Commercial Rules Free

Which is the fifth wheel position, before coupling to a trailer?

The air leakage for a combination vehicle (engine off, brakes off) should be less than?

If you cannot make a turn without entering to another lane, you should?

You have coupled with a semitrailer. In what position should you put the front trailer supports before driving away?”

How should you test the tractor-semitrailer connection for security

There are two things that a driver can do to prevent a roll over They are (1) Keep the cargo as close to the ground as possible, and (2)?

A driver crosses the air lines when hooking up to an old trailer, What will happen?

When should you use the hand valve to park a combination vehicle?

When you connect the glad hands, press the two seals together with the couplers to?

You are coupling a tractor and semitrailer and have connected the air lines. Before backing under the trailer, you should?

A driver crosses the air lines when hooking up to an old truck, What will happen?

When pulling a tractor under a trailer, you should?

You supply air to the trailer tanks by?

Offtracking’ or ‘cheating’. Which one will cause to follow the wider path when a vehicle goes around a corner

The maximum speed limit for a truck with a capacity of 2,000 pounds or less during day ligth or interestate road is