CDL PRACTICE TEST (NM) - GENERAL KNOWLEDGE TEST

31. Which of these statements is correct?
Loose cargo that falls off a vehicle can cause traffic problems.
Loose cargo can hurt the driver during a quick stop.
All of the above.
32. You must have at least 4/32 inch tread depth in every major groove on front tires and at least ___ inch on other tires.
2/32
4/32
1/32
33. Retarders:
help slow a vehicle.
reduce the need for using your brakes.
All of the above.
34. Most heavy vehicles require ________ change gears.
double shifting
single clutching
double clutching
35. If the coolant container is not part of the pressurized system:
you can safely remove the cap and add coolant even when the engine is hot.
you should remove the container cap and wait until the system has cooled.
you should never remove the radiator cap or any part of the pressurized system until the system has cooled.
36. When driving on wet roads, you should reduce your speed by about:
one-half.
one-fifth.
one-third.
37. The spring brakes come on:
when main air pressure is lost.
when air pressure in both air brake systems rises to a value set by the manufacturer.
when you bring the vehicle to a complete stop right away.
38. Who is responsible for making sure the lights and reflectors are clean?
The driver
The shipper
The previous driver
39. If ABS is not working:
you should stay off the brake.
the brakes will lock up.
a yellow malfunction lamp will light up on the control panel.
40. If you double your speed, your braking distance will be:
4 times longer.
3 times longer.
8 times longer.
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