NE CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST

41. Which of these is NOT a thing to do when caring for the injured at the scene of a crash?
Move a severely injured person if the danger of fire or passing traffic makes it necessary.
Stop heavy bleeding by applying direct pressure to the wound.
Keep the injured persons cool.
If a qualified person is helping the injured, stay out of the way unless asked to assist.
42. Right after it starts to rain, the road is very slippery. Why?
Because black ice may form on the road.
Because rain is very slippery.
Because the water mixes with oil left on the road by vehicles.
None of the above.
43. If you must stop on or by a one-way or divided highway, where should you place the three reflective triangles?
10 feet, 100 feet, and 200 feet in front of the vehicle.
10 feet and 100 feet toward the approaching traffic, and 200 feet in front of the vehicle.
100 feet and 200 feet toward the approaching traffic, and 10 feet in front of the vehicle.
10 feet, 100 feet, and 200 feet toward the approaching traffic.
44. When backing, it is important to use a helper whenever possible. Why?
Because you cannot see everything behind your vehicle.
All the above.
To make sure you don't damage your truck.
Because it's required by law.
45. Too much weight on the steering axle can cause:
better handling.
hard steering and damage to the steering axle and tires.
poor traction.
None of the above.
46. When passing a vehicle, you should NOT:
drive carefully enough to avoid an accident.
assume the other driver does not see you.
at night, flash your lights from low to high beam and back.
keep blowing your horn while passing.
47. Letting air out of hot tires:
should not be done, because the pressure will be too low when the tires cool off.
will cool the tires down.
will help relieve the extra pressure.
will have no effect on the tires.
48. The best way to recognize that your trailer has started to skid is:
by recognizing tire failure.
by feeling the brakes come on.
by opening the window and feeling the front of the mirror.
by seeing it in your mirrors.
49. If your brakes fail on a steep mountain downgrade, you should:
decide what to do as soon as you know your brakes do not work.
set the parking brake and park in an open area.
stay on the road and keep looking for the next available escape ramp.
slow down until your vehicle comes to a complete stop.
50. If the safety relief valve in the air brake system releases air:
this will supply more power to the brakes.
this will supply more power to the drive wheels.
something is wrong.
the valve is fully operational.
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