TEXAS CDL AIR BRAKES EXAM, PRACTICE EXAM AND
STUDY GUIDE NEWEST 2024-2025 ACTUAL EXAM 250
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
(VERIFIED ANSWERS) |ALREADY GRADED A
You are driving on a straight, level highway at 50 mph. There are no vehicles in front of you. Suddenly a
tire blew out of your vehicle, what should you do first? - ANSWER-Stay off the brake until the vehicle
has slowed down.
You are driving a truck with a manual transmission. What gear will you probably have to use to take a
long, steep downhill grade? - ANSWER-A lower gear than you would use to climb the hill.
Which of the following statements about speed management is true? - ANSWER-If you double your
speed, stopping distance will be increased by 4 times.
You are traveling down a long, steep hill. Your brakes get so hot that they have failed. What should you
do? - ANSWER-Look for an escape ramp or escape route.
The center of gravity of a load: - ANSWER-Can make a vehicle more likely to tip over on curves if it is
high.
To prevent a load from shifting, there should be at least one tie down for every ___ feet of cargo. -
ANSWER-10
While driving, ice builds up on your wipers and they no longer clean the windshield. You should: -
ANSWER-Stop safely and fix the problem.
When the hydraulic brakes fail while you are driving, the system will not build up pressure and the break
pedal will feel spongy or go to the floor. What should you do? - ANSWER-Pump the brake pedal to
generate pressure.
,Which may be a sign of tire failure? - ANSWER-Vibration.
To prevent brake fade you should: - ANSWER-Select the gear, which will keep your vehicle to a safe
speed on a deep downgrade.
A full stop is required at a railroad crossing when: - ANSWER-The nature of the cargo makes a stop
mandatory under the State or Federal regulations.
When driving at night you should use your high beams when oncoming traffic is not within ___ feet? -
ANSWER-500
When driving through the work zone you should: - ANSWER-Watch for sharp pavement drop off.
Backing of the commercial vehicle is: - ANSWER-Always dangerous.
When you are parked on the side of the road at night you must: - ANSWER-Turn on your 4-way
emergency flashers to warn others.
You must stop on a hill or curve on a two-lane, two-way road. How far back should you place your
reflective triangles? - ANSWER-Within 500 feet behind the vehicle.
Stab braking should not be used on vehicles with: - ANSWER-Anti-lock brakes.
Sometimes you need to leave a road to avoid a hazard or emergency. When you do, you should keep in
mind, that: - ANSWER-It is less dangerous to drive onto the shoulders than to cause a collision.
Which of the following is NOT a characteristic of tire failure? - ANSWER-Cold Steering.
, Most skids: - ANSWER-Are caused by going too fast or trying to stop too quickly.
In bad weather many drivers tailgate large vehicles. What should you do? - ANSWER-Increase your
following distance.
Which of the following systems should receive extra attention during winter weather inspection? -
ANSWER-Exhaust.
What happens to tar on the road pavement during hot weather? - ANSWER-It bleeds making the
road surface slippery.
What is the best advice for drivers when a heavy fog occurs? - ANSWER-Park the truck until the fog
disappears.
In mountain driving you will have to use a lower gear to drive safely on a grade. Which of these does NOT
affect your choice of gear? - ANSWER-Tire thread's depth.
What should you do before driving in mountains? - ANSWER-Know escape ramps location on your
way.
Escape ramps: - ANSWER-Should be used by any driver who loses braking power.
Which of these is true about notifying the authorities after an accident occurs? - ANSWER-If you
have a cellular phone or CB radio you should notify the authorities before exiting the vehicle.
If you are not sure what to use to put out a hazardous material fire you should: - ANSWER-Wait for
fire fighters.
STUDY GUIDE NEWEST 2024-2025 ACTUAL EXAM 250
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
(VERIFIED ANSWERS) |ALREADY GRADED A
You are driving on a straight, level highway at 50 mph. There are no vehicles in front of you. Suddenly a
tire blew out of your vehicle, what should you do first? - ANSWER-Stay off the brake until the vehicle
has slowed down.
You are driving a truck with a manual transmission. What gear will you probably have to use to take a
long, steep downhill grade? - ANSWER-A lower gear than you would use to climb the hill.
Which of the following statements about speed management is true? - ANSWER-If you double your
speed, stopping distance will be increased by 4 times.
You are traveling down a long, steep hill. Your brakes get so hot that they have failed. What should you
do? - ANSWER-Look for an escape ramp or escape route.
The center of gravity of a load: - ANSWER-Can make a vehicle more likely to tip over on curves if it is
high.
To prevent a load from shifting, there should be at least one tie down for every ___ feet of cargo. -
ANSWER-10
While driving, ice builds up on your wipers and they no longer clean the windshield. You should: -
ANSWER-Stop safely and fix the problem.
When the hydraulic brakes fail while you are driving, the system will not build up pressure and the break
pedal will feel spongy or go to the floor. What should you do? - ANSWER-Pump the brake pedal to
generate pressure.
,Which may be a sign of tire failure? - ANSWER-Vibration.
To prevent brake fade you should: - ANSWER-Select the gear, which will keep your vehicle to a safe
speed on a deep downgrade.
A full stop is required at a railroad crossing when: - ANSWER-The nature of the cargo makes a stop
mandatory under the State or Federal regulations.
When driving at night you should use your high beams when oncoming traffic is not within ___ feet? -
ANSWER-500
When driving through the work zone you should: - ANSWER-Watch for sharp pavement drop off.
Backing of the commercial vehicle is: - ANSWER-Always dangerous.
When you are parked on the side of the road at night you must: - ANSWER-Turn on your 4-way
emergency flashers to warn others.
You must stop on a hill or curve on a two-lane, two-way road. How far back should you place your
reflective triangles? - ANSWER-Within 500 feet behind the vehicle.
Stab braking should not be used on vehicles with: - ANSWER-Anti-lock brakes.
Sometimes you need to leave a road to avoid a hazard or emergency. When you do, you should keep in
mind, that: - ANSWER-It is less dangerous to drive onto the shoulders than to cause a collision.
Which of the following is NOT a characteristic of tire failure? - ANSWER-Cold Steering.
, Most skids: - ANSWER-Are caused by going too fast or trying to stop too quickly.
In bad weather many drivers tailgate large vehicles. What should you do? - ANSWER-Increase your
following distance.
Which of the following systems should receive extra attention during winter weather inspection? -
ANSWER-Exhaust.
What happens to tar on the road pavement during hot weather? - ANSWER-It bleeds making the
road surface slippery.
What is the best advice for drivers when a heavy fog occurs? - ANSWER-Park the truck until the fog
disappears.
In mountain driving you will have to use a lower gear to drive safely on a grade. Which of these does NOT
affect your choice of gear? - ANSWER-Tire thread's depth.
What should you do before driving in mountains? - ANSWER-Know escape ramps location on your
way.
Escape ramps: - ANSWER-Should be used by any driver who loses braking power.
Which of these is true about notifying the authorities after an accident occurs? - ANSWER-If you
have a cellular phone or CB radio you should notify the authorities before exiting the vehicle.
If you are not sure what to use to put out a hazardous material fire you should: - ANSWER-Wait for
fire fighters.
