Texas CDL Special Requirements Permit Test

Questions and Answers

What is the color of the clearance lamps on the front of a vehicle?

Red

Blue

Green

Amber (correct)

When backing a large truck you should?

Have someone guide you

How many reflectors must every trailer have on the rear?

Two

When turning right with a long vehicle or truck-trailer, where should you approach the corner?

About 4 feet from the curb or right edge of the roadway Signup and view all the answers

Motor vehicles must have turn indicator lamps if?

The body or load extends 24 inches or more to the left of the corner Signup and view all the answers

What is the greatest length allowed by state law for any combination truck or trailer?

65 feet Signup and view all the answers

What is the youngest age for licensing commercial operators?

18 years Signup and view all the answers

What is the minimum capacity for a chemical type fire extinguisher that must be carried in school buses and other vehicles transporting passengers for hire?

One quart Signup and view all the answers

Every bus or truck must have how many stop lights on the rear?

Two Signup and view all the answers

The number of trailers that may be pulled by one vehicle on the open highway is determined by?

Length limits Signup and view all the answers

Which vehicles must have mud flaps when operated on public roads?

Vehicles with four or more tires on the rear axle Signup and view all the answers

What is the top speed limit for heavy trucks on the open highway in the daytime?

60 mph Signup and view all the answers

Clearance lights on the front of a vehicle must be?

Amber Signup and view all the answers

What should a driver do when a truck breaks down on a highway in the daytime?

Set out red triangles Signup and view all the answers

What is the greatest width allowed by state law for a truck including the load?

102 inches (8 1/2 feet) Signup and view all the answers

Which vehicles are required by state law to stop at railroad grade crossings when no traffic control device is in operation?

Buses carrying passengers for hire Signup and view all the answers

Turn indicators are required on motor vehicles when the body or load extends how many inches to the left of the center of the steering wheel?

24 inches Signup and view all the answers

The length requirements for vehicles, including extensions over front and rear do not apply?

Within city limits Signup and view all the answers

What is the visibility requirement for clearance lights under normal atmospheric conditions?

900 ft Signup and view all the answers

When one vehicle is towing another, the distance between them must not be greater than?

15 feet Signup and view all the answers

What must animal-drawn vehicles or farm tractors have when operated on a highway at night?

A white flag on the front and two red lights on the rear Signup and view all the answers

To find out the weight limit for your particular vehicle, you should consult?

License and weight patrolman Signup and view all the answers

A city or county employee driving a city or county owned commercial vehicle while on official duty is required to have?

A commercial operators license Signup and view all the answers

Clearance lights are required by state law for trucks or buses if the width is?

80 inches or more Signup and view all the answers

What color flag must be attached to the extreme end of a load extending 4 feet or more over the rear of a vehicle if driving in the daytime?

Red Signup and view all the answers

The lease agreement for a commercial vehicle leased to another for operation must be filed with?

The Department of Public Safety Signup and view all the answers

School bus drivers must be at least?

18 years old Signup and view all the answers

When flares are necessary around a truck, one must be placed beside it, with the other two placed?

100 feet to the front and rear of the vehicle Signup and view all the answers

What color flag must be attached to the chain when towing another vehicle?

White Signup and view all the answers

Unless exempt by law, all rented or leased commercial vehicles must?

Have a sign on each side showing for whom the vehicle is being operated Signup and view all the answers

What is the top speed limit for a pickup truck on U.S. or state highways in the daytime?

70 mph Signup and view all the answers

When going downhill with a heavy vehicle, it is unlawful to?

Coast Signup and view all the answers

The first thing the driver of a disabled truck or bus should do is?

Set out flares, fuses, or reflectors Signup and view all the answers

Trailers and semi-trailers must have brakes that can be applied by the driver when the gross weight reaches?

4500 pounds Signup and view all the answers

Why are registration papers required for trucks at all times?

To show weight of truck empty and how much it is registered to haul Signup and view all the answers

Which vehicle is required by state law to carry a chemical type fire extinguisher?

Taxicab Signup and view all the answers

It is unlawful to operate any motor vehicle on a highway with?

Flanges or lugs on wheels Signup and view all the answers

It is unlawful for the driver of which motor vehicle to change gears while crossing the tracks of an uncontrolled railroad grade crossing?

Motor bus Signup and view all the answers

What color must clearance lamps mounted on the rear or on the side near the rear of a vehicle be?

Red Signup and view all the answers

What is the greatest length allowed by state law for any combination truck and trailer?

65 feet Signup and view all the answers

What is the top speed limit for heavy trucks on the open highway at night?

55 mph Signup and view all the answers

What is the greatest height allowed by state law for a vehicle including its load?

14 feet Signup and view all the answers

Before going down a steep grade with a heavy vehicle you should?

Shift to a lower gear Signup and view all the answers

When one truck is following another, how far back must it keep?

Far enough back for one vehicle to enter safely between them Signup and view all the answers

What is the greatest weight allowed by state law for any vehicle carrying a load?

80,000 pounds Signup and view all the answers

To legally drive a taxicab for hauling passengers for hire or fare, the driver must hold a chauffeur's license and be at least?

18 years of age Signup and view all the answers

Commercial operators have?

More responsibility than the ordinary driver Signup and view all the answers

What is the top speed limit for motor buses on U.S. or state highways at night?

65 mph Signup and view all the answers

Clearance lights are required by law for trucks or buses if the width is?

80 inches Signup and view all the answers

Hazard warning lights must be activated by a truck or bus when it is parked on a roadway if it is?

80 inches more in width or 30 feet or more in overall length Signup and view all the answers

Which of the following vehicles are not required to have mud flaps?

Pole trailers Signup and view all the answers

The greatest length allowed by state law for a single vehicle is?

45 feet Signup and view all the answers

Drivers of heavy trucks must have in their possession?

Commercial or chauffeur's license and registration papers for the truck Signup and view all the answers

The number of trailers that may ordinarily be pulled by one vehicle on the open highway is determined by?

Length limits Signup and view all the answers

It is unlawful for the driver of which motor vehicle to change gears while crossing the tracks of an uncontrolled railroad grade crossing outside a business or residential district?

Motor bus Signup and view all the answers

When mud flaps are required on trucks or trailers, they must reach how close to the surface?

8 inches Signup and view all the answers

What is the top speed for heavy trucks on the open highway during daylight?

60 mph Signup and view all the answers

Unless by special permission, no vehicle may carry a load extending more than?

3 feet beyond the front Signup and view all the answers

Vehicles and trailers with metal tires must obtain a special permit if they weigh?

5,000 pounds Signup and view all the answers

Unless by special permission, no vehicle may carry a load extending more than?

4 feet beyond the rear Signup and view all the answers

When transporting loose materials, the top of the load must be covered securely to prevent escape of materials by?

Canvas or tarpaulin Signup and view all the answers

When operating in a truck tractor and semi-trailer combination, the total length may not exceed?

59 feet Signup and view all the answers

The emblem for those slow-moving vehicles designed to operate at a max speed of?

25 mph or less Signup and view all the answers

In addition to hazard warning lights, every farm tractor and self-propelled unit of farm equipment manufactured after January 1, 1972 must have?

Two head lamps, one tail light, and two red reflectors Signup and view all the answers

You may be required to unload to the limit required by law if the gross weight of your vehicle exceeds the max gross weight allowed by law and a tolerance of?

5% Signup and view all the answers

Trucks manufactured prior to 1960 are required to at least have?

One tail light Signup and view all the answers

Every motor vehicle, trailer, semi-trailer, pole trailer, and combination of vehicles equipped with brakes must have a braking system arranged that brakes are engaged by?

One control device Signup and view all the answers

Surge or intra brake systems may be used on trailers and semi-trailers with a gross weight of?

15,000 pounds or less Signup and view all the answers

Generally, if the trailer and the combination weigh 3,000 pounds or less, the combination must be able to stop within how many feet when traveling at 20 mph?

40 feet Signup and view all the answers

On vehicles requiring reflectors, these reflectors must be mounted not less than how many inches or more than?

24 inches or more than 60 inches in height above ground Signup and view all the answers

A vehicle in which explosives are hauled meets a requirement of state law if?

A red flag 12 inches square is on the rear Signup and view all the answers

What is the minimum height from the ground for mounted reflectors?

24 inches Signup and view all the answers

Study Notes

Vehicle Requirements and Regulations

Clearance lamps on the front of a vehicle must be amber.
Every trailer requires two reflectors on the rear for visibility.
Truck operators must have someone guide them when reversing large vehicles.
Mud flaps are mandatory for all vehicles with four or more rear tires except single truck trailers or pole trailers.

Vehicle Specifications

Maximum length allowed for a combination truck or trailer is 65 feet.
Maximum width for trucks including loads is 102 inches (8 1/2 feet).
Maximum height for vehicles, including loads, is 14 feet.
Maximum weight allowed for vehicles carrying loads is 80,000 pounds.
Distance between vehicles when towing should not exceed 15 feet.

Licensing and Age Requirements

Minimum age for licensing commercial operators is 18 years.
School bus drivers must also be at least 18 years of age.
Taxicab operators need to hold a chauffeur’s license and be 18 or older.

Lighting and Signaling

Motor vehicles must have turn indicator lamps if the body extends 24 inches left of the steering wheel’s center.
Hazard warning lights must be activated by trucks, buses, or trailers parked on roadways if they are 80 inches wide or 30 feet long.
Clearance lights must be visible for 900 feet under normal atmospheric conditions.

Safety and Incident Protocols

In case of breakdowns during the day, drivers should set out red triangles to alert other road users.
When towing another vehicle, a white flag must be attached to the towing chain.
If a load extends 4 feet or more beyond the rear, a red flag must be attached during the day.

Operational Guidelines

Heavy trucks are prohibited from coasting when going downhill.
Before descending a steep grade, shift to a lower gear for control.
Commercial operators hold more responsibilities than ordinary drivers regarding vehicle operation and compliance.

Special Regulations

Vehicles or trailers with metal tires exceeding a weight of 5,000 pounds require special permits.
Towed vehicles need to comply with reflector height regulations, which must be between 24 inches to 60 inches above the ground.
Trucks manufactured before 1960 must have at least one tail light for safety.

Equipment Requirements

All school buses, taxis, and vehicles for hire must carry a chemical fire extinguisher with at least a one-quart capacity.
Emergency lighting must comply with standards, including having two headlamps and at least one tail light for farm machinery produced after January 1, 1972.

Load Management

Materials transported in loose form must be securely covered to prevent spillage.
The top speed for heavy trucks on open highways during the day is 60 mph, and at night, it drops to 55 mph.
The speed limit for a pickup truck is 70 mph on U.S. or state highways in the daytime.

Reflector Information

Vehicles are required to have reflectors mounted between 24 to 60 inches off the ground to ensure visibility to other drivers.
Reflectors must be mounted such that they don’t obstruct the driver's line of sight.

Additional Notes

When transporting explosives, a required red flag must be displayed on the rear of the vehicle.
Vehicles extending beyond length limits are subject to specific state laws, which generally do not apply within city limits.

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Description

Test your knowledge on special requirements for the Texas CDL permit with these informative flashcards. This quiz covers crucial information about vehicle signals, backing techniques, and trailer regulations that every driver must know. Prepare effectively for your permit test with this comprehensive review.