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Florida 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 Florida CDL Handbook. 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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8.
When checking your tires, which of the following is not an issue to correct?
Too much air pressure
Too little air pressure
Radial and bias-ply tires used together
Tread depth of at least 4/32 of an inch on the front tires
9.
If you must stop on the side of a highway, how far behind your vehicle should warning devices be placed?
5, 15, and 30 feet
10, 25, and 50 feet
10, 100, and 200 feet
100, 200, and 500 feet
10.
Service brakes should:
Be tested once a month.
Only be tested by a trained mechanic.
Be tested before every trip.
11.
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.
12.
____ is a thin layer of ice that forms on road surfaces.
White ice
Black ice
Green ice
Blue ice
13.
All air tanks must include:
A drain valve.
A lock.
A trap door.
A warning sticker.
14.
When parked on the side of the road, you should:
Use only the rear flashing lights.
Use one set of turn signals.
Use your high beam headlights.
Use your four-way flashers.
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