NE CDL DOUBLES TRIPLES TEST - PRACTICE TEST

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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 Nebraska doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The NE CDL doubles triples test covers the following sections of the Nebraska CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this NE CDL practice test now to prepare for the actual test! Important: Triple trailers are not legal in Nebraska.
1. Emergency brakes are:
not required on doubles.
required on all vehicles.
not required on commercial vehicles with air brakes.
not required on buses.
2. Which of the following will NOT help you prevent rollover?
Keeping the cargo as close to the ground as possible.
Using the controlled braking method.
Driving slowly around turns.
All of the above.
3. You are driving a vehicle with air brakes when the low air pressure warning light and buzzer come on. You should:
activate your hazard lights and drive to the nearest place where you can stop.
pull off the road and stop immediately.
slow down and test your brakes.
apply the brakes as hard as you can.
4. Cargo should be properly covered:
to block your view or someone else’s.
to protect the weather from the cargo.
to protect people from spilled cargo.
All of the above.
5. After the pre-trip inspection, drivers should inspect their cargo and its securing devices again within ________ after beginning the trip.
two hours
20 miles
50 miles
25 miles
6. If the drive wheels start to skid:
use the brakes to slow down.
push in the clutch to let them turn freely.
accelerate slightly to regain control.
All of the above.
7. When driving at night, you should use ________ when you can.
low beams
indicator lights
emergency flashers
high beams
8. A trailer jackknife is more likely to happen when the trailer is:
overloaded.
empty.
loaded to its full capacity.
None of the above.
9. If an aggressive driver confronts you, you should NOT:
try to let them pass.
ignore gestures.
make eye contact.
try to get out of their way.
10. When your vehicle starts to skid, you must take action to:
use stab braking.
use controlled braking.
restore traction to the tires.
accelerate and countersteer.
 
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NE Doubles Triples Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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