Physics Work & Energy NUMS 2022
PMDC Verified Question 63 of 108
An electric motor of power 2hp is installed in an industrial unit. Its power is
A
1500 W
B
742 W
C
148 W
D
1492 W
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: 1492 W
Concept:

Convert Mechanical Horsepower into Watts.

Formula:

$$ P_{\text{watts}} = P_{\text{hp}} \times 746 $$

Solution:

  • 1 hp = 746 W.


  • Given Power = 2 hp.


  • \( 2 \times 746 = 1492 \text{ W} \).


Why other options are incorrect:

1500 W is a rough approximation but not exact. 742 W is an incorrect base value. 148 W drops a digit.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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