ELDT - Entry Level Driver Training Coupling and Uncoupling Questions and Answers 2

Question 1

When coupling a tractor to a trailer, what should you check before backing under the trailer?

Accepted Answer

That the kingpin is not bent or broken

Answer

That the trailer brakes are released

Answer

That the trailer landing gear is fully raised

Answer

That the trailer doors are closed

Question 2

After coupling, how do you test that the fifth wheel is securely locked?

Accepted Answer

Apply the trailer brakes and pull forward gently

Answer

Rock the trailer side to side

Answer

Check the air line connections

Answer

Drive at highway speed for one mile

Question 3

What is the correct height for the trailer when coupling?

Accepted Answer

The trailer should be slightly lower than the fifth wheel

Answer

The trailer should be slightly higher than the fifth wheel

Answer

The trailer should be at the same height as the fifth wheel

Answer

The height does not matter during coupling

Question 4

During uncoupling, when should you lower the landing gear?

Accepted Answer

Before disconnecting the air lines and pulling the release handle

Answer

After disconnecting the air lines

Answer

After pulling the fifth wheel release handle

Answer

After the tractor has pulled away

Question 5

What should you do if the fifth wheel release handle is hard to pull during uncoupling?

Accepted Answer

Back up slightly to relieve pressure on the kingpin

Answer

Use a longer lever for more force

Answer

Disconnect the air lines first

Answer

Have another driver help pull the handle

Question 6

What is the purpose of the glad hands in the coupling process?

Accepted Answer

They connect the air lines between tractor and trailer

Answer

They connect the electrical system between tractor and trailer

Answer

They secure the landing gear in the raised position

Answer

They lock the fifth wheel jaws