Theory of Machine In vibration isolation system, if ω/ωn > 1, then the phase difference between the transmitted force and the disturbing force is 0° 90° 180° 270° 0° 90° 180° 270° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A chain comprises of 5 links having 5 joints. Is it kinematic chain? Data are insufficient to determine it It is a marginal case Yes No Data are insufficient to determine it It is a marginal case Yes No ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane takes a turn to the left. The effect of gyroscopic couple on the aeroplane will be To raise the nose and dip the tail To dip the nose and raise the tail To dip the nose and tail To raise the nose and tail To raise the nose and dip the tail To dip the nose and raise the tail To dip the nose and tail To raise the nose and tail ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is 9,360 r.p.m. 6,000 r.p.m. 5,367 r.p.m. 12,000 r.p.m. 9,360 r.p.m. 6,000 r.p.m. 5,367 r.p.m. 12,000 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Hammer blow Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses Varies as the square root of the speed Varies inversely with the square of the speed Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses. Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses Varies as the square root of the speed Varies inversely with the square of the speed Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be cor, 0 0, and less than coV 0, and more than co2r 0, 0 cor, 0 0, and less than coV 0, and more than co2r 0, 0 ANSWER DOWNLOAD EXAMIANS APP
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