MASSACHUSETTS CDL PRACTICE TEST - GENERAL KNOWLEDGE
31.
Under-loaded front axles:
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can make the steering axle weight too light to steer safely.
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can improve traction.
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can cause tire failure.
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All of the above.
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32.
During the vehicle inspection, you should check your clutch for:
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Sticking
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Looseness
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Damage
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All of the above.
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33.
If you hear a loud loud "bang" and the steering feels "heavy", you should:
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brake hard and pull off the road.
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check your rearview mirrors to see if you have a flat tire.
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hold the steering wheel firmly and stay off the brake.
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pump the brakes until the vehicle has slowed down.
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34.
When the wheels of a trailer lock up, the trailer will tend to swing around. This is more likely to happen when:
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the trailer is overloaded.
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the trailer is fully loaded.
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the trailer is empty or lightly loaded.
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None of the above.
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35.
If the low air pressure warning light comes on, you should:
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set the parking brake.
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continue to drive normally.
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stop immediately.
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call for help.
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36.
When driving on long and/or steep downgrades, to select an appropriate safe speed you should consider:
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the length of the grade.
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the road conditions.
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the total weight of the vehicle and cargo.
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All of the above.
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37.
What is an important thing to remember about emergency braking?
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The more heavily loaded semitrailer trailer should be in the rear.
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You should never use stab braking.
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Your natural response (hitting the brakes) is never the right solution.
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Pushing down on the brake pedal as hard as you can will only keep the wheels locked up and cause a skid.
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38.
The following are some causes of vehicle fires:
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Tight turns and gravel roads
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Tailgating while smoking
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Under-inflated tires and duals that touch
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All of the above.
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39.
Regardless of its size, cargo should have at least ___ tie-downs.
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3
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1
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4
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2
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40.
Before each trip, you must make sure:
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the cargo has a high center of gravity.
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your cargo obscures your view to the sides.
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the cargo is balanced and secured.
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the truck is overloaded.
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