CDL - Controlling your Speed
Exam Questions and Answers
100% PASS
You are driving a vehicle that could safety be driven at 55 mph on an open road. But traffic
is now heavy, moving at 35 mph, although the speed limit is 55 mph. The safest speed for
your vehicle in this situation is most likely:—ANSWER-35 mph
For an average commercial vehicle drive at 55 mph on dry pavement, it will take about
___________ to bring the vehicle to a stop—ANSWER-The length of a football field
Which of these statements about brakes is correct?—ANSWER-The heavier a or fasters it
moving, the more heat the brakes must absorb to stop it
What should you do when your vehicle hydroplanes?—ANSWER-Release the accelerator
You're driving a heavy vehicle and must exit a highway off-ramp that curves downhill. You
should:—ANSWER-Slow down to a safe speed before the curve
Which of these statements about speed management is correct?—ANSWER-All of the above
What will most likely cause hydroplaning?—ANSWER-Is more likely if tire pressure is low
The "reaction distance" is the distance traveled from the time—ANSWER-The brain tells the
foot to push the brake pedal, to the time the foot actually pushes the pedal
Exam Questions and Answers
100% PASS
You are driving a vehicle that could safety be driven at 55 mph on an open road. But traffic
is now heavy, moving at 35 mph, although the speed limit is 55 mph. The safest speed for
your vehicle in this situation is most likely:—ANSWER-35 mph
For an average commercial vehicle drive at 55 mph on dry pavement, it will take about
___________ to bring the vehicle to a stop—ANSWER-The length of a football field
Which of these statements about brakes is correct?—ANSWER-The heavier a or fasters it
moving, the more heat the brakes must absorb to stop it
What should you do when your vehicle hydroplanes?—ANSWER-Release the accelerator
You're driving a heavy vehicle and must exit a highway off-ramp that curves downhill. You
should:—ANSWER-Slow down to a safe speed before the curve
Which of these statements about speed management is correct?—ANSWER-All of the above
What will most likely cause hydroplaning?—ANSWER-Is more likely if tire pressure is low
The "reaction distance" is the distance traveled from the time—ANSWER-The brain tells the
foot to push the brake pedal, to the time the foot actually pushes the pedal
