🚛CDL Doubles/Triples — Question 19 of 20
You are driving with double trailers and must use your brakes to avoid a crash. For emergency braking you should:
Answer: C
Use controlled or stab braking.
Stab braking is one of two emergency braking techniques. Stab braking involves applying the brakes hard until the wheels lock up and then immediately releasing the brakes until they begin rolling once more.
All choices
- AUse only the trailer brakes,
- BUse light, steady pressure on the brake pedal.
- CUse controlled or stab braking.
CDL Doubles/Triples Test Info
Questions on Exam
20
Passing Score
80%
Time Limit
Typically 30 minutes; varies by testing location
The Doubles/Triples test content is federally standardized, so this question applies in every state. Age limits, fees, and testing procedures do vary — check your state's CDL requirements.
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More CDL Doubles/Triples Practice Questions
- The purpose of a converter dolly is to:
- Converter dollies:
- The converter dolly air tank drain valve on coupled double/triple trailers should be:
- Crack-the-whip effect occurs when:
- Which of these statements about the handling of doubles and triples is true?