Wisconsin CDL Combination 2 - DMV Written Test Questions with Answers - MCQGeeks.com

Q.1

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.

Q.2

To test the trailer service brakes, you should:

Move the vehicle forward slowly and apply the brakes with the brake pedal.
Reverse the vehicle slowly and apply the brakes with the hand control.
Reverse the vehicle slowly and apply the brakes with the brake pedal.
Move the vehicle forward slowly and apply the brakes with the hand control.

Q.3

Starting in which year were newly manufactured trailers required to have ABS?

1972
1987
1998
2004

Q.4

Before a drive, ensure that air flows to all trailers by:

Opening the rear shut-off valves and listening for escaping air.
Closing the rear shut-off valves and listening for escaping air.
Disconnecting air supply lines and listening for escaping air.
Rolling each trailer down a hill and testing the brakes.

Q.5

Using the trailer hand valve while driving:

Will help you turn safely.
Will stop your trailer safely.
Can cause a skid.
Is impossible.

Q.6

The trailer hand valve:

Should always be used for parking.
Should only be used for parking on a downhill.
Should never be used for parking.
Should only be used when transporting cargo.

Q.7

What does the trailer air supply control look like?

It is a square blue knob.
It is a triangular yellow knob.
It is an eight-sided red knob.
It is a circular orange knob.

Q.8

In a sudden turn, the ____ trailer is the most likely to turn over.

Front
Last
Middle
First

Q.9

If you cannot reverse your trailer in a straight path, you should:

Swerve back and forth while backing.
Back toward the driver's side.
Back toward the passenger's side.

Q.10

Place the trailer air supply control in its "emergency" position to test:

The trailer emergency brakes.
A coupling device.
The anti-lock brakes.

Q.11

When you are pulling a trailer, the air supply control lever should be in its ____ position.

Emergency
Supply
Normal

Q.12

When traveling more slowly than 40 mph, maintain at least ____ of following distance per every 10 feet of your vehicle.

One second
Two seconds
Three seconds
Four seconds

Q.13

Rollovers happen when drivers:

Turn too quickly.
Do not driving fast enough.
Pay attention to the road.
Drive illegally.

Q.14

When glad hands are coupled, the seals should be pressed together at an angle of:

30 degrees.
45 degrees.
60 degrees.
90 degrees.

Q.15

To lower the risk of a rollover, you should:

Load the cargo as far forward as possible.
Load the cargo as far back as possible.
Load the cargo as low as possible.
Stack the cargo as high as possible.

Q.16

A lightly-loaded combination vehicle will stop more slowly than a fully-loaded vehicle because:

The stiff suspension springs and strong brakes will have high traction.
The stiff suspension springs and strong brakes will have low traction.
The brakes only operate when a trailer reaches a minimum weight.
The suspension springs only operate when a trailer reaches a minimum weight.

Q.17

If an air supply control is in its "emergency" position:

The vehicle will increase speed.
The trailer emergency brakes will be applied.
The air supply to the trailer will increase.

Q.18

All trailers made after ____ must be equipped with Anti-Lock Braking Systems (ABS).

1943
1998
2009

Q.19

What is a bobtail tractor?

A tractor without a semi-trailer
A tractor with two semi-trailers
A tractor that travels faster than the speed limit

Q.20

If the emergency air line loses pressure:

The Anti-Lock Braking System will activate.
The service air line will activate.
The emergency brakes will activate.

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