1 . Which part of a combination vehicle is the most likely to turn over?

The cab
The trailer immediately behind the cab
The middle trailer
The last trailer
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2 . If a vehicle gets stuck on a railroad track, the driver should:

Stay in the vehicle and try to restart the vehicle.
Get out of the vehicle and walk away from the tracks.
Try to flag down another vehicle to give them a push.
Wait in the vehicle for a law enforcement officer to arrive.
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3 . When coupling a triple trailer rig:

The trailer immediately behind the cab should be coupled first.
The rear trailer should be coupled first.
The lightest trailer should be coupled first.
The order in which trailers are coupled is not important.
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4 . Doubles and triples:

Turn easily due to their centers of gravity.
Are more difficult to turn than smaller commercial vehicles.
Should never be turned.
Always have the right-of-way.
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5 . What happens when you push in the trailer air supply control knob?

Air is supplied to the emergency lines.
The air system is disconnected from the trailer.
The drain valve is opened.
Air brakes are applied.
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6 . If an Anti-Lock Braking System (ABS) malfunctions:

The driver will not know.
A yellow lamp will light up on the control panel.
The brakes will lock up.
The brakes will not work.
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7 . To stop in a vehicle that uses air brakes, the driver should:

Pull the air brake lever.
Engage the brake lever.
Push the brake pedal down.
Pull the brake pedal up.
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8 . In a double or triple combination:

Cargo weight must be evenly distributed between all trailers.
The heaviest trailer should be positioned directly behind the cab.
The heaviest trailer should be positioned in the rear.
The weight of the trailers does not matter.
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9 . If an Anti-Lock Braking System (ABS) is equipped on a trailer but not on a tractor:

The truck should not be driven because ABS needs to be on both the tractor and trailer.
The truck should be driven more slowly than usual.
The tractor should not be used and a new tractor with ABS should be located.
The tractor and trailer can still be used together.
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10 . Due to the "crack-the-whip" effect:

Doubles and triples are more likely to turn over than other combination vehicles.
A combination vehicle will make a loud noise if driven fast enough.
The tires on a middle trailer will lock up at all stops.
Vehicles following a truck will be able to travel faster than normal.
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11 . Bicyclists are:

Required to ride on the shoulder, if available.
Required to ride at the maximum speed limit or they will face an impeding traffic charge.
Expected to obey all traffic laws.
Not allowed on the roadway.
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12 . A speed limit posted on a curve:

Is likely acceptable to be driven in a double or triple.
Is the minimum speed that should be driven in a double or triple.
Could be too fast to be driven in a double or triple.
Should be increased when driving a double or triple.
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13 . When inspecting underneath your vehicle for leaking fluids, you must look for all the following, except:

Fresh oil.
Coolant.
Grease.
Windshield wiper fluid.
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14 . If the brake pads rub against the brake drums and create too much heat:

The brakes will stick.
The brakes will become extra sensitive.
The brakes may stop working.
The air compressor will kick on to cool the brakes.
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15 . Improper coupling is:

Impossible.
Not a problem.
Not easily detected.
Very dangerous.
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16 . When preparing to enter traffic, you should do all of the following, except:

Wait for a large gap between vehicles.
Be prepared for your vehicle to accelerate slowly, especially if it is loaded.
Make sure you can completely cross traffic, if necessary, without interfering with traffic.
Assume other drivers will make room for your much larger vehicle.
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17 . Beginning in what year were converter dollies required to be manufactured with ABS?

1954
1973
1998
Converter dollies are not required to have ABS.
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18 . What happens if, after connecting a trailer, there is no air pressure in the trailer brakes?

The brakes will not work.
There will be no air in the cab.
The load will not be supported properly.
Alternative brakes must be used.
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19 . While driving, the shut-off valve at the back of the rear trailer should be:

Open.
Closed.
Unplugged.
Reset.
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20 . When driving a double or triple, it is important to remember that:

The vehicle requires more space than most other vehicles.
Other drivers will likely get out of your way when necessary.
The vehicle likely weighs the same as other vehicles.
The vehicle can easily fit into small spaces.
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