1.
Transporting hanging meat requires special attention. Why?
Because you have to drive fast to get it delivered fresh.
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Because refrigerated trucks have less traction.
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Because hanging meat can be an unstable load with a high center of gravity.
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All of the above.
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2.
When parking a trailer without spring brakes, it is very important for safety that you use wheel chocks. Why?
The air could leak out of the trailer air tank, releasing its emergency brakes.
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if you don't use wheel chocks, supply air will be sent to the service line instead of going to charge the trailer air tanks.
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You may not notice a major leak in the service line until you try to put the brakes on.
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None of the above.
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3.
A high center of gravity means:
a rollover is less likely.
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you'll have better traction.
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you are more likely to tip over.
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the spring brakes will come fully on.
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4.
When backing a trailer, you should:
try to position your vehicle so you can back on a curved path.
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avoid using the brakes.
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turn the steering wheel in the opposite direction of the turn.
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turn the steering wheel toward the direction you want to go.
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5.
The best way to test the trailer service brakes is to:
accelerate to the maximum possible speed, then apply the trailer brakes fully.
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pull forward quickly, then apply the trailer brakes with your hand control.
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put the handbrake on when there are no vehicles around you.
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None of the above.
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6.
Most truck driver deaths in crashes result from:
following too closely.
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truck rollovers.
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driving side-by-side with another truck.
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off-tracking.
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7.
If you have a manual transmission, when stopping don't _______ until the engine rpm is down close to idle.
shift to second gear
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place the transmission in park
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push the clutch in
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apply the brakes
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8.
The iron trailer supports are up, and the full weight of the trailer is resting on the tractor. Make sure:
the safety latch is not engaged.
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there is enough clearance between the upper and lower fifth wheel.
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you are in a low enough gear.
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there is enough clearance between the rear of the tractor frame and the landing gear.
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9.
In combination vehicles with air brakes, the trailer air supply control:
is used to control the tractor protection valve.
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is used to keep the trailer behind the tractor.
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is a coupling devices used to connect the service and emergency air-lines from the tractor to the trailer.
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supplies air to the trailer air tanks.
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10.
Headache racks:
protect you from being hit by your cargo.
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can blind other drivers.
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help you keep weights within legal limits.
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None of the above.
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