Theory of Machine The two elements of a pair are said to form a higher pair, when they Permit relative motion Have a surface contact when in motion Are kept in contact by the action of external forces, when in motion Have a line or point contact when in motion Permit relative motion Have a surface contact when in motion Are kept in contact by the action of external forces, when in motion Have a line or point contact when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following mechanism is an approximate straight line motion mechanism? All of these Robert's mechanism Watt's mechanism Grasshopper mechanism All of these Robert's mechanism Watt's mechanism Grasshopper mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from 80°- 90° 50°- 60° 70°- 80° 60°-70° 80°- 90° 50°- 60° 70°- 80° 60°-70° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Whirling speed of the shaft is the speed at which Combination of transverse and longitudinal vibration occurs Torsional vibrations occur Shaft tends to vibrate vigorously in transverse direction Shaft tends to vibrate in longitudinal direction Combination of transverse and longitudinal vibration occurs Torsional vibrations occur Shaft tends to vibrate vigorously in transverse direction Shaft tends to vibrate in longitudinal direction ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is 529.2 N-s/m 52.92 N-s/m 18.52 N-s/m 1.4 N-s/m 529.2 N-s/m 52.92 N-s/m 18.52 N-s/m 1.4 N-s/m ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The type of coupling used to join two shafts whose axes are neither in same straight line nor parallel, but intersect is Oldham's coupling Universal coupling Flexible coupling Chain coupling Oldham's coupling Universal coupling Flexible coupling Chain coupling ANSWER DOWNLOAD EXAMIANS APP
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