CDL PRACTICE TEST - GENERAL KNOWLEDGE (MAINE)

41. When driving through a large puddle or flowing water, you should:
slow down.
increase engine rpm.
All of the above.
42. Broken suspension parts:
can be extremely dangerous.
hold up the vehicle and its load and keep the axles in place.
should not be a concern unless you are driving on steep grades.
43. _________ helps coordinate emergency response to chemical hazards.
The Federal Transportation Organization
The National Chemical Network
The National Response Center
44. Enough tread is especially important in winter conditions. You need at least ________ tread depth on steering axle tires.
4/32 inch
6/24 inch
2/8 inch
45. When making a turn, you should cancel your turn signal:
once the rear end of your cab has cleared the turn.
once you have completed the turn.
once more than half of your vehicle is round the turn.
46. Distracted driving can cause accidents. To avoid distractions while on the road, you should:
plan your route while driving only if there are no cars around you.
turn off all communication devices.
limit the use of your mobile phone to the first hour of driving.
47. If your vehicle is hydroplaning, you should:
accelerate to get through the water as quickly as possible.
use the brakes to slow down.
release the accelerator and push in the clutch.
48. Transporting hanging meat requires special attention. Why?
Because hanging meat can be an unstable load with a high center of gravity.
Because refrigerated trucks have less traction.
Because you have to drive fast to get it delivered fresh.
49. Which of the following statements about tire failure is true?
If the steering feels heavy, it may be a sign one of the rear tires has failed.
Any time you hear a tire blow, you would be safest to assume it is not yours.
It can take a few seconds for your vehicle to react, and you might think it was some other vehicle.
50. Hydroplaning:
can occur at speeds as low as 30 mph.
only happens when tire pressure is higher than normal.
only occurs at extremely high speeds.
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