MA CDL PRACTICE TEST - GENERAL KNOWLEDGE

21. Distracted driving can cause collisions. Which of the following can distract your attention while you are driving?
Listening to music.
Talking to passengers.
Driving below the speed limit.
All of the above.
22. To prevent your vehicle from rolling back when you start you should:
partly engage the clutch before you take your right foot off the brake.
partly take your right foot off the brake before you engage the clutch.
put the transmission in Neutral.
release the parking brake, then apply enough engine power to keep from rolling back.
23. You should schedule trips for:
any time that fits your schedule.
the middle of the day.
the hours you are normally awake.
the middle of the night.
24. Antilock brakes:
decrease your stopping distance.
let you drive faster.
help you stop faster.
None of the above.
25. Which of the following is not a type of retarder?
Hydraulic
Pressure
Exhaust
Electric
26. Before entering a curve, you should:
put the gearshift in Neutral (or "Park", if automatic).
upshift.
downshift.
maintain your speed.
27. Broken suspension parts:
should not be a concern unless you are driving on steep grades.
hold up the vehicle and its load and keep the axles in place.
can be extremely dangerous.
All of the above.
28. Weight that is loaded so there is a high center of gravity:
reduces the chance that the load will shift to the side or fall off.
causes greater chance of rollover.
makes a vehicle easier to handle.
All of the above.
29. To make the brakes work, air brakes use:
carbon monoxide.
nitrogen.
hydraulic air.
compressed air.
30. With a dual air brake system:
each system shares the same lines and hoses.
one system is the main braking system while the other is a back-up system.
each system shares air tanks.
each system has its own air tanks, hoses and lines.
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