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1. |
The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank) |
A. | ωr [sin θ + (sin 2θ/n)] |
B. | ωr [cos θ + (cos 2θ/n)] |
C. | ω²r [sin θ + (sin 2θ/n)] |
D. | ω²r [cos θ + (cos 2θ/n)] |
Answer» B. ωr [cos θ + (cos 2θ/n)] | |