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Question
Coupling can be tested by a driver:
Answers
A.  Placing their fingers inside the coupling mechanism.
B.  Pulling against the pin of the second semi-trailer.
C.  Placing glue over the fifth wheel.
D.  Releasing the orange lever in the cab.
Explanation
It is essential to safety that a driver inspects coupling before starting a trip. Trailer coupling on a double or triple combination can be tested by pulling against the pin of the second semi-trailer.
Answer Statistics
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This questions is considered quite Hard

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