|
Press on and finish the trip.
|
|
|
Drive faster to arrive to your destination sooner.
|
|
|
Leave the road and take a nap.
|
|
|
Take an energy pill.
|
Tennessee CDL Permit Test - Double
(From the 2021 Tennessee CDL driver handbook)
| 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. Each question has three or four possible answer choices. Test questions come from the Commercial Driver 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.
Passing grade —
4 or fewer errors
advertising
1.
If feeling sleepy while driving, you should:
2.
If a truck is equipped, a trailer brake hand valve can be used to:
|
Add fuel to the truck.
|
|
|
Prevent the truck from rolling back when being started from a stop.
|
|
|
Check the engine oil level.
|
3.
In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when air pressure drops to a level between:
|
20 and 45 psi.
|
|
|
75 and 105 psi.
|
|
|
50 and 65 psi.
|
4.
How is the parking brake released?
|
By tapping on the brake pedal three times
|
|
|
By pushing in the brake control knob
|
|
|
By engaging the accelerator
|
|
|
By tapping the accelerator twice
|
5.
If you are being tailgated, you should:
|
Drive on the shoulder.
|
|
|
Pull off the roadway.
|
|
|
Drive faster.
|
|
|
Allow the vehicle to pass.
|
6.
A lightly-loaded combination vehicle will stop more slowly than a fully-loaded vehicle because:
|
The stiff suspension springs and strong brakes will have high traction.
|
|
|
The stiff suspension springs and strong brakes will have low traction.
|
|
|
The brakes only operate when a trailer reaches a minimum weight.
|
|
|
The suspension springs only operate when a trailer reaches a minimum weight.
|
7.
On a leaf spring, the leaves:
|
May be broken.
|
|
|
Are not required.
|
|
|
Should not be broken.
|
|
|
Should shift.
|
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