AZ CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST

21. Which of the following statements about driving in very hot weather is true?
You should inspect the tires every 2 hours or every 100 miles.
As the temperature of the tire increases, the air pressure of a tire decreases.
If a tire is too hot to touch, keep driving to cool it off.
22. Which of the following are possible causes of tire fires?
Loose fuel connections or under-inflated tires.
Under-inflated tires and dual tires that touch.
Over-inflated tires and short circuits.
23. To prevent drowsiness you should:
keep the cab warm.
drive with a passenger.
eat frequently.
24. Broken suspension parts:
hold up the vehicle and its load and keep the axles in place.
can be extremely dangerous.
should not be a concern unless you are driving on steep grades.
25. Which of the following statements about engine belts and driving in hot weather is true?
Loose belts will not turn the water pump and/or fan on properly.
You can check v-belt tightness by pressing on the belts.
All of the above.
26. If an aggressive driver confronts you, you should NOT:
make eye contact.
ignore gestures.
try to let them pass.
27. A driver waiting for too long at a stop could be a sign of:
an impaired driver.
a disabled driver.
a blind driver.
28. If you have a HazMat endorsement and renounce your U.S. citizenship:
you will lose your HazMat endorsement.
you may keep your endorsement until your next license renewal date.
you may transfer your endorsement to a trusted U.S. citizen.
29. On a level surface:
you should use wheel chocks to hold the vehicle.
wheel chocks make it easier for the vehicle to roll.
wheel chocks should not be used when the brakes are very hot.
30. What three things add up to total stopping distance?
Braking distance + stopping distance
Perception distance, reaction distance and braking distance
Reaction distance + braking distance
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