MASSACHUSETTS CDL PRACTICE TEST - GENERAL KNOWLEDGE

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