1 . Avoid needing to make sudden lane changes by:

Using your horn to encourage other drivers to move out of your lane.
Only driving slower than the posted speed limit.
Watching the road ahead while driving.
Pulling off the road and waiting when there is high traffic.
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2 . When a combination vehicle goes around a corner:

The turn should be made as tightly as possible.
The front and rear wheels move in different paths.
The rear wheels should run over the curb.
It is acceptable for street signs to be knocked over if they are too close to the road.
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3 . Rollovers are most likely to happen when:

Drivers turn too fast.
Driver turn too slowly.
It is windy.
It is raining.
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4 . If colors are being used to distinguish glad hands, which color is used for emergency lines?

Orange
Yellow
Blue
Red
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5 . To prevent a trailer from rolling over, you should:

Speed up when nearing a corner.
Make sudden steering moves.
Take on-ramps faster than the posted speed limit.
Drive slowly around corners.
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6 . When lightly loaded, combination vehicles:

Should not be driven.
Have reduced braking capabilities.
Will not rollover.
Should be loaded with most of the weight in the rear of the trailer.
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7 . What is the Johnson bar?

A hand valve that works the trailer brakes
A valve that indicates the fuel level
A valve that measures the amount of liquid in the air brake system
A valve that allows for the release of excess pressure in the braking system
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8 . When backing up to couple a trailer, you should position the tractor:

At a 90-degree angle in front of the trailer.
Directly in front of the trailer.
At a 30-degree angle in front of the trailer.
At a 60-degree angle in front of the trailer.
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9 . To help prevent a rollover, cargo should be:

Placed as high as possible inside the trailer.
Placed as low as possible inside the trailer.
Placed on the passenger side of the trailer.
Placed on the driver’s side of the trailer.
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10 . The best way to recognize that your trailer has begun to skid is by:

Seeing other drivers' faces.
Seeing it in your mirrors.
Feeling it.
Listening to the radio.
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11 . Proper coupling technique:

Is the same on all vehicles.
Is essential to the safe operation of a vehicle.
Includes ensuring that the fifth wheel plate is not greased.
Can be learned over time.
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12 . To prevent a rollover, cargo should be:

Placed near the front of a trailer.
Placed near the rear of a trailer.
Spread out on a trailer.
Loaded with most weight on the driver’s side of a trailer.
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13 . If you need to back your trailer but cannot back up in a straight path, you should:

Back toward the passenger's side.
Back toward the driver's side.
Swerve back and forth while backing.
Always turn to your right.
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14 . How many air lines does a combination vehicle have?

One
Two
Three
Four
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15 . When the wheels of a trailer lock up:

The trailer will stay straight.
The trailer tends to swing around.
The cab will swing, but the trailer will stay straight.
They will likely go flat.
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16 . Starting in which year were newly manufactured trailers required to have ABS?

1972
1987
1998
2004
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17 . If a parked trailer does not have spring brakes, you should keep the trailer from moving by:

Using the air brakes.
Using wheel chocks.
Parking near a wall.
Parking on a slight incline.
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18 . What is another name for the service line?

The signal line
The cable line
The surplus line
The power line
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19 . If a load is placed on one side of a trailer, the trailer:

May lean, and could result in a rollover.
May add extra support during turns.
Have improved braking.
Have improved steering.
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20 . When coupling a trailer:

Make sure to couple matching glad hands.
Any glad hand can be connected to any other glad hand.
It is best to leave one glad hand unattached.
Only one set of glad hands should be connected.
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