MA CDL AIR BRAKES PRACTICE TEST
11.
At 55 mph, the total stopping distance for vehicles with air brake systems traveling in ideal conditions is:
|
over 250 feet.
|
|
|
over 450 feet.
|
|
|
less than 250 feet.
|
|
|
less than 150 feet.
|
12.
If the low pressure warning signal doesn't work:
|
this could cause sudden emergency braking in a single-circuit air system.
|
|
|
you could lose air pressure and you would know it.
|
|
|
in dual systems the stopping distance will be decreased.
|
|
|
None of the above.
|
13.
To prevent drowsiness you should:
|
schedule trips for the middle of the night.
|
|
|
never drive with a passenger.
|
|
|
avoid exercise to save more energy.
|
|
|
get adequate sleep before a trip.
|
14.
It is not safe to drive a vehicle that has brake drums with cracks that are longer than ___ the width of the friction area.
|
1/2
|
|
|
9/10
|
|
|
1/4
|
|
|
3/5
|
15.
The ______ puts alcohol into the air system.
|
alcohol storage tank
|
|
|
alcohol tank drains
|
|
|
alcohol evaporator
|
|
|
air tank drains
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More