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Louisiana Class D “Chauffeur’s” License
Actual Exam Questions and Verified
Answers| (202 5 / 202 6 Latest Update)
QUESTION
the part of the air brake system which is operated by turning a quarter turn or by pulling a cable and which must be drained manually at the end of the day Answer: manual air tank drain
QUESTION
the part of the air brake system in which water and oil are automatically expelled Answer: automatice air tank drain
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the of the air brake system protects the tanks and the rest of the system from too much pressure. it is usually set at 150 psi. if it releases air, something is wrong Answer: safety valve
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the part of the air brake system tells you how much pressure is left in the air tanks Answer: supply pressure gauges
QUESTION
the shows you how much air pressure you are applying to the breaks Answer: application pressure gauge
QUESTION
if the air pressure in the tanks falls below , the low air pressure warning will come on. Answer: 60psi
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brakes are held back by air pressure and are the mechanical force which keeps the emergency and parking brakes in place Answer: spring brakes
QUESTION
in newer vehicles, you engage the parking breaks by using this knob Answer: diamond-shaped, yellow, push-pull knob
QUESTION
never push the break pedal down when the brakes are on Answer: spring breaks
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2 methods of emergency breaking Answer: controlled or stab
QUESTION
the type of emergency breaking in which you put on the brakes as hard as you can without locking the wheels or turning the steering wheel Answer: controlled braking
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the type of emergency braking in which you press the break pedal as hard as you can, let up when the wheels lock, and push on the brakes again when the vehicle starts rolling Answer: stab breaking
QUESTION
with air brakes it takes for the air to flow through the lines to the brakes Answer: 1/2 second or more
QUESTION
the equation which equals the total stopping distance for vehicles with air brakes Answer: perception distance + reaction distance + brake lag distance + effective braking distance
QUESTION
if the low air pressure warning for the air brake system comes on you should Answer: stop and safely park as soon as possible
QUESTION
brakes can fail or fade from caused by Answer: excessive heat caused by using them too much or improper adjustment
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any time you park you should use the parking brake except for these 2 exceptions Answer: the brakes are very hot or in the brakes are wet and the temperature is freezing
QUESTION
Maximum width for vehicles (Excluding Buses) Answer: 8 feet
QUESTION
a) Press the brake pedal as hard as you can. b) Release the brakes when the wheels lock up. c) As soon as the wheels start rolling, put on the brakes fully again Answer: Stab braking
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Brakes can fade or fail from excessive heat caused by and not relying on the effect or Answer: Using them too much, engine braking, improper adjustment
QUESTION
Maximum length for any single vehicle (Including Load) Answer: 40 feet
QUESTION
Any time you park, use the parking brakes unless:
- The brakes are
- The brakes are in freezing temperatures Answer: Very hot, very wet
QUESTION
Maximum length for truck-tractor and trailer combination Answer: 65 feet
QUESTION
Most common type of hitch
Answer: Ball and coupler
QUESTION
When securing loads contents must not be allowed to Answer: Drop, shift, leak or otherwise escape.
QUESTION
is important to make sure that the size of the ball and coupler match to prevent of the towed vehicle during transport Answer: Separation
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The load must be so the covering or load does not come loose, or in any manner become a hazard to other motorists Answer: Securely fastened
QUESTION
Make sure the hitch has provisions for the connection of or other approved safety devices. Answer: Safety Chains
QUESTION
12 Inches
QUESTION
Trailers are required to have , , , , and Answer: Taillights, brake lights, side marker lights, turn signals, side and rear reflectors
QUESTION
If a load extends four or more feet past the bed or body of any vehicle, at night, a must be attached to the extreme rear of the load and visible for at least 500 feet to the sides and rear Answer: Red light
QUESTION
When loading a trailer you want to balance weight from Answer: Side to side
QUESTION
If a load extends four or more feet past the bed or body of any vehicle, at night, a red light must be attached to the extreme rear of the load and visible for at least to the sides and rear. Answer: 500 feet
QUESTION
When loading a trailer you want to distribute cargo weight evenly along of the trailer
Answer: The length
QUESTION
Maximum speed for any vehicle in Louisiana is Answer: 70 mph
QUESTION
When loading a trailer you want to and all items to prevent them from moving or fall off during travel Answer: Secure, brace
QUESTION
When pulling or towing another motor vehicle the speed limit is Answer: 45 mph
QUESTION
When loading a trailer you should adjust of the tow vehicle/trailer connection Answer: The height
QUESTION
School buses are limited to when frequently stopping to load or unload children
QUESTION
You must stop within but not closer than from the nearest rail. Answer: 50 feet, 15 feet
QUESTION
Vehicles transporting passengers for hire must be equipped with at least a type fire extinguisher, completely filled and in working condition Answer: 2 - BC
QUESTION
Tow trucks must be equipped with at least one fire extinguisher capable of extinguishing flammable liquid fires, completely filled and in working condition Answer: 4 - BC
QUESTION
Motor vehicles transporting explosives must be equipped with at least one fire extinguisher with a rating of at least , completely filled and in working condition Answer: 10 - BC
QUESTION
Every truck must have a device this device to minimize the spray or splash of water or mud or loose road surface material to the rear Answer:
Mud flap
QUESTION
Freight carrying vehicles and passenger buses must carry three of these items Answer: Flares, electric red lanterns, or red portable reflectors
QUESTION
Freight carrying vehicles and passenger buses must carry two of these items Answer: 12 - inch square red cloth flags with standards
QUESTION
Trucks carrying explosives, flammable liquids, compressed gases, or using compressed gas as a fuel must use or only Answer: Red electric lanterns, red emergency reflectors
QUESTION
When the vehicle breaks down, one signal must be placed behind the vehicle and forward of the vehicle. A third signal must be on the traffic side of the truck to the front or rear Answer: 100 feet, 100 feet, 10 feet
QUESTION
QUESTION
If your brakes should fail on a level road, you should and use engine compression to slow down Answer: Downshift
QUESTION
Air brake systems are three braking systems combined: the brake system, the brake system, and the brake system Answer: Service, parking, emergency
QUESTION
brake system applies and releases the brakes when you use the brake pedal during normal driving Answer: Service
QUESTION
brake system applies and releases the parking brakes when you use the parking brake control Answer: Parking
QUESTION
brake system uses part of the service and parking brake's system to stop the vehicle in the event of a brake system failure Answer: Emergency
QUESTION
Pumps air into the air storage tanks (reservoirs) Answer: Air compressor
QUESTION
Controls when the air compressor will pump air into the air storage tanks Answer: Air compressor governor
QUESTION
Used to hold compressed air Answer: Air storage tanks
QUESTION
Operated by turning a quarter turn or by pulling a cable. You must drain the tanks yourself at the end of each day of driving Answer: Manual air tank drain
QUESTION
Holds emergency and parking brakes back by mechanical force Answer: Spring brakes
QUESTION
Used to engage the parking brakes in newer vehicles with air brakes Answer: Diamond shaped, yellow, pull-push control knob
QUESTION
Put on the brakes as hard as you can without locking the wheels (do not turn the steering wheel while doing this) Answer: Controlled braking
QUESTION
Class D license is for anyone driving a vehicle or combined set of vehicles in this weight range , as long as they are not carrying hazardous materials Answer: 10,001-26,001 pounds
QUESTION
A Class D license allows for a driver-for-fire to drive any vehicle fitting into the Class requirements
Answer: E
QUESTION
you must be years old to receive a class D license Answer: 17
QUESTION
the maximum width for all vehicles except buses is Answer: 8 feet
QUESTION
the maximum width for buses is Answer: 8ft 6in
QUESTION
the load may not project more than beyond the width of the body Answer: 6in
QUESTION
the maximum height for all vehicles is
