AZ CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST

11. To stay alert while driving, you should:
never open the window or use the air conditioner.
rely on caffeine.
avoid medications that can cause drowsiness.
12. Use of drugs can lead to traffic accidents resulting in:
Death
Injury
All of the above.
13. Drivers should not assume that the heights posted at bridges and overpasses are correct. Why?
Some roads can cause a vehicle to tilt.
The weight of a cargo van changes its height.
Packed snow or repaving may have reduced the clearances since the heights were posted.
14. The Gross Vehicle Weight Rating (GVWR) is:
the value specified by the manufacturer as the loaded weight of a single vehicle.
the value specified by the manufacturer as the loaded weight of a combination vehicle.
the value specified by the manufacturer as the loaded weight of a vehicle, including cargo and trailers.
15. When the road is very slippery, you should:
downshift to stop.
stop at the first safe place.
use the parking brake instead of the service brake.
16. Which of the following is checked in a pre-trip inspection?
Wiper blades
Steering wheel
All of the above.
17. As your blood alcohol concentration (BAC) builds up, which of the following is affected?
Muscle control
Vision
All of the above.
18. The application pressure gauge:
shows how much air pressure is being applied to the brakes.
protects the tank and the rest of the system from too much pressure.
tells you how much pressure is in the air tanks.
19. An alcohol evaporator is important during:
hot weather.
dry weather.
cold weather.
20. You should avoid driving through flowing water of deep puddles if possible. If not, you should:
gently apply the brakes, increase engine rpm and cross the water while keeping light pressure on the brakes.
press the accelerator and increase the engine and gear speed to the rpm required by road conditions.
set out reflective triangles to warn other traffic.
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