Author Question: The most common cause of roller chain failure is: A. Sideplate fatigue. B. Roller fatigue. C. ... (Read 78 times)

cartlidgeashley

  • Hero Member
  • *****
  • Posts: 572
The most common cause of roller chain failure is:
 
  A. Sideplate fatigue.
  B. Roller fatigue.
  C. Crystallization embrittlement.
  D. Lack of lubrication.

Question 2

A man is holding a 50 pound box three feet above the grounD. How much work is
  being done?
 
  A. -50 ft-lb
  B. 0 ft-lb
  C. +50 ft-lb
  D. +150 ft-lb



triiciiaa

  • Sr. Member
  • ****
  • Posts: 349
Answer to Question 1

D

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

For a complete list of videos, visit our video library