Theory of Machine In locomotives, the ratio of the connecting rod length to me crank radius is kept very large in order to Have perfect balancing Minimize the effect of primary forces To start the locomotive quickly Minimize the effect of secondary forces Have perfect balancing Minimize the effect of primary forces To start the locomotive quickly Minimize the effect of secondary forces ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The pitching of a ship produces forces on the bearings which act __________ to the motion of the ship. Vertically and parallel Horizontally and parallel Horizontally and perpendicular Vertically and perpendicular Vertically and parallel Horizontally and parallel Horizontally and perpendicular Vertically and perpendicular ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as Damping coefficient Damping factor Magnification factor Logarithmic decrement Damping coefficient Damping factor Magnification factor Logarithmic decrement ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is a spring controlled governor? Hartnell governor Wilson-Hartnell governor All of these Hartung governor Hartnell governor Wilson-Hartnell governor All of these Hartung governor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank) m.ω².r cosθ m.ω².r (sin 2θ/n) m.ω².r sinθ m.ω².r (cos 2θ/n) m.ω².r cosθ m.ω².r (sin 2θ/n) m.ω².r sinθ m.ω².r (cos 2θ/n) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Coriolis component of acceleration exists whenever a point moves along a path that has Linear displacement Tangential acceleration Rotational motion Gravitational acceleration Linear displacement Tangential acceleration Rotational motion Gravitational acceleration ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS