Q: A single-phase induction motor is coupled to a pump. The combined efficiency of the motor-pump set is 60% and the pump efficiency is 80%. What is the efficiency of the motor? एक एकल-फेज प्रेरण मोटर को एक पंप से जोड़ा जाता है। मोटर-पंप सेट की संयुक्त दक्षता 60% है और पंप की दक्षता 80% है। मोटर की दक्षता कितनी होगी?
A.
80%
B.
75%
C.
60%
D.
85%
Correct Answer:
Option B -
Explanations:
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