Combination Vehicles Free

How do you provide air to the truck tanks by?

Does the truck protection valve maintain air in the truck or truck brake system since?

When coupling with a semi-truck, back off the truck?

When coupling, the fifth wheel jaws should close around the _____ of the kingpin.

After you hook up the air lines and before moving under the truck, you should?

When lowering the landing gear of a loaded truck,

After the truck has been coupled with the semi-trailer, in what position should you place the front brackets of the trailer, or the landing gear, before moving away?

When the air is let out of the trailer emergency line, what happens?

When hooking with a semitrailer, how should you back the truck up?

When parking trailers without spring brakes, use ____ to secure the truck safely.

The “normal” position of the trailer air supply control is used to?

At the moment you have to back up a trailer, should you position your truck to return?

Why should the trailer glad hands be locked together or attached to “dead end,” or dummy, couplers when not in use?

What should you do before investing a trailer?

For safer driving when you are behind other trucks, in good driving conditions, you should maintain at least 1 second between your truck and the truck ahead, for each?

In general, how is the upper gravity center of your truck?

When coupling with a semi-trailer, back off the truck?

Should you check your mirrors to see if your trailer is in the right position every time?

Your trailer has begun to skid. You should?

The normal position of the trailer air supply control is used for?

The fastest and best way to recognize that your trailer is skidding is by?

When hooking a truck and semitrailer, you must lock the kingpin into the fifth wheel. Which is the best way to check the connection?

If the air lines get crossed when hooking up to an old trailer, What could happen?

After the truck has coupled with the semi truck, in what position should you put the front trailer supports, or landing gear, before driving away?

Failure to keep the _____ lubricated could cause steering problems because of friction between truck and trailer.

Will the truck protection valve activate if the air pressure falls below?

You are coupling a truck and semitrailer, and ready to back your trailer under a semitrailer. When is the trailer at the right height?