NH CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST

31. You must have at least ________ tread depth in every major groove on front tires.
1/16 inch
1/2 inch
4/32 inch
2/32 inch
32. If your drive wheels begin to spin, you should:
pump the brake pedal three times.
use the parking brake.
use the Anti-lock Braking System.
take your foot off the accelerator.
33. Whether or not you load and secure your load yourself, you are responsible for:
recognizing overloads and poorly balanced weight.
knowing your cargo is properly secured.
inspecting your cargo.
All of the above.
34. If you are driving a 30 foot vehicle at 35 mph, you should leave at least _______ between your vehicle and the vehicle in front of you.
4 seconds
3 seconds
2 seconds
1 seconds
35. Broken suspension parts:
should not be a concern unless you are driving on steep grades.
can be extremely dangerous.
hold up the vehicle and its load and keep the axles in place.
All of the above.
36. Which of the following may have reduced the clearances since the heights were posted at bridges and overpasses?
Traffic
Repaving of the road
Rain
The weight of a cargo
37. Retarders:
apply their braking power whenever you push on the accelerator.
help slow a vehicle and reduce brake wear.
help prevent accidents by applying extra braking power to the non-drive wheels.
All of the above.
38. When driving at night, you should dim your lights within ______ of an oncoming vehicle.
250 feet.
400 feet.
500 feet.
300 feet.
39. When should you be particularly careful about high winds?
When driving in winter
When emerging from a tunnel
When driving at night
When going downhill
40. During a pre-trip inspection, to check your lights you should:
with the engine running, put the vehicle in a forward gear and turn on the headlights.
check the yellow malfunction lamps on the instrument panel.
with the engine running, turn on the headlights and 4-way emergency flashers, and get out of the vehicle.
turn off the engine, turn on the headlights and 4-way emergency flashers, and get out of the vehicle.
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