Asked by Hesam Esmailian on Jun 15, 2024
Verified
Technician A says cracks in the drum facing, such as around lug holes can occur from extreme stress or from a collision.Technician B says cracking in the friction surface is a result of overheating and extreme stress when braking.Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B
Drum Facing
The process of machining the surface of a brake drum to ensure it is smooth and even for better brake performance.
Friction Surface
The specific part of a component, such as a brake pad or clutch disc, that comes into contact with another component to generate friction.
Extreme Stress
A condition of high demand or pressure that exceeds the normal operating range of an object or individual, potentially leading to failure or distress.
- Identify the consequences of physical damage to drum brakes and their impact on vehicle safety.
Verified Answer
PV
Penny VazquezJun 19, 2024
Final Answer :
C
Explanation :
Both technicians are correct. Technician A is correct in stating that cracks in the drum facing, such as around lug holes, can occur from extreme stress or from a collision. Technician B is correct in stating that cracking in the friction surface is a result of overheating and extreme stress when braking. Both conditions are common causes of damage to brake drums.
Learning Objectives
- Identify the consequences of physical damage to drum brakes and their impact on vehicle safety.