TENNESSEE CDL DOUBLES TRIPLES PRACTICE TEST
View instructions
Safely pulling double and triple trailers requires knowledge and skill. If you want to pull double or triple trailers, you must add the Doubles/Triples (T) endorsement to your Class A CDL. The Tennessee doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The TN CDL doubles triples test covers the following sections of the Tennessee CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this TN CDL practice test now to prepare for the actual test!
Not Sure You Will Pass?
Get a Pass Guarantee
Get a Pass Guarantee
UPGRADE TO CDL PREMIUM
1.
Front-end header boards:
|
reduce traction.
|
|
|
protect drivers from cargo in case of an accident or emergency stop.
|
|
|
should never be used.
|
|
|
protect drivers from spilled cargo.
|
2.
To prevent a rollover, the driver should:
|
drive on the shoulder if possible.
|
|
|
pay extra attention to the coolant level.
|
|
|
make quick lane changes if possible.
|
|
|
drive slowly around corners, on ramps, and off ramps.
|
3.
What can cause poor traction?
|
Overloading the truck.
|
|
|
Too little weight on the driving axles.
|
|
|
Too much weight on the steering axle.
|
|
|
All of the above.
|
4.
You must have at least _____ inch tread depth in every major groove on front tires.
|
3/32
|
|
|
2/32
|
|
|
4/32
|
|
|
6/32
|
5.
Which of the following vehicles is most likely to turn over?
|
65 ft. conventional double
|
|
|
5 axle tractor semitrailer
|
|
|
3 axle tractor semitrailer
|
|
|
Triple trailer
|
6.
When the temperature drops:
|
bridges will freeze before the road will.
|
|
|
bridges usually freeze after other parts of the roadway.
|
|
|
bridges will not freeze.
|
|
|
None of the above.
|
7.
Air brakes:
|
should be used only when driving on wet roads.
|
|
|
are prohibited on larger vehicles.
|
|
|
can improve fuel efficiency.
|
|
|
are an effective way to stop large and heavy vehicles.
|
8.
The trolley valve should be used only:
|
in an emergency.
|
|
|
to prevent skids.
|
|
|
to test the trailer brakes.
|
|
|
in driving.
|
9.
Your vehicle should be equipped with all of the following except:
|
Spare electrical fuses
|
|
|
Warning devices for parked vehicles
|
|
|
Instructions
on how to perform a vehicle inspection test
|
|
|
Fire extinguisher
|
10.
Before driving a vehicle with a dual air system, allow time for the air compressor to build up a minimum of ____ pressure in both the primary and secondary systems.
|
25 psi
|
|
|
50 psi
|
|
|
100 psi
|
|
|
75 psi
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More
Doubles Triples TN CDL Test
| Number of questions: | 20 |
| Correct answers to pass: | 16 |
| Passing score: | 80% |
Share This Online CDL Test
Save Time. Learn Faster.Ace Your CDL Test.
UPGRADE TO CDL PREMIUM
Rate this Doubles TriplesCDL Test