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MASSACHUSETTS DOUBLES TRIPLES PRACTICE CDL TEST

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Safely pulling double and triple trailers requires knowledge and skill. If you want to pull double or triple trailers, you must add the Doubles/Triples (T) endorsement to your Class A CDL. The Massachusetts doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The MA CDL doubles triples test covers the following sections of the Massachusetts CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this MA CDL practice test now to prepare for the actual test!
1. If you doubt you have enough space to pass under a bridge, you should:
turn on your 4-way emergency flashers.
drive faster.
go slowly.
turn on your headlights.
2. Who is responsible for inspecting the cargo?
The motor carrier
The driver
The person who loaded and secured the cargo
The shipper
3. The service line is also called:
control line.
cable line.
brake line.
power line.
4. With an engine fire, you should NOT:
shoot foam from the vehicle’s underside.
open the hood.
turn the engine off as soon as possible.
None of the above.
5. When the temperature drops:
bridges will not freeze.
bridges usually freeze after other parts of the roadway.
bridges will freeze before the road will.
None of the above.
6. When checking the engine compartment in a vehicle inspection, you should check all of the following except:
Coolant level in radiator
Windshield washer fluid level
Engine oil level
Shock absorbers
7. Which of the following is not a braking system on a truck?
Steering brake
Service brake
Emergency brake
Parking brake
8. Large vehicles take longer to stop when they are:
empty.
carrying hazardous materials.
fully loaded.
heavily loaded but not fully loaded.
9. Longer combination vehicles have the tendency to swing wide on turns. This is called:
hydroplaning.
jackknifing.
rollover.
off-tracking.
10. Combination vehicles usually require _________ single commercial vehicles.
the same level of skill as
less driving skill than
more driving skill than
None of the above.
 
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MA Doubles Triples CDL Test

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