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Illinois CDL Permit Test - Double

Number of questions: 20
Passing score: 16
Directions: This endorsement is required if the driver will pull two or three trailers. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Illinois Commercial Driver’s License Study Guide. Questions come from chapters covering: Driving Safely, Air Brakes (if applicable), Combination Vehicles and Doubles and Triples. The Double/Triple endorsement can be used with the Class A CDL.
You have made error so far
Passing grade —
4 or fewer errors
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1.
In bad weather, many drivers:
Like to drive in front of trucks.
Like to be on the side of trucks.
Like to follow trucks.
Like to drive without using their lights.
2.
When driving:
It is best to hide your intentions from others.
You should only use turn signals if there are vehicles near you.
You should not use turn signals in construction zones.
You should always use turn signals to warn others about your intentions.
3.
A converter dolly that has ABS can be identified:
By a blue sticker.
By an orange sticker.
By a yellow lamp on the left side of the dolly.
By a blue lamp on the left side of the trailer.
4.
Applying the brake pedal causes air pressure to activate an electric switch and:
Turn off the brake lights.
Turn on the low pressure warning light.
Turn on the brake lights.
Turn off the low pressure warning light.
5.
If your brakes fail on a downgrade, your best hope to stop is:
An escape ramp.
Driving on the shoulder.
Stay on the road.
Hitting a slower vehicle in front of you.
6.
How could you reduce your stress while driving?
Drink a caffeinated beverage
Talk on your cell phone
Gesture at other drivers
Listen to calming music
7.
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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