1 . Rollovers happen when:

Drivers turn too fast.
Drivers turn too slowly.
There is a lot of traffic.
Vehicles are too close to one another.
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2 . If the low pressure warning light comes on while you are driving:

Braking will only be possible if there is still enough air in the tanks.
You can apply the brakes 14 times before the air in the system runs out.
You should continue to drive normally and check the brake system when it is convenient.
You should stay at least 100 feet away from other vehicles.
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3 . When leaving your vehicle, you should:

Apply the parking brake.
Apply the air brakes.
Not apply any brake.
Disconnect the trailer.
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4 . If pulled over on the side of the road, you should:

Use the taillights to alert other motorists.
Turn on your four-way flashers.
Keep your lights off to avoid distracting other drivers.
Set out items from the cab to warn motorists.
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5 . The parking brake should be:

Used whenever you park the vehicle.
Used while driving.
Set when driving in bad weather.
Used to stop the vehicle in normal driving.
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6 . A person working on a disabled vehicle on the shoulder of a road:

Will likely pay attention to traffic on the road.
May be focused on the repair and not paying attention to roadway traffic.
Is exempt from traffic laws.
Should not be assisted.
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7 . Which of the following is not an example of a distracted person that motorists should be worried about?

A driver talking to another person in a vehicle
Children on the side of the road
Construction workers on the side of the road
A person sitting on a bench waiting for a bus
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8 . What is another name for the service line?

The control line
The utility line
The open line
The parallel line
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9 . When uncoupling a dolly, you should:

Unlock the pintle hook before moving the dolly out from under the rear trailer.
Move the dolly out from under the rear trailer before unlocking the pintle hook.
Raise the dolly landing gear.
Remove the dolly as quickly as possible.
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10 . What is another name for the service line?

The signal line
The cable line
The surplus line
The power line
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11 . A steering wheel should be held:

With both hands.
With one hand, keeping the other hand free for other tasks.
With one hand at a time, alternating between hands.
At the base of the wheel.
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12 . An emergency brake must be controlled by:

Mechanical force.
Air pressure.
Gravity.
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13 . Which type of brakes do most heavy-duty vehicles have?

Air brakes
Solid brakes
Liquid brakes
Gravity brakes
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14 . When passing another vehicle, you should:

Make eye contact with the driver.
Assume the driver doesn’t see you.
Honk your horn.
Wait for the other driver to signal that it is safe to do so.
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15 . When coupling a trailer, you should:

Couple together the proper glad hands.
Couple glad hands with any other glad hands.
Leave one pair of glad hand loose.
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16 . When driving a trailer with ABS, you should:

Not depress the brakes as much as you would when driving a vehicle without ABS.
Use extra braking force to ensure the ABS kicks in.
Brake as you would when driving a vehicle without ABS.
Try to not brakes as often as you would when driving a vehicle without ABS.
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17 . Backing with a trailer is dangerous because:

It is difficult for the driver to see behind the trailer.
There may be extra weight in the front of the vehicle.
Cargo may fall out of the trailer.
Trailers are not made to be driven in reverse.
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18 . When driving a vehicle equipped with an Anti-Lock Braking System (ABS), you should:

Stop harder than you would in a vehicle not equipped with ABS.
Use extra braking force to ensure the ABS kicks in.
Brake as you would in a vehicle not equipped with ABS.
Brake with less force than you would in a vehicle not equipped with ABS.
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19 . Stopping distance can be affected by:

Driving speed.
Temperature.
Time of day.
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20 . To use the controlled braking method, you should:

Apply the brakes as hard as possible without locking the wheels.
Apply the brakes with about half-force.
Apply the brakes until the wheels lock.
Pump the brakes.
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