and an affordable price.  The Certified Pre-Owned Commercial Truck program will be beginning soon, so check back with us when we find out the launch date.

All new and certified pre-owned commercial trucks will be searchable at www.kenworth.com when the program is launched with information on truck specifications, photos, prices and dealer location.

Air Brakes TEST ? Memorize the following 7 Steps to pass ANY Air Brakes Questions DMV CDL

How to Pass Air Brakes during Road Skills and CDL permit test?

The answer is simple. Memorize the following 7 Steps to pass ANY

 

Air Brakes DMV TEST Questions

This works guaranteed. I made this when I was studying for my CDL 20 years ago and it still works today.  There is NO Easier way to pass the Air Brakes Test.>

DMV CDL Permit Test. Air Brakes.

IMPORTANT – AIR BRAKES HOW to PASS the First Time!!!

CDL Air Brakes – 7 - Seven Step Check

The Seven-Step Air Brake check is designed to test the governor cut-in and cut-out pressures, air pressure leakage, warning buzzer, brake valves and air pressure rebuild rates.

Brakes off means the yellow and/or red valve is pushed in (on = valve out).

  1. Engine on / Brakes on – check gauges to make sure governor cuts compressor off at 120 psi. Pump brakes until pressure drops below 100 psi to make sure governor cuts compressor on.
  2. Engine off / Brakes off – do not touch brakes – watch gauges to make sure pressure does not drop more than 3 psi in one minute.
  3. Press and hold brake pedal – watch gauges to make sure pressure does not drop more than 4 psi in one minute.
  4. Turn- key on / Engine off / Brakes off – pump brake until pressure drops to 60 psi

– warning buzzer should sound at or before 60 psi.

  1. Continue pumping brakes until reaching 20 to 40 psi – Emergency (red) and Service (yellow) brake valves should pop out turning brakes on.
  2. Rebuild air pressure in tank – hold accelerator at 1500 RPM. Watch air gauges and notice that pressure rate of build between 85 psi and 100 psi should not take more than 45 seconds.
  3. Perform tug tests. Tug against Parking Brake only. Tug against Emergency

Brake only. Tug against Hand Brake only. Test service brake by accelerating to 5mph and pressing brake pedal. If vehicle pulls to one side, this indicates a brake alignment problem.

If there is a problem discovered while testing the Air Brakes, do not drive the vehicle. It is your responsibility to make sure it is repaired by a mechanic. Never operate a vehicle that is unsafe to drive.

 

Tip: Know the parts of an S-cam Air Brake

before taking the Class A CDL TEST at the DMV.

LEARN THIS AND PASS Air Brake CDL questions on permit and skill Test.

 DMV TEST ANSWERS –> CDL ENDORSEMENTS PAGE – CDL-TEST copyrighted original - do not redistribute without our consent.

 

 

 

How To Pass Air Brakes Test at DMV

Air Brakes test at CDL School.

Air Brakes test at CDL School.

How to Pass Air Brakes Test at DMV?

One of the fastest ways to pass the Walk Around, Skills Test, and Road Trip where you prove to the DMV that you know how to operate an Air Brakes system on a semi-tractor and trailer.  The DMV is guaranteed to ask questions about Air Brakes Components so know all the pictures and names of components.

Also, when talking to the DMV about Air Brakes you can memorize the 7 Step Air Brake Check.  If you say it exactly or close to it, they will pass you for DMV air brakes knowledge.  You can find the 7 Step Air Brakes Check Here.

How to Pass an Air Brakes Test at the DMV?

DMV Skills TEST

DMV CDL Skills Test - Pre-Trip Inspection, walk-around, Road Trip.

First download the CDL HANDBOOK

Know any images / photos with different air brakes parts named.  Be prepared to name each Air Brake part. We provide free online CDL practice tests for air brakes endorsement test. Try our free Air Brakes practice test so you know how the website works.

Then sign up as a full member to learn about your state’s local DMV air brakes test questions.  You can complete the FREE CDL practice test as many times as needed.  But do not forget to sign up for the full membership to get over 2,000 DMV practice test questions and it covers the air brakes components thoroughly.

If you would like to learn more about Air Brakes Components Please SEE the list of air brakes components below:

There are many parts to a tractor-trailer air brake system.

It is important to understand all air brakes parts and what they do.

  1. Air Brakes - Air Compressor

The air compressor pumps air into the air storage tanks (reservoirs). The air compressor is connected to the engine through gears or a v-belt. The compressor may be air cooled or may be cooled by the engine cooling system. It may have its own oil supply or be lubricated by engine oil. If the compressor has its own oil supply, check the oil level before driving.

  1. Air Brakes - Air Compressor Governor

The governor controls when the air compressor will pump air into the air storage tanks. When air tank pressure rises to the "cut-out" level (around 125 pounds per-square-inch or "psi"), the governor stops the compressor from pumping air. When the tank pressure falls to the "cut-in" pressure (around 100 psi), the governor allows the compressor to start pumping again.

  1. Air Brakes - Air Storage Tanks

Air storage tanks are used to hold compressed air. The number and size of air tanks varies among vehicles. The tanks will hold enough air to allow the brakes to be used several times, even if the compressor stops working.

  1. Air Brakes - Air Tank Drains
Air tank with Manual Draining Valve for Air Brakes Test - CDL.

Air tank with Manual Draining Valve for Air Brakes Test - CDL.

Figure 4-1 Air Tanks Drains using the Manual Draining Valve on bottom of the  Air Tank.

Compressed air usually has some water and some compressor oil in it, which is bad for the air brake system. For example, the water can freeze in cold weather and cause brake failure. The water and oil tend to collect in the bottom of the air tank. Be sure that you drain the air tanks completely. Each air tank is equipped with a drain valve in the bottom. There are two types:

  • Manually operated by turning a quarter turn or by pulling a cable. You must drain the tanks yourself at the end of each day of driving. See Figure 4.1.
  • Automatic--the water and oil are automatically expelled. These tanks may be equipped for manual draining as well.

Automatic air tanks are available with electric heating devices. These help prevent freezing of the automatic drain in cold weather.  See Figure 4.1.

  1. Air Brakes Alcohol Evaporator

Some air brake systems have an alcohol evaporator to put alcohol into the air system. This helps to reduce the risk of ice in air brake valves and other parts during cold weather. Ice inside the system can make the brakes stop working.

Check the alcohol container and fill up as necessary, every day during cold weather. Daily air tank drainage is still needed to get rid of water and oil. (Unless the system has automatic drain valves.)

  1. Air Brakes Safety Valve

A safety relief valve is installed in the first tank the air compressor pumps air to. The safety valve protects the tank and the rest of the system from too much pressure. The valve is usually set to open at 150 psi. If the safety valve releases air, something is wrong. Have the fault fixed by a mechanic.

  1. The Air Brake Pedal

You put on the brakes by pushing down the brake pedal. (It is also called the foot valve or treadle valve.) Pushing the pedal down harder applies more air pressure. Letting up on the brake pedal reduces the air pressure and releases the brakes. Releasing the brakes lets some compressed air go out of the system, so the air pressure in the tanks is reduced. It must be made up by the air compressor. Pressing and releasing the pedal unnecessarily can let air out faster than the compressor can replace it. If the pressure gets too low, the brakes won't work.

  1. Foundation Air Brakes – the drum brake air brake component list
Air Brake Test CDL - Drum Brake picture with list of parts.

Air Brake Test CDL - Drum Brake picture with list of parts.

Figure 8-2 Drum Brake Air Brakes Parts List must know on the CDL TEST for Air Brakes Endorsement and on the DMV Skills Test, Road Trip and Pre-trip parts of DMV TEST.

Foundation brakes are used at each wheel. The most common type is the s-cam drum brake. The parts of the brake are discussed below.

Brake Drums, Shoes, and Linings. Brake drums are located on each end of the vehicle's axles. The wheels are bolted to the drums. The braking mechanism is inside the drum. To stop, the brake shoes and linings are pushed against the inside of the drum. This causes friction, which slows the vehicle (and creates heat). The heat a drum can take without damage depends on how hard and how long the brakes are used. Too much heat can make the brakes stop working.

S-cam Brakes. When you push the brake pedal, air is let into each brake chamber. Air pressure pushes the rod out, moving the slack adjuster, thus twisting the brake camshaft. This turns the s-cam (so called because it is shaped like the letter "S"). The s-cam forces the brake shoes away from one another and presses them against the inside of the brake drum. When you release the brake pedal, the s-cam rotates back and a spring pulls the brake shoes away from the drum, letting the wheels roll freely again. See Figure 8.2.

Wedge Brakes. In this type of brake, the brake chamber push rod pushes a wedge directly between the ends of two brake shoes. This shoves them apart and against the inside of the brake drum. Wedge brakes may have a single brake chamber, or two brake chambers, pushing wedges in at both ends of the brake shoes. Wedge type brakes may be self-adjusting or may require manual adjustment.

Disc Brakes. In air-operated disc brakes, air pressure acts on a brake chamber and slack adjuster, like s-cam brakes. But instead of the s-cam, a "power screw" is used. The pressure of the brake chamber on the slack adjuster turns the power screw. The power screw clamps the disc or rotor between the brake lining pads of a caliper, similar to a large c-clamp.

Wedge brakes and disc brakes are less common than s-cam brakes.

  1. Air Brakes - Supply Pressure Gauges

All vehicles with air brakes have a pressure gauge connected to the air tank. If the vehicle has a dual air brake system, there will be a gauge for each half of the system. (Or a single gauge with two needles.) Dual systems will be discussed later. These gauges tell you how much pressure is in the air tanks.

  1. Air Brakes - Application Pressure Gauge

This gauge shows how much air pressure you are applying to the brakes. (This gauge is not on all vehicles.) Increasing application pressure to hold the same speed means the brakes are fading. You should slow down and use a lower gear. The need for increased pressure can also be caused by brakes out of adjustment, air leaks, or mechanical problems.

  1. Air Brakes - Low Air Pressure Warning

You must memorize how the low air pressure warning works.  It is not only on the DMV CDL Tests but also a matter of life and death when considering safety.  We strongly recommend that you have access to real tractor-trailers to practice using the air brakes.

A low air pressure warning signal is required on vehicles with air brakes. A warning signal you can see must come on before the air pressure in the tanks falls below 60 psi. (Or one half the compressor governor cutout pressure on older vehicles.) The warning is usually a red light. A buzzer may also come on.

Another type of warning is the "wig wag." This device drops a mechanical arm into your view when the pressure in the system drops below 60 psi. An automatic wig wag will rise out of your view when the pressure in the system goes above 60 psi. The manual reset type must be placed in the "out of view" position manually. It will not stay in place until the pressure in the system is above 60 psi.

On large buses it is common for the low pressure warning devices to signal at 80-85 psi.

  1. Ari Brakes - Stop Light Switch

Drivers behind you must be warned when you put your brakes on. The air brake system does this with an electric switch that works by air pressure. The switch turns on the brake lights when you put on the air brakes.

  1. Air Brakes - Front Brake Limiting Valve

Some older vehicles (made before 1975) have a front brake limiting valve and a control in the cab. The control is usually marked "normal" and "slippery." When you put the control in the "slippery" position, the limiting valve cuts the "normal" air pressure to the front brakes by half. Limiting valves were used to reduce the chance of the front wheels skidding on slippery surfaces. However, they actually reduce the stopping power of the vehicle. Front wheel braking is good under all conditions. Tests have shown front wheel skids from braking are not likely even on ice. Make sure the control is in the "normal" position to have normal stopping power.

Many vehicles have automatic front wheel limiting valves. They reduce the air to the front brakes except when the brakes are put on very hard (60 psi or more application pressure). These valves cannot be controlled by the driver.

  1. Spring Brakes

All trucks, truck tractors, and buses must be equipped with emergency brakes and parking brakes. They must be held on by mechanical force (because air pressure can eventually leak away). Spring brakes are usually used to meet these needs. When driving, powerful springs are held back by air pressure. If the air pressure is removed, the springs put on the brakes. A parking brake control in the cab allows the driver to let the air out of the spring brakes. This lets the springs put the brakes on. A leak in the air brake system, which causes all the air to be lost, will also cause the springs to put on the brakes.

Tractor and straight truck spring brakes will come fully on when air pressure drops to a range of 20 to 45 psi (typically 20 to 30 psi). Do not wait for the brakes to come on automatically. When the low air pressure warning light and buzzer first come on, bring the vehicle to a safe stop right away, while you can still control the brakes.

The braking power of spring brakes depends on the brakes being in adjustment. If the brakes are not adjusted properly, neither the regular brakes nor the emergency/parking brakes will work right.

  1. Parking Brake Controls for Air Brakes on Tractor Trailers.
Tractor Protection Valve Air Brake Component for CDL TEST

Tractor Protection Valve Air Brake Component for CDL TEST

Figure 15-3 Tractor Parking Brake Control Knobs

In newer vehicles with air brakes, you put on the parking brakes using a diamond-shaped, yellow, push-pull control knob. You pull the knob out to put the parking brakes (spring brakes) on, and push it in to release them. On older vehicles, the parking brakes may be controlled by a lever. Use the parking brakes whenever you park.

Caution. Never push the brake pedal down when the spring brakes are on. If you do, the brakes could be damaged by the combined forces of the springs and the air pressure. Many brake systems are designed so this will not happen. But not all systems are set up that way, and those that are may not always work. It is much better to develop the habit of not pushing the brake pedal down when the spring brakes are on.

Modulating Control Valves. In some vehicles a control handle on the dash board may be used to apply the spring brakes gradually. This is called a modulating valve. It is spring-loaded so you have a feel for the braking action. The more you move the control lever, the harder the spring brakes come on. They work this way so you can control the spring brakes if the service brakes fail. When parking a vehicle with a modulating control valve, move the lever as far as it will go and hold it in place with the locking device.

Dual Parking Control Valves. When main air pressure is lost, the spring brakes come on. Some vehicles, such as buses, have a separate air tank which can be used to release the spring brakes. This is so you can move the vehicle in an emergency. One of the valves is a push-pull type and is used to put on the spring brakes for parking. The other valve is spring loaded in the "out" position. When you push the control in, air from the separate air tank releases the spring brakes so you can move. When you release the button, the spring brakes come on again. There is only enough air in the separate tank to do this a few times. Therefore, plan carefully when moving. Otherwise, you may be stopped in a dangerous location when the separate air supply runs out. See Figure 15.3.

You must know the names of the knobs and how they all work.  It is extremely important part of being a professional truck driver so get ready to memorize it all and learn it.  If you do not learn the air brakes components prior to driving a commercial vehicle you are considered an unsafe driver who needs more training.  See Figure 15.3.

  1. Semi-Tractor & Trailer - Antilock Braking Systems (ABS)

Truck tractors with air brakes built on or after March 1, 1997, and other air brakes vehicles, (trucks, buses, trailers, and converter dollies) built on or after March 1, 1998, are required to be equipped with antilock brakes. Many commercial vehicles built before these dates have been voluntarily equipped with ABS. Check the certification label for the date of manufacture to determine if your vehicle is equipped with ABS. ABS is a computerized system that keeps your wheels from locking up during hard brake applications.

Vehicles with ABS have yellow malfunction lamps to tell you if something isn't working.

Tractors, trucks, and buses will have yellow ABS malfunction lamps on the instrument panel.

Trailers will have yellow ABS malfunction lamps on the left side, either on the front or rear corner. Dollies manufactured on or after March 1, 1998 are required to have a lamp on the left side. On newer vehicles, the malfunction lamp comes on at start-up for a bulb check, and then goes out quickly. On older systems, the lamp could stay on until you are driving over five mph.

If the lamp stays on after the bulb check, or goes on once you are under way, you may have lost ABS control at one or more wheels.

In the case of towed units manufactured before it was required by the Department of Transportation, it may be difficult to tell if the unit is equipped with ABS. Look under the vehicle for the electronic control unit (ECU) and wheel speed sensor wires coming from the back of the brakes.

Air Brake System Components

Air Brake System Components

Figure 16-4 Air Brakes System Components and Location

ABS is an addition to your normal brakes. It does not decrease or increase your normal braking capability. ABS only activates when wheels are about to lock up.  The computer takes control of braking by rapidly apply brakes pressure.

ABS does not necessarily shorten your stopping distance, but it does help you keep the vehicle under control during hard braking.  Most notably it helps to keep the tractor-trailer moving in a straight line during hard braking.  You may feel a strong vibration on the brake pedal when ABS is engaged.

FREE CDL TEST QUESTIONS
CDL-Test sample test questions from DMV Handbook:

  1. Why must air tanks be drained?
  2. What is a supply pressure gauge used for?
  3. All vehicles with air brakes must have a low air pressure warning signal. True or False?
  4. What are spring brakes?
  5. Are front wheel brakes good under all conditions? True or False?
  6. How do you know if your vehicle is equipped with antilock brakes?

According to the DMV Handbook these questions may be on your

CDL AIR BRAKES test.

Get the answers to these questions and more by reading this web page and memorizing the pictures and names of Air Brakes components.  Be prepared to understand the air brake parts on both the CDL Air Brakes test questions and demonstrated knowledge of the air brakes and how they work on the Road Trip and Skill Test and Pre-Trip.

More Free CDL TEST Questions for Air Brakes:

FREE CDL Air Brakes Test Questions
1.  It is mandatory that all vehicles with air brakes have a low air pressure warning signal.
*A. True
B. Only some vehicles
C.  False

2.  You can check slack adjusters by ______?
A. By using an adjustable wrench
*B. By pulling hard on each slack adjusters
C. By frequently checking the low pressure gauge
D. You cannot manually check slack adjusters

3.  By using an adjustable wrench?
A. The loss rate should be less than two psi in one minute for single vehicles and less than three psi in one minute for combination vehicles
*B. The loss rate should be less than three psi in one minute for single vehicles and less than five psi in one minute for combination vehicles
C. There should be no air leaks
D. Breaking on a long steep downgrade should be used only as a supplement to the braking effect of the engine.
E. Depends on the weight of the GVCW of the vehicle

4.  Air tanks should be drained_____.

A. Every 4 hours or 350 miles
B. Every 3 hours or 100 miles
C. Drain your air tanks at the end of each working day
D. Once a week
*E. None of the above

5.   A supply pressure gauge is used for ______.

*A. The gauges tell you how much pressure is in the air tanks
B. The gauges tell you how much pressure is in the air lines
C.  The gauges warn you about brake chamber leaks only
D. The gauges monitor you how much slack is in the slack adjusters

6. What is the reason that air tanks must be drained?
A.  To keep the tanks cool while not in use
*B. To keep oil and water from building up in the tank
C. Air tanks should never be drained
D. To keep oil and toxic gas from building up in the tank
E. All of the above

7. Which of the following factors is known to cause brakes to fade or fail? (select all that apply)
A.  Using the engine brake and not using the brakes often enough can cause them to fail
B. Mismatched retread tires on a trailer
*C. An unbalanced load with too much weight on any one axle
*D. Brakes can fade or fail from excessive heat caused by using them too much

8. You don't need to use the parking brake if you are away from your vehicle for only a short time.
A. True
*B. False

9.   ______ is known as slack adjusters?

A. Lever connecting the brake chamber push rod with the return spring
B. Lever connecting the brake shoe with the brake drum
C. Lever connecting the brake chamber with the brake camshaft
*D. Lever connecting the brake chamber push rod with the foundation brake camshaft

10.  Front wheel brakes are good to use under all conditions?
*True
False

11. Spring brakes are ______?

*A. Powerful springs that are held back by air pressure. If the air pressure is removed, the springs put on the brakes.
B.  Big springs full of air pressure. If the air pressure is increased, the springs put on the brakes.
C. Large springs forced closed by air pressure. If the air pressure is increased, the springs release on the brakes.
D. None of the above

12. Why should you be in the proper gear before starting down a hill?
A. It is better than being in an improper gear
*B. Brakes can fade or fail from excessive heat caused by using them too much and not relying on the engine braking effect
C. Because it helps build up air pressure in your air tanks
D. Water can build up in your air tanks by not relying on the engine braking

13.  A dual air brake system is best described as______?
A. dual air brake system has two separate air brake systems; the first system is called the primary system. The other is called the secondary system.
B. dual air brake system has two separate air brake systems which use a single set of brake controls
C. dual air brake system has two separate air brake systems, both systems supply air to the trailer if there is one.
D. dual air brake system has two separate air brake systems, each system has its own air tanks, hoses, lines, etc.
*E. All of the above

14. What is the method used to check that the spring brakes will come on automatically?
*A. Step on and off the brake pedal to increase the air tank pressure, the parking brake knob should pop out when the air pressure rises to the manufacturer's specification.
B. Step on and off the brake pedal to reduce the air tank pressure while moving at a high rate of speed, the parking brake knob should pop out when the air pressure falls to the manufacturer's specification locking up all your tires.
C. Step on and off the brake pedal to reduce the air tank pressure, the parking brake knob should pop out when the air pressure rises to the manufacturer's specification of 120 psi.
D. Step on and off the brake pedal to reduce the air tank pressure, the parking brake knob should pop out when the air pressure falls to the manufacturer's specification.
*E. Turn the electrical power on and step on and off the brake pedal to reduce air tank pressure. The low air pressure warning signal must come on before the pressure drops to less than 60 psi in the air tank.
F. Turn the electrical power off and step on and off the brake pedal to reduce air tank pressure. The low air pressure warning signal must come on before the pressure drops to less than 30 psi in the air tank.
G. Turn the electrical power on and step on and off the brake pedal to increase air tank pressure. The low air pressure warning signal must come on before the pressure increases to more than 60 psi in the air tank.
H. Turn the electrical power off and step on and off the brake pedal to reduce air tank pressure. The low air pressure warning signal must come on before the pressure drops to less than 90 psi in the air tank.

 

 

 

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