CDL AIR BRAKES PRACTICE TEST - INDIANA

6. If your vehicle catches fire, you should pull over:
near other vehicles.
near trees.
in an open area.
at a service station.
7. Service brakes should:
only be checked by a mechanic.
be checked before each trip.
always be checked before applying the brakes.
All of the above.
8. After supplying air to the trailer brake system, you should check the brake system for crossed air lines by:
shutting the engine off so you can hear the brakes.
checking the air brake system pressure gauge for signs of major air loss.
applying and releasing the trailer brakes and listening for the sound of trailer brakes.
All of the above.
9. If the air tanks are not drained:
the air pressure in the tanks is reduced.
your speed must be reduced to 5 MPH below your “safe” speed.
the spring brakes will come on.
the water can freeze in cold weather and cause brake failure.
10. Which of the following is not a way to know when to change gears?
Use engine speed (rpm)
Check that the pressure gauge shows normal oil pressure
Use road speed (mph)
Watch your tachometer
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