CDL GENERAL KNOWLEDGE TEST (WYOMING) - PRACTICE TEST

41. In some states, move-over laws require drivers to:
submit to a chemical test to determine their BAC when requested by a peace officer.
obey the directions given by police officers at railroad crossings.
slow and change lanes when approaching a roadside incident.
All of the above.
42. What is a common cause of tire fires?
Loose lug nuts
Duals that touch
Cold tires
All of the above.
43. If stopped on a hill, how can you start moving without rolling back?
Partly engage the clutch before you take your right foot off the brake, put on the parking brake if necessary.
Press on the gas pedal, even if you have to roll back a little.
Release the parking brake before you have applied enough engine power to keep from rolling back.
None of the above.
44. As part of your pre-trip inspection, make sure:
your cargo does not obscure your view.
the vehicle is not overloaded.
the cargo is balanced properly.
All of the above.
45. Before you back into an area, you should __________ overhanging hazards like trees, branches or electric wires.
check your mirrors to be aware of
look out of the windows for
ask someone else to check for
get out of the vehicle and check for
46. What should you do if your vehicle starts hydroplaning?
Accelerate slightly, then push in the clutch to slow down.
Release the accelerator and push in the clutch to let the wheels turn freely.
Leave the road completely.
Apply the brakes and countersteer to regain control of the vehicle.
47. Which of the following is not a type of retarder?
Pressure
Exhaust
Hydraulic
Electric
48. What is countersteering?
Staying off the brake while steering to the right to avoid an accident.
Driving too fast for conditions.
Locking your wheels while turning in an emergency situation.
Turning the steering wheel quickly the other way after steering in an emergency situation.
49. Which of these is a possible consequence of forcing an automatic transmission into a lower gear at high speed?
Loss of all engine braking effect
Loss of hydraulic pressure
Loss of steering control
All of the above.
50. Do NOT use water on a _______ fire.
gasoline
wood
paper
cloth
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