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Q: 1 horsepower equals:
  • A. 746 J
  • B. 74.6 J/s
  • C. 746 W
  • D. 746 kW
Correct Answer: Option C - S.I. unit of power is watt which is equivalent to Joules/Second. In some cases (for motor vehicles etc.) power is given in terms of Horsepower (hp) and one Horsepower is equal to 746 watts (W).
C. S.I. unit of power is watt which is equivalent to Joules/Second. In some cases (for motor vehicles etc.) power is given in terms of Horsepower (hp) and one Horsepower is equal to 746 watts (W).

Explanations:

S.I. unit of power is watt which is equivalent to Joules/Second. In some cases (for motor vehicles etc.) power is given in terms of Horsepower (hp) and one Horsepower is equal to 746 watts (W).