1 . A convex mirror is sometimes called a ____ mirror.

Bug-eye
Square
Helper
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2 . How should you test the low pressure warning signal?

Engage and disable the parking brake.
Rapidly press and release the brake pedal.
Open the rear shut-off valves.
Uncouple and recouple all glad hands.
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3 . Test the low pressure warning signal:

Once a month.
Once a week.
Twice a week.
Before every trip.
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4 . When passing another vehicle, you should:

Make eye contact with the driver.
Assume the other driver doesn't see you.
Honk your horn.
Not use a turn signal.
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5 . A registered vehicle should have:

A mirror on the left side only.
Mirrors on both the left and right sides.
A mirror on the right side only.
Only a rearview mirror.
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6 . When only the tractor is equipped with an Anti-Lock Braking System (ABS):

There is a decreased risk of jackknifing.
There is an increased risk of jackknifing.
The brakes will not work as effectively as they would without ABS.
The brakes will become more sensitive.
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7 . The two indicators that determine when you should upshift are:

Engine speed and road speed.
Other trucks and road conditions.
Timing and road position.
Oil pressure and air brake pressure.
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8 . The ____ tells a driver how much pressure is in the air tanks.

Application pressure gauge
Air compressor governor
Supply pressure gauge
Drum brake
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9 . Belts in the engine compartment should be:

Frayed.
Tight.
Greasy.
Easy to slide off.
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10 . Brakes can get out of adjustment:

If they are hot.
During the winter.
If they are used at all.
If brakes on one side are used more often than brakes on the other side.
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11 . A low air pressure warning signal should activate:

When tank pressure falls below 120 psi.
When tank pressure falls below 60 psi.
When tank pressure falls below 10 psi.
When tank pressure falls below 5 psi.
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12 . To prevent fatigue while driving, you should:

Keep the cab warm.
Keep the cab cool.
Keep the cab poorly ventilated.
Close the vents.
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13 . Which of the following is not a sign of bad brake drums or shoes?

Cracked drums
Pads with oil on them
Shoes worn thin
Shoes that are not covered in brake fluid
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14 . In the event of an engine fire, you should not:

Turn the engine off as soon as possible.
Keep the fire from spreading.
Open the hood.
Spray from the underside of the vehicle.
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15 . What must be on an air tank in an air-braked vehicle?

A check valve
A lock
A trap door
An oxidizer
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16 . If your truck or trailer catches fire, you should:

Park in a congested area near trees.
Pull into a service station.
Park near other vehicles.
Park in an open area.
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17 . Coupling can be tested by a driver:

Placing their fingers inside the coupling mechanism.
Pulling against the pin of the second semi-trailer.
Placing glue over the fifth wheel.
Releasing the orange lever in the cab.
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18 . When coupling a double or triple, which trailer should be attached last?

The trailer directly behind the cab
The middle trailer
The rear trailer
It doesn’t matter.
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19 . When it is difficult for others to see your vehicle, such as at dawn or dusk, you can help other drivers by:

Keeping your lights off.
Turning your lights on.
Driving on the shoulder.
Waving an arm out the window.
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20 . 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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