Theory of Machine In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to 0.2 0.8 0.6 0.4 0.2 0.8 0.6 0.4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The lower pair is a Closed pair Open pair Sliding pair Point contact pair Closed pair Open pair Sliding pair Point contact pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The tractive force in a locomotive with two cylinders is given by (where c = Fraction of reciprocating parts per cylinder, m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, and θ = Angle of inclination of crank to the line of stroke) m.ω².r cosθ (1 - c).m.ω².r (cosθ - sinθ) m.ω².r (cosθ - sinθ) m.ω².r sinθ m.ω².r cosθ (1 - c).m.ω².r (cosθ - sinθ) m.ω².r (cosθ - sinθ) m.ω².r sinθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line At 45° to line as per (A) Not possible to determine with these data Perpendicular to line as per (A) Joining the corresponding points At 45° to line as per (A) Not possible to determine with these data Perpendicular to line as per (A) Joining the corresponding points ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the crank is at the inner dead center, in a reciprocating steam engine, then the acceleration of the piston will be ω²r. (n + 1)/n ω²r. n/(n - 1) ω²r. (n - 1)/n ω²r. n/(n + 1) ω²r. (n + 1)/n ω²r. n/(n - 1) ω²r. (n - 1)/n ω²r. n/(n + 1) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a mechanism, the fixed instantaneous centers are those centers which Remain in the same place for all configurations of the mechanism None of the listed here Moves as the mechanism moves, but joints are of permanent nature Vary with the configuration of the mechanism Remain in the same place for all configurations of the mechanism None of the listed here Moves as the mechanism moves, but joints are of permanent nature Vary with the configuration of the mechanism ANSWER DOWNLOAD EXAMIANS APP
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