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New York CDL Combination Test 1
Practice mode
Question
1
of 20
QUESTION 1 / 20
If unsure if a trailer is equipped with ABS, you can:
Choose one answer below.
A
Check under the trailer for wheel speed sensors coming from the back of the brakes.
✓
B
Try driving on a slippery surface and see if ABS kicks in.
✓
C
Assume it does have ABS.
✓
D
Remove a tire and look for the ABS sensor on the axle.
✓
QUESTION 2 / 20
Before backing your tractor under the trailer, make sure your trailer brakes are:
Choose one answer below.
A
Disengaged.
✓
B
Locked.
✓
C
Deactivated.
✓
D
Dry.
✓
QUESTION 3 / 20
When uncoupling a trailer, landing gear should be:
Choose one answer below.
A
Raised completely.
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B
Lowered halfway.
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C
Just off the pavement.
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D
Firmly on the ground.
✓
QUESTION 4 / 20
What does the trailer air supply control look like?
Choose one answer below.
A
It is a square blue knob.
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B
It is a triangular yellow knob.
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C
It is an eight-sided red knob.
✓
D
It is a circular orange knob.
✓
QUESTION 5 / 20
The trailer hand valve:
Choose one answer below.
A
Should always be used for parking.
✓
B
Should only be used for parking on a downhill.
✓
C
Should never be used for parking.
✓
D
Should only be used when transporting cargo.
✓
QUESTION 6 / 20
One way to prevent a rollover is to:
Choose one answer below.
A
Move cargo to the left side of the rig.
✓
B
Keep cargo centered on the rig.
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C
Move cargo to the right side of the rig.
✓
D
Keep cargo as far from the ground as possible.
✓
QUESTION 7 / 20
Compared to other commercial motor vehicles, combination vehicles need more space on the road because they are longer and they:
Choose one answer below.
A
Need more space to turn and stop.
✓
B
Drive more slowly.
✓
C
Are twice the width.
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D
Swerve more often.
✓
QUESTION 8 / 20
During a trip, which shut-off valves should be open?
Choose one answer below.
A
All shut-off valves should be open.
✓
B
The rear shut-off valves should be open.
✓
C
All shut-off valves should be in the open position, except the rear shut-off valves.
✓
D
No shut-off valves should be open.
✓
QUESTION 9 / 20
A trailer will be most likely to swing around when:
Choose one answer below.
A
It is full.
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B
Traveling in a straight line.
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C
It is empty.
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D
The wheels are rotating.
✓
QUESTION 10 / 20
When driving a bobtail tractor, you should be aware that:
Choose one answer below.
A
Bobtails stop very easily.
✓
B
Bobtails cannot drive as fast as tractors with semitrailers.
✓
C
Bobtails are more difficult to stop than tractors with semitrailers.
✓
D
Bobtails are illegal in most states.
✓
QUESTION 11 / 20
What is a tractor protection valve?
Choose one answer below.
A
A valve to keep air in the brake system should there be a bad leak
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B
A valve that prevents the truck from being stolen
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C
A valve that prevents the driver from going too fast
✓
D
A valve that prevents the trailer from accidentally being released
✓
QUESTION 12 / 20
If you need to back your trailer but cannot back up in a straight path, you should:
Choose one answer below.
A
Back toward the passenger's side.
✓
B
Back toward the driver's side.
✓
C
Swerve back and forth while backing.
✓
D
Always turn to your right.
✓
QUESTION 13 / 20
Using the trailer hand brake while experiencing a trailer jackknife will:
Choose one answer below.
A
Stop the skid.
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B
Straighten the trailer.
✓
C
Increase traction.
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D
Continue the skid.
✓
QUESTION 14 / 20
Fully-loaded rigs:
Choose one answer below.
A
Are less likely to roll over than empty rigs.
✓
B
Are more likely to roll over than empty rigs.
✓
C
Are just as likely to roll over as empty rigs.
✓
D
Should not be driven.
✓
QUESTION 15 / 20
To lower the risk of a rollover, you should:
Choose one answer below.
A
Load the cargo as far forward as possible.
✓
B
Load the cargo as far back as possible.
✓
C
Load the cargo as low as possible.
✓
D
Stack the cargo as high as possible.
✓
QUESTION 16 / 20
To test the trailer service brakes, you should:
Choose one answer below.
A
Move the vehicle forward slowly and apply the brakes with the brake pedal.
✓
B
Reverse the vehicle slowly and apply the brakes with the hand control.
✓
C
Reverse the vehicle slowly and apply the brakes with the brake pedal.
✓
D
Move the vehicle forward slowly and apply the brakes with the hand control.
✓
QUESTION 17 / 20
One function of the emergency air line is to:
Choose one answer below.
A
Control the emergency brakes.
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B
Flash when air pressure is below a certain psi.
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C
Allow for quick turning.
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D
Control the ability to maneuver during bad weather conditions.
✓
QUESTION 18 / 20
The easiest way to recognize that your trailer has begun to skid is to:
Choose one answer below.
A
Ask another driver.
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B
Use your mirrors to determine if the trailer has left the lane.
✓
C
Release the brake pedal and then push it down again.
✓
D
Watch the jackknife warning light on the control panel.
✓
QUESTION 19 / 20
When a combination vehicle goes around a corner:
Choose one answer below.
A
The turn should be made as tightly as possible.
✓
B
The front and rear wheels move in different paths.
✓
C
The rear wheels should run over the curb.
✓
D
It is acceptable for street signs to be knocked over if they are too close to the road.
✓
QUESTION 20 / 20
When driving a tractor-trailer equipped with ABS, you should:
Choose one answer below.
A
Stop harder than you would otherwise.
✓
B
Use extra braking force to ensure the ABS kicks in.
✓
C
Brake as you normally would.
✓
D
Brake using less pressure than you would otherwise use.
✓
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