Physics · Mechanical Engineering

Which of the following expressions is correct for the brake power developed at the crankshaft in terms of mechanical efficiency? (Let BP be the brake power, IP be the indicated power, and ηm be the mechanical efficiency.)

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1BP = IP × ηm✓
2ηm = BP × IP
3BP = IP ÷ ηm
4IP = ηm × BP

Correct answer

BP = IP × ηm

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Which of the following expressions is correct for the brake power developed at the crankshaft in terms of mechanical efficiency? (Let BP be the brake power, IP be the indicated power, and ηm be the mechanical efficiency.)

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Which of the following expressions is correct for the brake power developed at the crankshaft in terms of mechanical efficiency? (Let BP be the brake power, IP be the indicated power, and ηm be the mechanical efficiency.)

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