During a coupling inspection, what components need to be checked?

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Prepare for the Red Seal Transport Trailer Technician Exam. Study with multiple choice questions, each with hints and explanations to ensure you succeed. Get ready to excel in your certification!

The components that need to be checked during a coupling inspection play a crucial role in ensuring the safe and effective operation of a transport trailer. The king pin, fifth wheel plate, and locking mechanism are essential parts of the coupling system that must be in proper working order.

The king pin is the primary connection point between the tractor and the trailer. It must be inspected for wear and damage, as any deficiencies could compromise the connection and lead to dangerous situations while driving.

The fifth wheel plate is the surface to which the king pin attaches. Its surface must be free of cracks, excessive wear, or contaminants that could impede the locking mechanism’s function. Proper lubrication is also essential for the fifth wheel to function correctly.

The locking mechanism secures the king pin to the fifth wheel plate. It should engage and function smoothly to ensure that the trailer remains attached during operation. A damaged or malfunctioning locking mechanism can lead to accidental uncoupling, which poses a significant hazard on the road.

By focusing on these components, the inspection ensures that the coupling system is secure, thereby maintaining the overall integrity and safety of the transport operation. The other options presented include components that, while important in their own right, do not directly relate to the critical function of the

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