MT CDL DOUBLES TRIPLES PRACTICE TEST

11. If your ABS fails:
the first step is to get the vehicle off the road and stop.
you will have no brake function, and could lose control.
you will still have normal brake functions.
your tires might grab unexpectedly and you could lose control.
12. If your ABS malfunctions:
the service brake will not work.
the parking brakes will not work.
you still have normal brake functions.
you should immediately come to a complete stop.
13. Enough tread is especially important in winter conditions. You need at least ________ tread depth on steering axle tires.
6/24 inch
8/32 inch
4/32 inch
2/8 inch
14. To know if your vehicle is equipped with ABS, look for:
the ABS shipping paper.
the ABS logo on the steering wheel.
a yellow ABS malfunction lamps on the instrument panel.
an ABS placard.
15. You hear a loud "bang" which sounds like a tire blowout. You should:
keep driving as normal.
assume you have a tire failure.
check the tires at the next stop.
inspect your tires with your mirrors.
16. During a walk around inspection of a combination vehicle, drivers should check that:
the glide plate is securely mounted to the trailer frame.
the locking jaws are around the shank.
all locking pins are present and locked in place.
All of the above.
17. Regardless of its size, cargo should have at least ___ tie-downs.
1
2
4
3
18. The tractor protection valve:
supplies air to the trailer air tanks.
works the trailer brakes.
controls the emergency brakes on combination vehicles.
keeps air in the tractor brake system should the trailer break away or develop a bad leak.
19. The application pressure gauge:
shows how much air pressure is being applied to the brakes.
stops the compressor from pumping air.
tells you how much pressure is in the air tanks.
protects the tank and the rest of the system from too much pressure.
20. At dawn, dusk, in rain or snow, to make yourself easier to see you should:
use the low beams.
use the parking lights.
use the emergency flashers.
use the high beams.
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