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CDL PRACTICE TEST - GENERAL KNOWLEDGE (UTAH)

11. Why should you put the starter switch key in your pocket during the pre-trip inspection?
So you don't lose it.
You will need it to inspect the trailer.
So no one moves the vehicle while you are inspecting underneath it.
All of the above.
12. When driving in a construction zone, if a construction worker is near the road, you should:
speed up.
maintain a constant speed.
further reduce your speed.
come to a complete stop.
13. Service lines are often coded with the color ____ to keep from getting them mixed up with the emergency line.
yellow
orange
red
blue
14. When preparing to make a right turn, you should NOT turn wide to the left as you start the turn. Why?
It makes the turn harder.
A following driver may try to pass you on the left.
A following driver may try to pass you on the right.
Turning wide to the left can cause your vehicle to tilt.
15. Warnings on low bridges or underpasses:
must be posted.
are always posted.
are often posted, but sometimes they are not.
None of the above.
16. When the temperature drops, which of the following surfaces will become icy first?
Off-ramps
Curves
Underpasses
Bridges
17. If a trailer does not have spring brakes, to keep the trailer from moving you should:
park on a slight decline.
close the brake valve.
use wheel chocks.
use the service brakes.
18. If your vehicle gets stuck on a railroad track, you should:
stay in the vehicle and call your dispatcher or supervisor for instructions.
try to re-start the vehicle.
get out of the vehicle and walk as far away from the tracks as possible.
stay in the vehicle and call for help.
19. What is a hazard?
The most common cause of hydroplaning.
Any road condition or other road user that is a possible danger.
The driver is uncertain about taking the off ramp.
Something you must stop for.
20. Escape ramps:
cannot be used by certain types of heavy vehicles.
should not be used unless you have already tried all other possible ways to save your vehicle after brake failure.
are designed to stop runaway vehicles safely.
All of the above.
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