AT100 Unit 3 Test
Authored by Michael Johnson
Instructional Technology
10th Grade
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
According to Pascal’s law, the original pressure placed on a confined liquid is _____ throughout the liquid.
transferred with increased pressure
transferred with decreased pressure
transferred undiminished
transferred with an increase or decrease, depending on the shape of the container
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
All of the following are characteristics of high-quality brake fluid, except:
must not swell or deteriorate the brake system’s plastic and rubber parts.
can safely be mixed with any other type of DOT-approved brake fluid.
maintains even viscosity throughout a wide temperature variation.
acts as a lubricant for pistons, seals, and cups to reduce internal wear and friction.
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
To compensate for the transfer of weight to the front wheels due to inertia when a vehicle is stopped, the vehicle’s brake system is designed with a(n) _____
A. braking ratio
B. additional brake pad on each front wheel
C. emergency brake
D. larger rear brake shoe assembly
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
In a dual brake system, the dual master cylinder _____
locks up one wheel on each axle when braking
applies pressure to separate front and rear brake hydraulic systems
works the transmission clutch also
has two master cylinders, with one positioned on top of the other
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Which of the following valves controls brake hydraulic pressure to a vehicle’s rear wheels?
Proportioning valve.
Master cylinder check valve.
Pressure differential switch.
Metering valve.
6.
DROPDOWN QUESTION
30 sec • 2 pts
The (a) valve closes off pressure to the front disc brakes until the hydraulic system pressure can overcome rear brake shoe retracting spring pressure.
variable pressure
disc brake metering
master cylinder check
7.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Which of the following valves warns the driver that one side of a split hydraulic system has failed?
Proportioning valve.
Master cylinder check valve.
Pressure differential switch.
Metering valve.
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