TEXAS CDL GENERAL KNOWLEDGE
TEST QUESTIONS AND CORRECT
ANSWERS
In Texas, the maximum weight for a single or combination vehicle including its load is
✅✅CORRECT ANSW-80,000
Streaks of rust on a lug nut are signs that ✅✅CORRECT ANSW-it's loose.
If dense fog reduces visibility to near zero, what should you do? ✅✅CORRECT ANSW-Pull off the
road and stop.
If you are found to be driving a commercial motor vehicle with your blood alcohol concentration
(BAC) above zero but below 0.04% ✅✅CORRECT ANSW-you will be ordered out of service for 24
hours.
In Texas, which of the following are you not allowed to transport in an open truck? ✅✅CORRECT
ANSW-All of the above: Sand, Gravel, Wood Chips
To obtain a CDL, you must certify that ✅✅CORRECT ANSW-All of the Above: not addicted to
drugs, not an insulin-dependent diabetic, not addicted to alcohol
How many tie-downs are required for a 17-foot load? ✅✅CORRECT ANSW-2
A fire extinguisher that is rated B:C is suitable for ✅✅CORRECT ANSW-electrical fires and burning
liquids.
What will help a drunk sober up? ✅✅CORRECT ANSW-Time
In which of the following situations should you NOT sound your horn? ✅✅CORRECT ANSW-to
express your annoyance at someone
, You don't want to be a distracted driver, so you ✅✅CORRECT ANSW-avoid using your cell phone
until you reach your destination.
If an accident victim is bleeding heavily and no qualified professional is available, what can you do to
help? ✅✅CORRECT ANSW-Apply direct pressure to the wound.
While driving a vehicle with dual tires, you hear a noise that sounds like a tire blowout. However,
your vehicle's handling seems unaffected. What should you do? ✅✅CORRECT ANSW-Stop and
check your tires now.
In Texas, the mud flaps on a truck or trailer must reach ✅✅CORRECT ANSW-within 8 inches of the
roadway
Which of the following statements about an escape ramp is FALSE? ✅✅CORRECT ANSW-It is of
NO use if you are traveling too fast.
After you start the engine, the oil pressure should rise to normal within ✅✅CORRECT ANSW-
seconds
If you are stopped by the police and refuse to submit to a chemical test for drugs or alcohol,
✅✅CORRECT ANSW-you will lose your CDL for at least one year.
Why should you use a helper when you are backing? ✅✅CORRECT ANSW-Because every truck has
blind spots
To avoid overloading bridges, a bridge formula restricts the axle weight for axles that
✅✅CORRECT ANSW-are closer together
If you are pulling a trailer and a fire breaks out inside it, what should you do? ✅✅CORRECT
ANSW-Keep the trailer's doors closed.
If you double your speed, how much more distance will it take to brake to a stop? ✅✅CORRECT
ANSW-Four times as much.
How can you determine if your vehicle is equipped with an antilock braking system (ABS)?
✅✅CORRECT ANSW-All of the above can work:
TEST QUESTIONS AND CORRECT
ANSWERS
In Texas, the maximum weight for a single or combination vehicle including its load is
✅✅CORRECT ANSW-80,000
Streaks of rust on a lug nut are signs that ✅✅CORRECT ANSW-it's loose.
If dense fog reduces visibility to near zero, what should you do? ✅✅CORRECT ANSW-Pull off the
road and stop.
If you are found to be driving a commercial motor vehicle with your blood alcohol concentration
(BAC) above zero but below 0.04% ✅✅CORRECT ANSW-you will be ordered out of service for 24
hours.
In Texas, which of the following are you not allowed to transport in an open truck? ✅✅CORRECT
ANSW-All of the above: Sand, Gravel, Wood Chips
To obtain a CDL, you must certify that ✅✅CORRECT ANSW-All of the Above: not addicted to
drugs, not an insulin-dependent diabetic, not addicted to alcohol
How many tie-downs are required for a 17-foot load? ✅✅CORRECT ANSW-2
A fire extinguisher that is rated B:C is suitable for ✅✅CORRECT ANSW-electrical fires and burning
liquids.
What will help a drunk sober up? ✅✅CORRECT ANSW-Time
In which of the following situations should you NOT sound your horn? ✅✅CORRECT ANSW-to
express your annoyance at someone
, You don't want to be a distracted driver, so you ✅✅CORRECT ANSW-avoid using your cell phone
until you reach your destination.
If an accident victim is bleeding heavily and no qualified professional is available, what can you do to
help? ✅✅CORRECT ANSW-Apply direct pressure to the wound.
While driving a vehicle with dual tires, you hear a noise that sounds like a tire blowout. However,
your vehicle's handling seems unaffected. What should you do? ✅✅CORRECT ANSW-Stop and
check your tires now.
In Texas, the mud flaps on a truck or trailer must reach ✅✅CORRECT ANSW-within 8 inches of the
roadway
Which of the following statements about an escape ramp is FALSE? ✅✅CORRECT ANSW-It is of
NO use if you are traveling too fast.
After you start the engine, the oil pressure should rise to normal within ✅✅CORRECT ANSW-
seconds
If you are stopped by the police and refuse to submit to a chemical test for drugs or alcohol,
✅✅CORRECT ANSW-you will lose your CDL for at least one year.
Why should you use a helper when you are backing? ✅✅CORRECT ANSW-Because every truck has
blind spots
To avoid overloading bridges, a bridge formula restricts the axle weight for axles that
✅✅CORRECT ANSW-are closer together
If you are pulling a trailer and a fire breaks out inside it, what should you do? ✅✅CORRECT
ANSW-Keep the trailer's doors closed.
If you double your speed, how much more distance will it take to brake to a stop? ✅✅CORRECT
ANSW-Four times as much.
How can you determine if your vehicle is equipped with an antilock braking system (ABS)?
✅✅CORRECT ANSW-All of the above can work:
