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WASHINGTON CDL DOUBLES TRIPLES 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 Washington doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The WA CDL doubles triples test covers the following sections of the Washington CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this WA CDL practice test now to prepare for the actual test!
1. If a load is 50 feet long, the minimum number of tie-downs required is:
5
10
4
2. When should you turn the retarder off?
when the road is slippery.
when the cargo is heavy.
when your vehicle has a high center of gravity.
3. Blocking is used to:
keep the cargo from sliding.
protect the cargo from weather.
protect people from spilled cargo.
4. Doubles/triples are:
easier to drive than other CMVs.
less stable than other CMVs.
usually faster than most CMVs.
5. When driving in hot weather, drivers should inspect tires:
every 2 hours or every 100 miles.
every 3 hours or every 75 miles.
every 4 hours or every 200 miles.
6. You should test the coupling by:
applying the parking brakes so the rig will not move.
pulling against the pin of the second semitrailer.
locking the pintle hook.
7. Glad hands are:
securement devices.
coupling devices.
warning devices.
8. When coupling, you should:
make sure the trailer wheels are not chocked.
make sure the trailer kingpin is bent.
be aware that wrong coupling and uncoupling can be very dangerous.
9. Which of the following is not proper tie-down equipment:
Chains
Ropes
Bungee cords
10. The best advice for driving in fog is:
use high beams.
use low beams.
don't drive.
 
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Doubles Triples WA CDL Test

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