Texas CDL general knowledge exam
TEXAS CDL GENERAL KNOWLEDGE EXAM 2025, CDL TEST STUDY
GUIDE PDF, TEXAS COMMERCIAL DRIVER LICENSE QUESTIONS,
CDL PRACTICE TEST 2025, TEXAS DPS CDL PREP, VERIFIED CDL
ANSWERS TEXAS, CDL EXAM QUESTIONS AND ANSWERS
Which of the following vehicles must have mud flaps when operated on public roads? -
ANSWER-all vehicles with four or more tires on the rear axle except single truck tractors and
pole trailers.
The top speed limit for heavy trucks on designated rural interstates in the daytime is: - ANSWER-
70 mph.
Clearance lights on the front of a vehicle must be: - ANSWER-amber.
When a truck breaks down on the highway in the daytime the driver should set out: - ANSWER-
three red reflectors.
The greatest width allowed by State law for a truck including the load is: - ANSWER-102 inches
(8-1/2 feet).
Which of the following vehicles must have mud flaps when operated on public roads? -
ANSWER-all vehicles with four or more tires on the rear axle except single truck tractors and
pole trailers.
Which of the following vehicles are required by State law to stop at railroad grade crossings
outside city limits where no traffic control device is in operation? - ANSWER-buses carrying
passengers for hire.
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, Texas CDL general knowledge exam
Turn signal indicators are required on all motor vehicles manufactured after the model year: -
ANSWER-1959.
The length requirements of State law for vehicles or combinations of vehicles, including
extensions over front and rear, do not apply: - ANSWER-within city limits.
The height from the ground for mounted reflectors must be at least: - ANSWER-24 inches.
When one vehicle is towing another, the distance between the two must not be greater than: -
ANSWER-15 feet.
The greatest length allowed by State law for a single motor vehicle other than a truck tractor is:
- ANSWER-45 feet.
Every farm tractor manufactured after January 1, 1972 complies with State lighting laws by: -
ANSWER-having two head lamps.
To find out the details about registering your particular vehicle you should consult: - ANSWER-
tax collector and assessor.
One purpose of requiring registration papers on trucks at all times is to show: - ANSWER-weight
of the truck empty and how much it is registered to haul.
Clearance lights are required by State law for trucks or buses if the width is: - ANSWER-80
inches or more.
When a load extends more than four feet over the rear of a vehicle, what color flag must be
attached to the extreme end of the extension if driving in the daytime? - ANSWER-red.
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, Texas CDL general knowledge exam
Lease agreements, when required, must be filed with: - ANSWER-the County Clerk.
The greatest height ordinarily allowed by State law for a vehicle including its load is: - ANSWER-
14 feet.
When it is necessary to place flares around a truck on a two-way road with a clear view, one
must be placed beside the truck, the other two must be place: - ANSWER-100 feet to the front
and rear of the vehicle.
When towing another vehicle with a chain or cable, what color flag must be attached to the
chain or cable? - ANSWER-white.
Unless exempt by law, all rented or leased commercial vehicles must: - ANSWER-have a sign on
each side showing for whom the vehicle is being operated.
The speed limit for a pickup truck with a manufacturer's rated carrying capacity of 2,000 pounds
or less on U.S. or State highways in the daytime is: - ANSWER-70 mph.
The color of clearance lamps on the front of a vehicle must be: - ANSWER-amber : )
When backing up a large truck you should: - ANSWER-have someone guide you.
Every trailer must have how many reflectors on the rear? - ANSWER-three
When turning right with a long vehicle or combination truck-trailer, if it is impossible to stay in
the proper lane, you should: - ANSWER-approach the corner about 4 feet away from the curb or
right edge of the roadway, then if necessary complete turn in center of street entered.
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, Texas CDL general knowledge exam
Turn signal indicators are required on all motor vehicles manufactured after the model year: -
ANSWER-1959.
No combination of vehicles other than a truck tractor-trailer combination may exceed: -
ANSWER-65 feet.
The load on a truck may not extend over the rear of the vehicle more than: - ANSWER-four feet.
All school buses, buses, taxis, and other vehicles hauling passengers for hire or lease must carry
a chemical type fire extinguisher of at least: - ANSWER-one quart capacity.
The greatest height ordinarily allowed by State law for a vehicle including its load is: - ANSWER-
14 feet.
Vehicles transporting loose material (sand, dirt, gravel, etc.) that is capable of spilling or blowing
from the vehicle must: - ANSWER-meet loading and/or covering regulations to prevent spilling
or blowing.
When one truck is following another truck or vehicle, it may keep far enough back to allow how
many vehicles to enter safely between them? - ANSWER-one vehicle.
The greatest weight allowed by State law for any vehicle including the load is: - ANSWER-80,000
pounds.
The top speed limit for heavy trucks on designated rural interstates in the daytime is: - ANSWER-
70 mph.
A slow-moving vehicle emblem must be displayed only by: - ANSWER-vehicles designed to be
operated at speeds of 25 mph or less.
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TEXAS CDL GENERAL KNOWLEDGE EXAM 2025, CDL TEST STUDY
GUIDE PDF, TEXAS COMMERCIAL DRIVER LICENSE QUESTIONS,
CDL PRACTICE TEST 2025, TEXAS DPS CDL PREP, VERIFIED CDL
ANSWERS TEXAS, CDL EXAM QUESTIONS AND ANSWERS
Which of the following vehicles must have mud flaps when operated on public roads? -
ANSWER-all vehicles with four or more tires on the rear axle except single truck tractors and
pole trailers.
The top speed limit for heavy trucks on designated rural interstates in the daytime is: - ANSWER-
70 mph.
Clearance lights on the front of a vehicle must be: - ANSWER-amber.
When a truck breaks down on the highway in the daytime the driver should set out: - ANSWER-
three red reflectors.
The greatest width allowed by State law for a truck including the load is: - ANSWER-102 inches
(8-1/2 feet).
Which of the following vehicles must have mud flaps when operated on public roads? -
ANSWER-all vehicles with four or more tires on the rear axle except single truck tractors and
pole trailers.
Which of the following vehicles are required by State law to stop at railroad grade crossings
outside city limits where no traffic control device is in operation? - ANSWER-buses carrying
passengers for hire.
1|Page
, Texas CDL general knowledge exam
Turn signal indicators are required on all motor vehicles manufactured after the model year: -
ANSWER-1959.
The length requirements of State law for vehicles or combinations of vehicles, including
extensions over front and rear, do not apply: - ANSWER-within city limits.
The height from the ground for mounted reflectors must be at least: - ANSWER-24 inches.
When one vehicle is towing another, the distance between the two must not be greater than: -
ANSWER-15 feet.
The greatest length allowed by State law for a single motor vehicle other than a truck tractor is:
- ANSWER-45 feet.
Every farm tractor manufactured after January 1, 1972 complies with State lighting laws by: -
ANSWER-having two head lamps.
To find out the details about registering your particular vehicle you should consult: - ANSWER-
tax collector and assessor.
One purpose of requiring registration papers on trucks at all times is to show: - ANSWER-weight
of the truck empty and how much it is registered to haul.
Clearance lights are required by State law for trucks or buses if the width is: - ANSWER-80
inches or more.
When a load extends more than four feet over the rear of a vehicle, what color flag must be
attached to the extreme end of the extension if driving in the daytime? - ANSWER-red.
2|Page
, Texas CDL general knowledge exam
Lease agreements, when required, must be filed with: - ANSWER-the County Clerk.
The greatest height ordinarily allowed by State law for a vehicle including its load is: - ANSWER-
14 feet.
When it is necessary to place flares around a truck on a two-way road with a clear view, one
must be placed beside the truck, the other two must be place: - ANSWER-100 feet to the front
and rear of the vehicle.
When towing another vehicle with a chain or cable, what color flag must be attached to the
chain or cable? - ANSWER-white.
Unless exempt by law, all rented or leased commercial vehicles must: - ANSWER-have a sign on
each side showing for whom the vehicle is being operated.
The speed limit for a pickup truck with a manufacturer's rated carrying capacity of 2,000 pounds
or less on U.S. or State highways in the daytime is: - ANSWER-70 mph.
The color of clearance lamps on the front of a vehicle must be: - ANSWER-amber : )
When backing up a large truck you should: - ANSWER-have someone guide you.
Every trailer must have how many reflectors on the rear? - ANSWER-three
When turning right with a long vehicle or combination truck-trailer, if it is impossible to stay in
the proper lane, you should: - ANSWER-approach the corner about 4 feet away from the curb or
right edge of the roadway, then if necessary complete turn in center of street entered.
3|Page
, Texas CDL general knowledge exam
Turn signal indicators are required on all motor vehicles manufactured after the model year: -
ANSWER-1959.
No combination of vehicles other than a truck tractor-trailer combination may exceed: -
ANSWER-65 feet.
The load on a truck may not extend over the rear of the vehicle more than: - ANSWER-four feet.
All school buses, buses, taxis, and other vehicles hauling passengers for hire or lease must carry
a chemical type fire extinguisher of at least: - ANSWER-one quart capacity.
The greatest height ordinarily allowed by State law for a vehicle including its load is: - ANSWER-
14 feet.
Vehicles transporting loose material (sand, dirt, gravel, etc.) that is capable of spilling or blowing
from the vehicle must: - ANSWER-meet loading and/or covering regulations to prevent spilling
or blowing.
When one truck is following another truck or vehicle, it may keep far enough back to allow how
many vehicles to enter safely between them? - ANSWER-one vehicle.
The greatest weight allowed by State law for any vehicle including the load is: - ANSWER-80,000
pounds.
The top speed limit for heavy trucks on designated rural interstates in the daytime is: - ANSWER-
70 mph.
A slow-moving vehicle emblem must be displayed only by: - ANSWER-vehicles designed to be
operated at speeds of 25 mph or less.
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