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The tanker endorsement applies to drivers who wish to drive a tank in Class A, B, or C CDL. To add this endorsement to your CLP/CDL, you must pass a knowledge test on the problems posed by large volume liquid cargos. The Massachusetts CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The MA tanker test covers the following sections of the Massachusetts CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this MA tanker practice test now to prepare for the actual test!
1. With a dual air brake system:
each system has its own air tanks, hoses and lines.
each system shares air tanks.
one system is the main braking system while the other is a back-up system.
each system shares the same lines and hoses.
2. Even if you are not required to always stop at railroad crossings and you are sure no train is approaching, you must stop before reaching the crossing if:
the tracks are not clear.
you can drive completely through the crossing without stopping.
there is no oncoming traffic.
there is oncoming traffic.
3. To avoid a crash:
swerving is always the worst thing to do.
stopping is not always the best thing to do.
stopping is always the safest thing to do.
None of the above.
4. To keep your vehicle from rolling back when you start, you should:
partly engage the clutch before you take your foot off the brake.
apply the emergency brake whenever necessary.
turn the engine off before you take your foot off the brake.
pump the brakes.
5. In vehicles with air brakes, water and compressor oil in the bottom of the air tank:
should be added regularly.
should be drained completely.
should not be removed.
None of the above.
6. If you're feeling tired while driving you should:
drink coffee.
increase your speed to get to your destination quicker.
stop driving and get some rest.
eat something.
7. If you are feeling sleepy, you should:
get some coffee.
slow down.
drive faster.
pull off the road and rest.
8. To prevent drowsiness you should:
avoid exercise to save more energy.
get adequate sleep before a trip.
schedule trips for the middle of the night.
never drive with a passenger.
9. One way to control liquid surge is to:
brake far in advance of a stop and increase following distance.
drive below the speed limit.
reduce your following distance.
release the brakes soon when coming to a stop.
10. Emergency brakes are:
not required on buses.
not required on commercial vehicles with air brakes.
not required on doubles.
required on all vehicles.
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MA Tanker CDL Test

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