Minimum thermal efficiency of a steam boiler may be around __________ percent Options: A . &nbsp25 B . &nbsp45 C . &nbsp65 D . &nbsp20

Minimum thermal efficiency of a steam boiler may be around _________

Question

Minimum thermal efficiency of a steam boiler may be around __________ percent

Options:

A . 25

B . 45

C . 65

D . 20

Answer: Option D

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