CBSE BOARD X, asked by algenismorillo, 11 months ago

Effective operation of roller chain and gear couplings requires proper
A. lubrication and cooling
B. lubrication and balance
C. Alignment and balance
D.Alignment lubrication

Answers

Answered by ajita3352

10

Answer:

B. lubrication and balance

Explanation:

hope hope it helps you !!!

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