CDL PRACTICE TEST - GENERAL KNOWLEDGE (MASSACHUSETTS)

21. If your trucks has a high center of gravity, which of the following is true for curves?
You should slow down, as your truck can roll over at the posted speed limit for the curve.
You should travel at the posted speed limit.
Reduce your speed to a crawl.
None of the above.
22. If you swing wide to the left before turning right:
another driver may try to pass you on the left.
you may damage the service brakes.
another driver may try to pass you on the right.
None of the above.
23. To maintain alertness while driving, you should:
avoid short breaks and keep the window open.
keep cool by opening the window while eating heavy foods.
take periodic breaks.
rely on caffeine.
24. If your trailer starts to skid, you should:
steer in the opposite direction.
release the brakes.
pump the brakes.
lock the brakes.
25. How can you tell if your vehicle is equipped with ABS?
Trailers will have yellow ABS malfunction lamps on the left side.
Look under the vehicle for the wheel speed sensor wires coming from the back of the brakes.
Look for yellow ABS malfunction lamps on the instrument panel.
All of the above.
26. Objects that have fallen on the road:
can damage electrical and brake lines.
can be a danger to your tires and wheel rims.
can be hazards.
All of the above.
27. If you are traveling at 55 mph in a 30 foot vehicle, how many seconds of following distance should you have?
5 seconds
2 seconds
4 seconds
3 seconds
28. Use of drugs can lead to traffic accidents resulting in:
Death
Injury
Property damage
All of the above.
29. ABS helps you:
stop faster.
brake harder.
drive faster.
None of the above.
30. Dry bulk tanks require special care because:
they have a low center of gravity.
they have a high center of gravity.
are heavier than other CMVs.
take up more space than other CMVs.
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