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Mechanical Engineering
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Dec 6, 2023
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An air brake system has which three different braking systems? (Select all that apply)
Selected Answers:
A.
Parking brake system
B.
Emergency Brake System
D.
Service Brakes
Answers:
A.
Parking brake system
B.
Emergency Brake System
C.
Hydraulic brake reservoir system
D.
Service Brakes
E.
Operations brake system
Response Feedback:
Parking, Emergency, and Service brake systems
Question 2
2 out of 2 points
Another name for the brake pedal is the
Selected Answers:
D.
Treadle Valve
Answers:
A.
Accelerator
B.
Decelerator
C.
Air Actuation Valve
D.
Treadle Valve
Response Feedback:
Treadle Valve
Question 3
2 out of 2 points
The foundation brakes on a CMV are typically
____________ systems.
Selected Answers:
C.
S-cam brakes
Answers:
A.
Wedge
B.
Disc brakes
C.
S-cam brakes
Response Feedback:
S-cam brakes
Question 4
2 out of 2 points
When more air pressure is required to maintain the
same speed with the brakes, this has occurred:
Selected Answers:
B.
Brake fade
Answers:
A.
Leak in an air tank
reservoir
B.
Brake fade
C.
Treadle valve is out of
adjustment
Response Feedback:
Brake Fade
Question 5
2 out of 2 points
On an air brake system the brake linings are
activated against the drum by a cam system that is
connect to a slack adjuster and rod. The air provides
the mechanical movement to the rod via
Selected Answers:
B.
The Air Chamber
Answers:
A.
The slack adjuster
B.
The Air Chamber
Response Feedback:
The air chamber
Question 6
2 out of 2 points
Control of the speed of a CMV should primarily be
achieved by
Selected Answers:
B.
Gear selection
Answers:
A.
Braking
B.
Gear selection
C.
Accelerator
Response Feedback:
Gear Selection
Question 7
2 out of 2 points
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