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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. Containerized loads:
must be inspected before and after the trip.
should exceed gross weight and axle weight limits.
are generally used for freight carried part way by rail or ship.
All of the above.
2. If your cargo only fills one-third of the length of your trailer, make sure your cargo is:
piled up high with heavy cargo on top.
to one side and as close to the ground as possible.
centered and spread out as much as possible.
loaded so there is a high center of gravity.
3. You are coupling a semi-trailer to your tractor but have not yet backed under. The trailer is at the right height when:
the locking jaws are around the head of the kingpin.
it will be raised slightly when the tractor is backed under it.
the end of the kingpin is even with the top of the fifth wheel.
None of the above.
4. Which of the following is not a reason for covering cargo?
To prevent other drivers from looking at the cargo
To protect the cargo from weather
To protect people from spilled cargo
All of the above.
5. If your trailer starts to skid, you should:
accelerate slightly.
keep the rear of your vehicle close to the curb.
use the trailer hand brake (if you have one) to straighten out the rig.
release the brakes to get traction back.
6. When more cargo is piled up in a truck, the truck becomes easier to turn over. Fully loaded rigs are _________ to roll over in a crash than empty rigs.
five times more likely
three times more likely
ten times more likely
less likely
7. Which of the following statements about off-tracking is true?
When a vehicle goes around a corner, the rear wheels follow the same path as the front wheels.
Longer vehicles off-track less.
If there is more than one trailer, the rear wheels of the last trailer will off-track the most.
None of the above.
8. Tests have shown that trucks with a high center of gravity:
can roll over at the posted speed limit for a curve.
can roll over if the driver slows down before entering a curve.
can roll over if the driver exceeds the posted speed limit for a curve.
are less likely to roll over when entering a curve.
9. At passive railroad crossings, even if there are active railroad signals that indicate the tracks are clear, you must _________  to be sure it is safe to proceed.
go, stop and listen
stop, look, and listen
listen, look and stop
go, look and put the transmission in neutral
10. Over-length loads:
require special driving care.
may require special equipment such as "wide load" or flags.
require special transit permits.
All of the above.
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CDL Combination Test (MA)

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