Texas CDL General Knowledge Test Newest 2026
Questions and Correct Detailed Answers Already
Graded A+
Why should you use a helper when you are backing? - CORRECT ANSWER-
Because every truck has blind spots
To avoid overloading bridges, a bridge formula restricts the axle weight for axles
that - CORRECT ANSWER-are closer together
If you are pulling a trailer and a fire breaks out inside it, what should you do? -
CORRECT ANSWER-Keep the trailer's doors closed.
If you double your speed, how much more distance will it take to brake to a stop?
- CORRECT ANSWER-Four times as much.
How can you determine if your vehicle is equipped with an antilock braking
system (ABS)? - CORRECT ANSWER-All 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? - CORRECT ANSWER-One
In Texas, the mud flaps on a truck or trailer must reach - CORRECT
ANSWER-within 8 inches of the roadway
Which of the following statements about an escape ramp is FALSE? -
CORRECT ANSWER-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 ANSWER-seconds
If you are stopped by the police and refuse to submit to a chemical test for drugs
or alcohol, - CORRECT ANSWER-you will lose your CDL for at least one
year.
Questions and Correct Detailed Answers Already
Graded A+
Why should you use a helper when you are backing? - CORRECT ANSWER-
Because every truck has blind spots
To avoid overloading bridges, a bridge formula restricts the axle weight for axles
that - CORRECT ANSWER-are closer together
If you are pulling a trailer and a fire breaks out inside it, what should you do? -
CORRECT ANSWER-Keep the trailer's doors closed.
If you double your speed, how much more distance will it take to brake to a stop?
- CORRECT ANSWER-Four times as much.
How can you determine if your vehicle is equipped with an antilock braking
system (ABS)? - CORRECT ANSWER-All 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? - CORRECT ANSWER-One
In Texas, the mud flaps on a truck or trailer must reach - CORRECT
ANSWER-within 8 inches of the roadway
Which of the following statements about an escape ramp is FALSE? -
CORRECT ANSWER-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 ANSWER-seconds
If you are stopped by the police and refuse to submit to a chemical test for drugs
or alcohol, - CORRECT ANSWER-you will lose your CDL for at least one
year.
