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

Q.1

Trailers built before 1975 are:

Required to have spring brakes.
Not required to have spring brakes.
Unsafe to drive.
Prohibited from public roadways.

Q.2

If your trailer begins to drift off course while you are backing, you should:

Continue trying to back up without stopping.
Turn the top of your steering wheel in the direction of the drift.
Turn the top of the steering wheel in the direction opposite of the drift.
Return the steering wheel to the 12 o’clock position.

Q.3

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.4

What is a bobtail?

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

Q.5

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.6

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.7

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.8

What is off-tracking?

When a vehicle’s front wheels follow a different path than its rear wheels
When a vehicle's wheels all follow the exact same path
When a load shifts during a turn
When a vehicle's wheels run over a curb during a turn

Q.9

While inspecting a coupling, you should go under the trailer and:

Detach the jaws from around the kingpin.
Make sure the locking lever is in the "emergency" position.
Remove the safety latch.
Look into the back of the fifth wheel.

Q.10

When entering or crossing traffic while driving a combination vehicle, it is especially important that you:

Sound your horn.
Make sure there is a large enough gap for your vehicle.
Expect other drivers to make room for your vehicle.
Let other drivers wave you into their lane.

Q.11

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.

Q.12

When driving a trailer with ABS, you should:

Not depress the brakes as much as you would when driving a vehicle without ABS.
Use extra braking force to ensure the ABS kicks in.
Brake as you would when driving a vehicle without ABS.
Try to not brakes as often as you would when driving a vehicle without ABS.

Q.13

An air supply control lever should be in its "normal" position when you are:

Changing a tire.
Applying the trailer emergency brakes.
Pulling a trailer.
Using your spring brakes.

Q.14

An air supply control in its "emergency" position will:

Turn on the air supply.
Apply the trailer emergency brakes.
Prevent a skid.
Accelerate the vehicle.

Q.15

Having ABS on only one axle:

Does not change braking in any way.
Is not possible.
Will allow the driver additional control over their vehicle when braking.
Will cause extra strain on the other axles.

Q.16

To prevent a rollover, a driver should:

Keep cargo low.
Place cargo high.
Keep cargo loose.
Turn quickly.

Q.17

If a trailer begins to skid, the driver should:

Lock the brakes.
Release the brakes.
Steer in the opposite direction.
Accelerate.

Q.18

Simply changing lanes can cause:

A “crack-the-whip” effect, resulting in a rollover.
A trailer to straighten out.
Confusion over which lane the driver is hoping to use.
Other drivers to reduce their speed.

Q.19

If a trailer is too high:

It will not make a difference when coupling.
It may not couple correctly.
Coupling will be more secure.
Coupling will be easier.

Q.20

After coupling, there should be ____ between the upper and lower fifth wheel.

No space
Very little space
A lot of space
Three inches of space

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