CA 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 California doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The CA CDL doubles triples test covers the following sections of the California CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this CA CDL practice test now to prepare for the actual test!
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1.
Air tank drains:
protect the tanks and the rest of the system from too much pressure.
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should not be used in wet weather.
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are used to remove water and oil from the air tanks.
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2.
Doubles/triples are:
usually faster than most CMVs.
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less stable than other CMVs.
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easier to drive than other CMVs.
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3.
Engine oil pressure should come up to normal within _________ after the engine is started.
two minutes
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five minutes
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seconds
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4.
Tire load is defined as:
the weight transmitted to the ground by 1 tire.
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the minimum safe weight a tire can carry at a specified pressure.
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the maximum safe weight a tire can carry at a specified pressure.
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5.
Which of the following is not proper tie-down equipment:
Bungee cords
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Chains
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Ropes
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6.
When the temperature drops:
bridges will freeze before the road will.
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bridges will not freeze.
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bridges usually freeze after other parts of the roadway.
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7.
In a dual air brake system, if one air system is very low on pressure:
you should pump the brakes to restore pressure.
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either the front or rear brakes will not be operating fully.
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you should drive and brake as you always have.
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8.
If you are feeling sleepy, you should:
slow down and drive on the shoulder of the road.
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increase your speed to get to the destination quicker.
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pull off the road and rest or take a nap.
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9.
Why should you cover your cargo?
To protect people from spilled cargo.
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To protect the cargo from weather.
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All of the above.
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10.
To prevent a rollover, the driver should:
make quick lane changes if possible.
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drive slowly around corners, on ramps, and off ramps.
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drive on the shoulder if possible.
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CA Doubles Triples Test
Number of questions: | 20 |
Correct answers to pass: | 16 |
Passing score: | 80% |
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