1 . Which part of the truck is the air compressor connected to?

The transmission
The engine
The radiator
The door latch
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2 . What can happen if a parking brake is used in very wet weather when temperatures are below freezing?

The brakes will squeak.
The brakes may freeze so the vehicle cannot move.
The brakes may suddenly release by themselves.
The brakes may explode.
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3 . With your low beam headlights turned on, you should be able to see about ____ ahead of your vehicle.

15 feet
75 feet
100 feet
250 feet
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4 . When driving a bobtail tractor, you should be aware that:

Bobtails stop very easily.
Bobtails cannot drive as fast as tractors with semitrailers.
Bobtails are more difficult to stop than tractors with semitrailers.
Bobtails are illegal in most states.
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5 . If you must stop on the side of a highway, how far behind your vehicle should warning devices be placed?

5, 15, and 30 feet
10, 25, and 50 feet
10, 100, and 200 feet
100, 200, and 500 feet
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6 . If you’re driving and the ABS warning light comes on, it means:

The ABS is working properly.
The ABS has just been activated.
The ABS is not working properly.
The ABS needs to be activated.
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7 . Good drivers consistently look ____ seconds ahead of their vehicles.

Two to three
Five to six
12 to 15
30 to 45
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8 . Overloading a vehicle with cargo can affect all of the following, except:

Steering.
Braking.
Speed control.
Cruise control.
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9 . Mirror adjustment can only be checked properly if:

The trailer is straight.
There is no trailer attached to the tractor.
The vehicle is on a slight incline.
The vehicle is on a slight decline.
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10 . The “crack-the-whip” effect for doubles and triples is:

Never a problem.
Only a problem if it is raining.
A serious concern.
Rarely an issue.
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11 . When approaching a downgrade, how can you reduce the amount of braking that will be needed?

Switch to a higher gear.
Switch to a lower gear.
Switch to neutral.
Turn off the engine.
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12 . How can you avoid becoming drowsy on a trip?

Get about three hours of sleep beforehand.
Plan ahead, including stopping points.
Do not build exercise into your daily routine.
Schedule the trip at night.
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13 . If you don't know if there is enough space for your vehicle to pass under a bridge, you should:

Speed up.
Swerve back and forth.
Slow down.
Drive on the shoulder.
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14 . 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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15 . If a vehicle has a vehicle inspection report, the driver:

Should not look at the report and instead try to find any issues themselves.
Should take the vehicle to a mechanic.
Should review the report.
Should not conduct a pre-trip inspection and rely only on the report.
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16 . If feeling sleepy while driving, you should:

Press on and finish the trip.
Drive faster to arrive to your destination sooner.
Leave the road and take a nap.
Take an energy pill.
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17 . An item that is 40 feet long placed on a flatbed trailer should be secured by at least ____ tie-down(s).

One
Two
Three
Four
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18 . At what psi is the safety valve set to open?

100 psi
150 psi
200 psi
500 psi
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19 . Loading cargo onto a vehicle:

Must be done by the driver.
May be done by a person other than the driver, and they become responsible for the safety of the cargo.
May be done by a person other than the driver, but the driver is responsible for the safety of the cargo.
Must be done by a professional loader.
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20 . What can happen if one-fourth of the leaves in a leaf spring are missing when a vehicle is inspected?

The vehicle’s driver will be allowed to drive, but only at reduced speeds.
The vehicle will be put out-of-service until it is fixed.
The vehicle will be fine to drive since most of the spring is in place.
The driver will be asked to decrease the weight of the load.
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