Theory of Machine In railway axle boxes, the bearing used is Double row spherical roller bearing Cylindrical roller bearing Deep groove ball bearing Double row self aligning ball bearing Double row spherical roller bearing Cylindrical roller bearing Deep groove ball bearing Double row self aligning ball bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine What is the number of instantaneous centers for an eight link mechanism? 15 8 28 30 15 8 28 30 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing) r sinφ r cosφ (r/2) cosφ r tanφ r sinφ r cosφ (r/2) cosφ r tanφ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Crowning on pulleys helps In decreasing the slip of the belt In increasing velocity ratio For automatic adjustment of belt position so that belt runs centrally Increase belt and pulley life In decreasing the slip of the belt In increasing velocity ratio For automatic adjustment of belt position so that belt runs centrally Increase belt and pulley life ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Whirling speed of the shaft is the speed at which Torsional vibrations occur Combination of transverse and longitudinal vibration occurs Shaft tends to vibrate in longitudinal direction Shaft tends to vibrate vigorously in transverse direction Torsional vibrations occur Combination of transverse and longitudinal vibration occurs Shaft tends to vibrate in longitudinal direction Shaft tends to vibrate vigorously in transverse direction ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine For simple harmonic motion of the of follower, a cosine curve represents All of these Acceleration diagram Displacement diagram Velocity diagram All of these Acceleration diagram Displacement diagram Velocity diagram ANSWER DOWNLOAD EXAMIANS APP
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