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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Massachusetts CDL combination test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The test covers the combination vehicles section of the Massachusetts CDL Manual. Take this practice test now to prepare for the actual MA CDL combination test!
1. You have uncoupled a trailer and want to inspect the landing gear. The tractor should be positioned:
completely clear of the trailer.
with the tractor frame above the trailer.
with the tractor frame under the trailer.
None of the above.
2. _________ rigs are much more likely to roll over in an accident than _________ rigs.
Empty ; overloaded
Fully loaded ; empty
Fully loaded ; overloaded
Empty ; fully loaded
3. The best way to recognize that your trailer has started to skid is:
by recognizing tire failure.
by opening the window and feeling the front of the mirror.
by seeing it in your mirrors.
by feeling the brakes come on.
4. Tar in the road pavement rising to the road surface in very hot weather:
is very sticky and will slow down your vehicle.
causes the road to become very slippery.
might get in your engine.
does not affect the road surface or driving conditions.
5. Tests have shown that trucks with a high center of gravity are more likely to tip over, therefore you should:
distribute the cargo so the majority of the weight is on the steering axle.
distribute the cargo as low as possible.
put the lightest parts of the cargo under the heaviest parts.
All of the above.
6. Loose cargo:
could hurt or kill you during a quick stop.
can be a danger to others and yourself.
could fall off your vehicle and cause traffic problems.
All of the above.
7. When backing, as soon as you see the trailer getting off the proper path, you should:
turn the top of the steering wheel in the direction of the drift.
turn the top of the steering wheel in the opposite direction of the drift.
to keep a firm grip on the steering wheel and continue backing.
None of the above.
8. You should use chocks when parking a trailer without spring brakes because:
it helps prevent skids.
the brakes will hold only as long as there is air pressure in the trailer air tank.
it helps prevent brake failure.
it is required by law.
9. ABS will:
not change your normal braking capability.
shorten your stopping distance.
not give you more control over the vehicle during braking.
increase your average speed.
10. The tire load rating is stated:
on the side of each tire.
on each axle.
on the dashboard.
inside the suspension system.
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MA CDL Combination Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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