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ASE Brakes Practice Test
A5 Brakes
ASE Brakes
A5 Brakes Practice Test
Question 1 of 3
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Two technicians are discussing master cylinder residual check valves. Technician Y says the check valve is used on four wheel disc brake systems. Technician Z says the valve maintains pressure when the brakes are released. Who is correct?
A
Both Y and Z
B
Tech Z
C
Neither Y nor Z
D
Tech Y
The constant low pressure, usually 6 psi to 8 psi keeps air from entering the wheel cylinders.
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