CDX Brakes midterm answers complete latest summer 2024.
1. All of the below statements are true except: -
2. All of the below statements are true except: -
3. If we triple the speed of an object, the kinetic energy will:
4. Medium and heavy duty. vehicles often require increased brak...
1. All of the below statements are true except: - *Correct ANS*A service
brakes consist of drum and/or disc brakes and are operated by hand
2. All of the below statements are true except: - *Correct ANS*In drum
brakes, the heat is created outside of the drum and transferred to the
inner surface
3. If we triple the speed of an object, the kinetic energy will: - *Correct
ANS*increase by nine times
4. Medium and heavy duty. vehicles often require increased braking in
situations........... - *Correct ANS*exhaust brake
5. Tech A says that a disc brake operates by clamping friction materials
to the outside of a disc. Tech B says that a drum brake operates by
clamping friction materials to the outside of a drum. - *Correct
ANS*Tech A
6. Tech ! says that an antilock brake system (ABS) allows the front
wheels to be steered during a panic stop. Tech B says that ABS
sensors apply or release hydraulic pressure to the wheel brake units
during ABS brake events. - *Correct ANS*Tech A
7. Tech A says that friction brakes can fade due to overheating of the
brake lining. Tech B says that friction brakes can fade due to
overheating of the brake fluid. - *Correct ANS*Both A and B
8. Tech A says that kinetic energy is created during braking to stop the
vehicle. Tech B says that kinetic energy is converted to heat energy
during braking. - *Correct ANS*Tech B
, 9. Tech A says that light-duty service are typically applied hydraulically.
Tech B says that light-duty parking brakes are typically applied
hydraulically. - *Correct ANS*Tech A
10. Tech A says that the brake pedal uses leverage to multiply foot
pressure. TEch B says that when braking hard while moving forward,
the vehicle's weight transfer to the rear wheels, increasing their
traction - *Correct ANS*Tech A
11. Tech A says that the heavier the vehicle, the more stopping
power is needed. TEch B says that the faster a vehicle is moving, the
more braking power is needed - *Correct ANS*Both A and B
12. Tech A says that tire pressure does not affect braking. Tech B
says that heavy vehicle loads increase stopping distance. - *Correct
ANS*Tech B
13. Tech A says that water soaked brake shoes can be a cause of
brake fade. Tech B says that disc brakes dissipate heat faster than
drum brakes. - *Correct ANS*Both A and B
14. The brake pedal uses leverage: - *Correct ANS*to multiply the
force applied to the master cylinder
15. the cycle of energy transformation in a typical vehicle is -
*Correct ANS*chemical heat mechanical kinetic
16. the kind of brake fade caused by the brake fluid becoming so
hot that it boils is - *Correct ANS*hydraulic fade
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