AR CDL DOUBLES TRIPLES TEST - PRACTICE TEST
11.
Too much weight on the steering axle can cause:
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poor traction.
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better handling.
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hard steering and damage to the steering axle and tires.
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None of the above.
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12.
Which of these statements about brakes is true?
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The lighter the vehicle, the more heat the brakes absorb to stop it.
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To stop, the brake shoes and linings are pushed against the outside of the drum.
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Brake fade does not result from excessive heat.
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None of the above.
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13.
When inspecting the coupling, make sure the fifth-wheel jaws have closed around the:
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head of the kingpin.
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the electrical cord.
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shank of the kingpin.
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the brake camshaft.
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14.
Rims with welding repairs:
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can be used for tires in the front of the vehicle.
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are not safe.
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can be used for tires in the rear of the vehicle.
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are acceptable only when carrying a heavy load.
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15.
When parked on the side of the road, you should:
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use the 4-way emergency flashers.
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activate the right turn signal.
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flash your brake lights.
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turn off all lights.
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16.
The earliest way to recognize that your trailer has started to skid is:
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by checking your mirrors.
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by checking the jackknife sensor.
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by hearing squeaking noises from the wheels.
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by releasing the brakes.
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17.
Pre-trip inspections of doubles and triples should:
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take more time than inspecting straight trucks.
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be done once a week.
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take less time than inspecting straight trucks.
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be done by the shipper.
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18.
If you experience a loss of hydraulic pressure, you should do all of the following except:
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Downshift
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Pump the brakes
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Put the transmission in Neutral
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Use the parking brake
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19.
If your vehicle is equipped with air brakes, loss of air pressure in the emergency line will cause:
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the vehicle to slide back and forth.
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the trailer emergency brakes to come on.
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the trailer supply valve to open.
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the springs to put on the brakes.
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20.
If you hear a loud loud "bang" and the steering feels "heavy", you should:
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pump the brakes until the vehicle has slowed down.
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check your rearview mirrors to see if you have a flat tire.
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hold the steering wheel firmly and stay off the brake.
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brake hard and pull off the road.
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