F 13. Disk friction is commonly used in power transmission systems and are calle
ID: 1770883 • Letter: F
Question
F 13. Disk friction is commonly used in power transmission systems and are called clutches. TG T F 14. Disk friction is not dependent upon the area of disc. 15. If the coefficient of friction between a flexible belt and the pulley is zero, then the force in the belt before and after the pulley are equal. 16. Free body diagrams do not typically help when you are working friction problems. 17. The survey for this class is open online now. T F T F The total number of students who respond to the survey will improve my homework total number of points. 18. T F 19. Despite us not working any homework problems, there will be several numerical problems from Chapter 7, Virtual Work, on the final. T F 20. Tribology is the study of friction, wear, lubrication, and the design of bearings and is sometimes called the science of interacting surfaces in relative motion.Explanation / Answer
13 True
a friction clutch with two flat friction plate sets (Disc) that come into contact to engage. The clutch engages when the applied plate pressure exceeds an engagement threshold pressure. Once engaged, the plates experience frictional torques that enable them to transmit power between the base and follower driveshafts.
14. False
Disc friction is dependent on surface area of the disc,
15. True
If the friction force is zero, tension in the belt will be the same at both ends
16. False
Free body diagram helps while dealing with friction problems, you can take example of pulley mass system with friction between pulley and rope.
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