CDL GENERAL KNOWLEDGE TEST (MN) - PRACTICE TEST

21. If your vehicle is equipped with a front brake limiting valve, to ensure normal stopping power make sure the control is:
in the "off" position.
in the "neutral" position.
in the "normal" position.
in the "slippery" position.
22. Doing a vehicle inspection is very important. Why?
Not doing it could cost time and dollars, or even worse, an accident.
Federal and state regulations require that drivers inspect their vehicle.
A defect found during an inspection could save you problems later.
All of the above.
23. Dual tires:
are dangerous.
should not come in contact with each other.
should come in contact with each other whenever possible.
should always come in contact with each other.
24. Water in the brakes:
reduces wheel lockups.
can increase braking power.
can cause the brakes to apply unevenly.
All of the above.
25. When drivers make a turn they should:
look behind the vehicle.
look far ahead.
look in the direction they are going to turn.
look in the opposite direction of the turn.
26. Class A:B:C fire extinguishers are designed to work on:
burning wood, paper, and cloth.
electrical fires.
burning liquids.
All of the above.
27. When driving at night you should dim your lights when following another vehicle within:
500 feet.
50 feet.
100 feet.
1 mile.
28. Most hydraulic brake failures occur for one of two reasons, one of which is:
loss of hydraulic pressure.
relying too much on the engine braking effect.
driving in cold weather.
excessive downshifting.
29. Service brakes should:
only be checked by a mechanic.
always be checked before applying the brakes.
be checked before each trip.
All of the above.
30. To avoid becoming a distracted driver you should:
not engage in complex conversations with others.
not turn off all communication devices.
adjust all vehicle controls and mirrors while driving.
eat and drink while you drive.
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