After coupling the converter dolly to the rear of the first trailer using a pintle hook, what immediate check must the driver perform before backing under the second trailer?

After coupling the converter dolly to the

Multiple choice — select the best answer

ACheck that the second trailer's landing gear is fully retracted
BConfirm the tractor's fifth wheel grease is sufficient for the additional load
CEnsure the second trailer's glad hands are already connected to the first trailer
DVerify that the pintle hook is locked and the safety chains are connected

✓ Correct answer: D. Verify that the pintle hook is locked and the safety chains are connected The CDL manual requires the driver to verify that the pintle hook latch is secured and locked and that safety chains are properly connected before any movement toward the next trailer in the combination.

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After coupling the converter dolly to the rear of the first trailer using a pintle hook, what immediate check must the driver perform before backing under the second trailer?

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