Air Brake Manual Chapter 4
Mastering Air Brake Systems Quiz
Test your knowledge of air brake systems with our comprehensive quiz! Designed for both students and professionals, this quiz covers essential topics from the Air Brake Manual Chapter 4.
With a variety of questions on key concepts, you'll gain a deeper understanding of air brake mechanics and terminology. Prepare yourself for practical applications and improve your skills!
At what air pressure range does the governor place the compressor into its unloaded stage?
90 to 100 psi
120 to 145 psi
200 to 300 psi
150 - 175 psi
Which number in the diagram indicates the reservoir of the basic air brake system?
1
2
3
4
Which number indicates the brake chambers in the basic air brake system?
1
2
3
4
What is the definition of a slack adjuster?
The rubber hose connecting the tractor and trailer
The first tank where air is stored when it comes from the compressor
A device used to manually or automatically keep the brakes in proper adjustment
A device used to alter the slack on the supply line
What is reservoir air pressure at which the governor will put the compressor back into the pumping stage?
120 to 145 psi
100 psi
45 psi
60 psi
When you compress the foot valve, air in the brake chambers is exhausted through the foot valve, which releases the brakes.
True
False
This diagram of a basic brake system plus additions shows two reservoirs in blue. 2 refers to the _____ reservoir, and 5 refers to the ____ reservoir.
Supply (wet), and service
Service, and supply (wet)
Service, and secondary
Safety, and extra
What protects the supply reservoir from being over-pressurized and bursting?
Low air warning switch
Air pressure gauge
One-way check valve
Safety valve
The one-way check valve allows air to bleed back and forth between the supply and service reservoirs.
True
False
What best describes the time required for air to flow through the system when brakes are applied?
Brake fade
Blended air
Brake lag
Reaction time
How is "brake lag" to rear wheels minimized?
A relay valve and control line apply air faster
A relay valve quickly takes air from the rear service brakes to the front brakes
Through the use of a one-way check valve
Using a safety valve to quickly exhaust air
Air dryers remove all moisture in air brake systems, allowing reservoirs to be drained less often.
True
False
At what pressure will the low-pressure warning device activate?
60 psi
100 psi
145 to 150 psi
25 psi
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