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Tennessee CDL Permit Test - Tank

Number of questions: 20
Passing score: 16
Directions: This endorsement is required to haul any liquid or gaseous materials in a tank or tanks having a capacity of 1,000 gallons or more that is either permanently or temporarily attached to the vehicle or chassis. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. Each question has three or four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Commercial Driver Guide. Questions come from chapters covering: Cargo, Air Brakes and Tank Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.
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4 or fewer errors
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1.
A dual air brake system:
Has a single air brake system, but uses two sets of controls.
Has one air brake system for each side of the truck.
Has two brakes for each wheel.
Has two separate air brake systems, but uses a single set of controls.
2.
A surge may occur when:
The temperature of the cargo rises too quickly.
Liquid cargo quickly moves to the front or rear of a tank.
A vehicle has been sitting idle.
3.
Dry bulk tanks:
Usually have a low center of gravity.
Usually have a high center of gravity.
Are usually not allowed to cross railroad tracks.
4.
What happens if the air pressure in a system's air tanks falls below 60 psi?
A warning light will come on.
The vehicle will not shift out of gear.
The front lights will flash.
The vehicle should stop.
5.
The air compressor is connected to the:
Transmission.
Engine.
Radiator.
6.
To control a surge, brakes should:
Not be used.
Not be released too quickly after stopping.
Be used firmly and then released.
Be used with the parking brake.
7.
A surge occurs with which type of cargo?
Solid
Liquid
Gas
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