FREE KY CDL Doubles/Triples Test 2024 (Practice Test)

1. You should always try to back toward the driver's side because:

you can watch the rear of your vehicle out the side window.
backing toward the left side is more dangerous.
you can more easily correct any steering errors.
None of the above.

2. Brake lag is:

the distance your vehicle will travel, in ideal conditions, while you are braking.
the amount of air pressure required to stop the vehicle.
the time required for the air brakes to work after the brake pedal is pushed.
the distance your vehicle will continue to travel, in ideal conditions, before you hit the brakes.

3. At dawn, dusk, in rain or snow, to make yourself easier to see you should:

4. Emergency brakes are:

required on all vehicles.
not required on doubles.
not required on buses.
not required on commercial vehicles with air brakes.

5. When checking the lights before driving:

you should check them from inside the vehicle.
make sure the parking brake is not set.
the engine must be running.
you should turn off the engine.

6. When the temperature drops:

bridges usually freeze after other parts of the roadway.
bridges will not freeze.
bridges will freeze before the road will.
None of the above.

7. When inspecting the coupling, make sure the fifth-wheel jaws have closed around the:

8. Which of the following is not a sign of fatigue?

9. The trolley valve should be used only:

10. When coupling, you should:

make sure the trailer wheels are not chocked.
make sure the trailer kingpin is bent.
make sure the sliding fifth-wheel is locked.
be aware that wrong coupling and uncoupling can be very dangerous.

DOUBLES TRIPLES TEST KY - CDL PRACTICE TEST