for a self locking machine, the efficiency must be Options: A . &nbsp Equal to 50% B . &nbsp Less than 50% C . &nbsp Greater than 50% D . &nbsp 100%

for a self locking machine, the efficiency must be

Question

For a self locking machine, the efficiency must be

Options:

A . Equal to 50%

B . Less than 50%

C . Greater than 50%

D . 100%

Answer: Option B

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