COMBINATION TEST INDIANA - PRACTICE TEST

11. Emergency brakes must be must be held on by:
water.
air pressure.
mechanical force.
the locking mechanism.
12. What should you do if your vehicle gets stuck on the railroad tracks?
Stay inside the vehicle and call 911.
Turn on the emergency flashers and call 911.
Call 911, then get out of the vehicle and away from the tracks.
Get out of the vehicle and away from the tracks as quickly as possible, then call 911.
13. If you have a manual transmission, when stopping don't _______ until the engine rpm is down close to idle.
place the transmission in park
apply the brakes
shift to second gear
push the clutch in
14. When inspecting the cargo, make sure it is:
secured properly for the first 50 miles after beginning a trip.
piled up.
not overloaded.
All of the above.
15. If driving a new vehicle, you should familiarize yourself with the controls and equipment:
within the first 50 miles.
before you start driving.
after pulling into a service station.
as you drive.
16. You are coupling a tractor to a semi-trailer. You have backed up but are not yet under the trailer. Before backing under the semi-trailer, you should:
begin raising the landing gear.
connect the electrical cord and check the air lines.
remove the wheel chocks.
supply air to the trailer system and lock the trailer brakes.
17. When driving in very hot weather, the heat will increase the chances of:
suspension system defects.
tire failure.
ABS malfunction.
loss of hydraulic pressure.
18. Which of the following will NOT help you prevent rollover?
Using the controlled braking method.
Keeping the cargo as close to the ground as possible.
Driving slowly around turns.
All of the above.
19. When checking the lights before driving:
the engine must be running.
make sure the parking brake is not set.
you should turn off the engine.
you should check them from inside the vehicle.
20. When parking a trailer without spring brakes, it is very important for safety that you use wheel chocks. Why?
The air could leak out of the trailer air tank, releasing its emergency brakes.
if you don't use wheel chocks, supply air will be sent to the service line instead of going to charge the trailer air tanks.
You may not notice a major leak in the service line until you try to put the brakes on.
None of the above.
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