CDL PRACTICE TEST (NH) - GENERAL KNOWLEDGE TEST

41. Which of the following is a clue to a drunk driver?
Driving at a constant speed
Not changing lanes
Driving with the flow of traffic
Waiting too long at a stop
42. To use road speed to know when to switch gears you should:
learn what speeds each gear is good for.
learn the operating rpm range of your vehicle.
use the posted speed limit as a guide.
watch your tachometer, and shift up when your engine reaches the top of the range.
43. How far should you scan ahead when driving?
One block at lower speeds
A quarter of a mile at highway speeds
12-15 seconds
All of the above.
44. Drivers who must stop on a road or the shoulder of any road must put out their emergency warning devices within:
20 minutes
15 minutes
5 minutes
10 minutes
45. When you are driving in heavy traffic, the safest thing to do is to:
drive at the speed of other traffic (without going at an illegal or unsafe speed).
drive 10 mph below the speed limit.
drive 10 mph below the speed of other traffic.
drive at the posted speed limit.
46. What is countersteering?
Driving too fast for conditions.
Staying off the brake while steering to the right to avoid an accident.
Turning the steering wheel quickly the other way after steering in an emergency situation.
Locking your wheels while turning in an emergency situation.
47. When using a fire extinguisher, you should:
Aim at the base of the fire.
Keep as close to the fire as possible.
Aim at the flames.
All of the above.
48. To prevent fire, during the en route inspection you should check the tires, wheels, and truck body for signs of:
front-wheel skids.
ice.
heat.
a fire extinguisher.
49. Heights posted at bridges and overpasses:
can be incorrect.
are always accurate.
are always incorrect.
None of the above.
50. Warnings on low bridges or underpasses:
must be posted.
are often posted, but sometimes they are not.
are always posted.
None of the above.
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