TEXAS CDL AIR BRAKES EXAM, PRACTICE EXAM AND
STUDY GUIDE NEWEST 2024 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.
You are checking your wheels and rims for a pre-trip inspection. Which of these statements is true? -
answer-Rust around wheel nuts may mean that they are loose.
You are checking your tires for a pre-trip inspection. Which of these statements is true? - answer-Tires
of mismatched sizes should not be used together in the same vehicle.
If a straight vehicle (no trailer or articulation) goes into a front wheel skid it will: - answer-Go straight
ahead even if the steering wheel is turned
If you need to leave the road in a traffic emergency, you should: - answer-Avoid braking until your speed
has dropped to about 20 mph.
Which of these statements about certain types of cargo is true? - answer-Unstable load such as hanging
meat or livestock can require extra caution on curves.
According to the driver's manual, why should you limit the use of your horn? - answer-It can startle
other drivers.
You do not have a hazardous materials endorsement on your commercials driver's license. You are
asked to deliver hazardous materials in a placarded vehicle. You should: - answer-Refuse to haul the
load.
,Which of these statements about staying alert to drive is true? - answer-Sleep is the only thing that can
overcome fatigue.
Your vehicle has hydraulic brakes. While traveling on a level road, you press the brake pedal and find
that it goes to the floor. Which of these statements is true? - answer-Pumping the brake pedal may
bring the pressure up so you can stop the vehicle.
You are driving a vehicle at 55 mph on dry pavement. About how much total stopping distance will you
need to bring it to a stop? - answer-The length of a football field.
Which of these statements about cold weather driving is true? - answer-Windshield washer antifreeze
should be used.
When driving at night, you should: - answer-Adjust your speed to keep your stopping distance within
your sight distance.
Which of these statements about downshifting is true? - answer-When you downshift for a curve, you
should do so before you enter the curve.
For your safety, when setting out reflective triangles you should: - answer-Hold the triangles between
yourself and oncoming traffic.
As the blood alcohol concentration (BAC) goes up, what happens? - answer-Judgment and self-control
are affected.
Which of these is a good thing to remember about using mirrors? - answer-There are blind spots that
your mirrors cannot show
Hydroplaning: - answer-Is more likely if tire pressure is low.
If you are being tailgated, you should: - answer-Increase your following distance.
, A key principle to remember about loading cargo is to keep the load: - answer-Balanced in the cargo
area.
How far should a driver look ahead of the vehicle while driving? - answer-12-15 seconds.
How do you correct a drive-wheel acceleration skid? - answer-Stop accelerating.
The purpose of retarders is to: - answer-Help slow the vehicle while driving and reduce brake wear.
Controlled braking: - answer-Is used to keep a vehicle in a straight line when braking.
Which of these is a good thing to do when steering to avoid a crash? - answer-Don't turn any more than
needed to clear what is in your way.
You should stop driving: - answer-Whenever you become sleepy.
Which of these is NOT a good rule to follow when caring for injured persons at an accident scene? -
answer-Keep injured persons cool.
You should avoid driving through deep puddles or flowing water. But if you must, which of these steps
can help keep your brakes working? - answer-Gently putting on the brakes while driving through the
water.
Which of these statements about drugs is true? - answer-Use of drugs can lead to accidents and / or
arrest.
Which of these is a good thing to remember when crossing or entering traffic with a heavy vehicle? -
answer-Heavy vehicles need larger gaps in traffic than cars.
You are driving a heavy vehicle with a manual transmission. You have to stop the vehicle on the shoulder
while driving on an uphill grade. Which of these is a good rule to follow when putting it back in motion
up the grade? - answer-Use the parking brake to hold the vehicle until the clutch engages.
STUDY GUIDE NEWEST 2024 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.
You are checking your wheels and rims for a pre-trip inspection. Which of these statements is true? -
answer-Rust around wheel nuts may mean that they are loose.
You are checking your tires for a pre-trip inspection. Which of these statements is true? - answer-Tires
of mismatched sizes should not be used together in the same vehicle.
If a straight vehicle (no trailer or articulation) goes into a front wheel skid it will: - answer-Go straight
ahead even if the steering wheel is turned
If you need to leave the road in a traffic emergency, you should: - answer-Avoid braking until your speed
has dropped to about 20 mph.
Which of these statements about certain types of cargo is true? - answer-Unstable load such as hanging
meat or livestock can require extra caution on curves.
According to the driver's manual, why should you limit the use of your horn? - answer-It can startle
other drivers.
You do not have a hazardous materials endorsement on your commercials driver's license. You are
asked to deliver hazardous materials in a placarded vehicle. You should: - answer-Refuse to haul the
load.
,Which of these statements about staying alert to drive is true? - answer-Sleep is the only thing that can
overcome fatigue.
Your vehicle has hydraulic brakes. While traveling on a level road, you press the brake pedal and find
that it goes to the floor. Which of these statements is true? - answer-Pumping the brake pedal may
bring the pressure up so you can stop the vehicle.
You are driving a vehicle at 55 mph on dry pavement. About how much total stopping distance will you
need to bring it to a stop? - answer-The length of a football field.
Which of these statements about cold weather driving is true? - answer-Windshield washer antifreeze
should be used.
When driving at night, you should: - answer-Adjust your speed to keep your stopping distance within
your sight distance.
Which of these statements about downshifting is true? - answer-When you downshift for a curve, you
should do so before you enter the curve.
For your safety, when setting out reflective triangles you should: - answer-Hold the triangles between
yourself and oncoming traffic.
As the blood alcohol concentration (BAC) goes up, what happens? - answer-Judgment and self-control
are affected.
Which of these is a good thing to remember about using mirrors? - answer-There are blind spots that
your mirrors cannot show
Hydroplaning: - answer-Is more likely if tire pressure is low.
If you are being tailgated, you should: - answer-Increase your following distance.
, A key principle to remember about loading cargo is to keep the load: - answer-Balanced in the cargo
area.
How far should a driver look ahead of the vehicle while driving? - answer-12-15 seconds.
How do you correct a drive-wheel acceleration skid? - answer-Stop accelerating.
The purpose of retarders is to: - answer-Help slow the vehicle while driving and reduce brake wear.
Controlled braking: - answer-Is used to keep a vehicle in a straight line when braking.
Which of these is a good thing to do when steering to avoid a crash? - answer-Don't turn any more than
needed to clear what is in your way.
You should stop driving: - answer-Whenever you become sleepy.
Which of these is NOT a good rule to follow when caring for injured persons at an accident scene? -
answer-Keep injured persons cool.
You should avoid driving through deep puddles or flowing water. But if you must, which of these steps
can help keep your brakes working? - answer-Gently putting on the brakes while driving through the
water.
Which of these statements about drugs is true? - answer-Use of drugs can lead to accidents and / or
arrest.
Which of these is a good thing to remember when crossing or entering traffic with a heavy vehicle? -
answer-Heavy vehicles need larger gaps in traffic than cars.
You are driving a heavy vehicle with a manual transmission. You have to stop the vehicle on the shoulder
while driving on an uphill grade. Which of these is a good rule to follow when putting it back in motion
up the grade? - answer-Use the parking brake to hold the vehicle until the clutch engages.
