Texas CDL General Knowledge Test
Questions with Accurate Answers
In Texas, the mud flaps on a truck or trailer must reach - ANSWERSwithin 8 inches of
the roadway
Which of the following statements about an escape ramp is FALSE? - ANSWERSIt is of
NO use if you are traveling too fast.
After you start the engine, the oil pressure should rise to normal within -
ANSWERSseconds
If you are stopped by the police and refuse to submit to a chemical test for drugs or
alcohol, - ANSWERSyou will lose your CDL for at least one year.
In Texas, the maximum weight for a single or combination vehicle including its load is -
ANSWERS80,000
Streaks of rust on a lug nut are signs that - ANSWERSit's loose.
If dense fog reduces visibility to near zero, what should you do? - ANSWERSPull 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% - ANSWERSyou 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? -
ANSWERSAll of the above: Sand, Gravel, Wood Chips
To obtain a CDL, you must certify that - ANSWERSAll 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? - ANSWERS2
A fire extinguisher that is rated B:C is suitable for - ANSWERSelectrical fires and
burning liquids.
What will help a drunk sober up? - ANSWERSTime
In which of the following situations should you NOT sound your horn? - ANSWERSto
express your annoyance at someone
, You don't want to be a distracted driver, so you - ANSWERSavoid 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? - ANSWERSApply 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? -
ANSWERSStop and check your tires now.
Why should you use a helper when you are backing? - ANSWERSBecause every truck
has blind spots
To avoid overloading bridges, a bridge formula restricts the axle weight for axles that -
ANSWERSare closer together
If you are pulling a trailer and a fire breaks out inside it, what should you do? -
ANSWERSKeep the trailer's doors closed.
If you double your speed, how much more distance will it take to brake to a stop? -
ANSWERSFour times as much.
How can you determine if your vehicle is equipped with an antilock braking system
(ABS)? - ANSWERSAll of the above can work:
- Check for a yellow ABS malfunction lamp on the instrument panel.
- Look for wheel speed sensor wires that are coming from the rear of your brakes.
- Check if your vehicle was manufactures after March 1, 1998 (Such vehicles are
required to have the panel light.)
How many different states' commercial driver licenses (CDLs) can you hold
simultaneously? - ANSWERSOne
In Texas, the mud flaps on a truck or trailer must reach - ANSWERSwithin 8 inches of
the roadway.
If you are traveling at 55mph in a 30-foot vehicle, you should leave how many seconds
of the following distance? - ANSWERS4 seconds
In Texas, if your load extends more than 4 feet beyond the rear of your vehicle, you
must have - ANSWERSAll of the Above:
- a special permit
- a red flag on the end of the load in the daytime
- a red light on the end of the load at night
Questions with Accurate Answers
In Texas, the mud flaps on a truck or trailer must reach - ANSWERSwithin 8 inches of
the roadway
Which of the following statements about an escape ramp is FALSE? - ANSWERSIt is of
NO use if you are traveling too fast.
After you start the engine, the oil pressure should rise to normal within -
ANSWERSseconds
If you are stopped by the police and refuse to submit to a chemical test for drugs or
alcohol, - ANSWERSyou will lose your CDL for at least one year.
In Texas, the maximum weight for a single or combination vehicle including its load is -
ANSWERS80,000
Streaks of rust on a lug nut are signs that - ANSWERSit's loose.
If dense fog reduces visibility to near zero, what should you do? - ANSWERSPull 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% - ANSWERSyou 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? -
ANSWERSAll of the above: Sand, Gravel, Wood Chips
To obtain a CDL, you must certify that - ANSWERSAll 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? - ANSWERS2
A fire extinguisher that is rated B:C is suitable for - ANSWERSelectrical fires and
burning liquids.
What will help a drunk sober up? - ANSWERSTime
In which of the following situations should you NOT sound your horn? - ANSWERSto
express your annoyance at someone
, You don't want to be a distracted driver, so you - ANSWERSavoid 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? - ANSWERSApply 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? -
ANSWERSStop and check your tires now.
Why should you use a helper when you are backing? - ANSWERSBecause every truck
has blind spots
To avoid overloading bridges, a bridge formula restricts the axle weight for axles that -
ANSWERSare closer together
If you are pulling a trailer and a fire breaks out inside it, what should you do? -
ANSWERSKeep the trailer's doors closed.
If you double your speed, how much more distance will it take to brake to a stop? -
ANSWERSFour times as much.
How can you determine if your vehicle is equipped with an antilock braking system
(ABS)? - ANSWERSAll of the above can work:
- Check for a yellow ABS malfunction lamp on the instrument panel.
- Look for wheel speed sensor wires that are coming from the rear of your brakes.
- Check if your vehicle was manufactures after March 1, 1998 (Such vehicles are
required to have the panel light.)
How many different states' commercial driver licenses (CDLs) can you hold
simultaneously? - ANSWERSOne
In Texas, the mud flaps on a truck or trailer must reach - ANSWERSwithin 8 inches of
the roadway.
If you are traveling at 55mph in a 30-foot vehicle, you should leave how many seconds
of the following distance? - ANSWERS4 seconds
In Texas, if your load extends more than 4 feet beyond the rear of your vehicle, you
must have - ANSWERSAll of the Above:
- a special permit
- a red flag on the end of the load in the daytime
- a red light on the end of the load at night
