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In the formula Pr=PqSin(θ+Φ), what is Pr?

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In the formula Pr=PqSin(θ+Φ), what is Pr?

(a) The radial component at crankpin

(b) Pressure component at crankpin

(c) The tangential component at crankpin

(d) Vector component at crankpin

This question was addressed to me in an interview for job.

My doubt stems from IC Engine in chapter Design of IC Engine Components of Automotive Engine Design

1 Answer

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The correct option is (a) The radial component at crankpin

For explanation: In the formula  Pr=PqSin(θ+Φ), Pt is the tangential component of Pq at the crankpin and Pr is the radial component of Pq  at the crank pin.

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