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Air Brake Manual Chapter 6

A detailed illustration of an air brake system, showcasing various components like trailers, valves, and reservoirs in a technical and educational style.

Air Brake Systems Quiz

Test your knowledge on air brake systems with this comprehensive quiz designed to challenge your understanding and reinforce key concepts. Perfect for students, professionals, and anyone interested in mastering air brake technology!

Assess your knowledge on crucial air brake components.
Understand the functions and applications of different valves.
Prepare for certification or enhance your skills in vehicle safety.

15 Questions4 MinutesCreated by DrivingGear412

What is the mimimum pressure at which the tractor protection system must be activated?

10 psi

20 psi

80 psi

100 psi

To change a two- or three-axle unit into a tractor, what must be added?

A tractor system

A secondary reservoir

Parking-brake system

A trailer system

What does this red octagonal button usually control?

Trailer-supply valve

Parking brake

Modulator valve

Sirens

The two functions of the trailer-supply valve are to control the tractor protection valve and to supply air to the trailer reservoirs.

True

False

The supply line to the trailer always contains the same air pressure as...

The highest pressure circuit

The lowest pressure circuit

The secondary circuit

The primary circuit

The hand valve can also be used as a parking brake.

True

False

What is the hand-control valve used for?

To operate the trailer's brakes independent of the tractor

To couple or uncouple the trailer

To straighten out the tractor during a skid

All answers are correct

Which is not one of the three functions of the relay emergency valve?

To relay air from the trailer reservoir to the trailer-brake chambers

To automatically direct pressure to the brake in the event of a rupture

To charge the trailer system through a one way check valve

To protect the gladhands from dirt and debris, preventing air leaks

What is the function of a two-way check valve?

Allows air to flow in one direction but not the other

Stops air in a reservoir from going back to the source of the supply

Allows air to be directed to one delivery pipe from either of two sources

Allows air to come from two sources at once

The trailer reservoir tank provides a volume of air near the rear service brakes for normal or emergency braking

True

False

Which term refers to the direct delivery of air to the trailer brake chambers in the event of a sudden loss of air pressure in the supply line?

Exlplosive braking

Dynamiting

Uh oh braking

TNT-ing

If the service-line is ruptured or disconnected, what will take place?

An immediate triggering of an emergency brake application

Nothing

Nothing until a brake application is made

A warning light

If the supply-line is ruptured or disconnected, what will take place?

Nothing until a brake application is made

An immediate triggering of an emergency brake application

A warning light

Nothing

How can you check the operation of the trailer spring-brake valve?

Closing or disconnecting the supply line with the supply valve in the open position

Closing or disconnecting the supply line with the supply valve in the closed position

Closing the supply valve

Opening the supply valve

Because of the one-way check valve, there is sufficient air pressure for a limited number of brake applications if there is a loss of pressure from the supply reservoir.

True

False

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