Theory of Machine In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection is known as Damping factor Magnification factor Critical damping ratio Logarithmic decrement Damping factor Magnification factor Critical damping ratio Logarithmic decrement ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface) μ W R (3/4) μ W R (1/2) μ W R (2/3) μ W R μ W R (3/4) μ W R (1/2) μ W R (2/3) μ W R ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by (where μ = tan φ = Coefficient of friction between the plane and the body) P = W (cos α + μ sin α) P = W tan α P = W tan (α + φ) P = W (sin α + μ cos α) P = W (cos α + μ sin α) P = W tan α P = W tan (α + φ) P = W (sin α + μ cos α) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by W CS / 2CE 2 W CE / CS W CE / CS W CE / 2CS W CS / 2CE 2 W CE / CS W CE / CS W CE / 2CS 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. Horizontally and perpendicular Vertically and perpendicular Vertically and parallel Horizontally and parallel Horizontally and perpendicular Vertically and perpendicular Vertically and parallel Horizontally and parallel ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The absolute acceleration of any point ‘P’ in a link about center of rotation ‘O’ is None of the listed here Perpendicular to PO Along PO At 45° to PO None of the listed here Perpendicular to PO Along PO At 45° to PO ANSWER DOWNLOAD EXAMIANS APP
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