When visually checking a coupling device, you should:

Question

When performing a visual check of coupling devices, you should make sure there is no space between the upper and lower fifth wheel. Ensure that the locking jaws are securely closed around the shank of the kingpin.

Accepted Answer

Make sure the locking jaws are closed on the kingpin.

Answer

Look for mud on the fifth wheel.

Answer

Make sure the kingpin is polished.

Answer

Make sure there is a space between the upper and lower fifth wheel.