Theory of Machine In gears, interference takes place when Pitch of the gears is not same The tip of a tooth of a mating gear digs into the portion between base and root circles Gear teeth are undercut Gears do not move smoothly in the absence of lubrication Pitch of the gears is not same The tip of a tooth of a mating gear digs into the portion between base and root circles Gear teeth are undercut Gears do not move smoothly in the absence of lubrication ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of 2.50 mm 2.22 mm 2 mm 3.0 mm 2.50 mm 2.22 mm 2 mm 3.0 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of the rubbing surface __________ with the distance from the axis of the bearing. Increases None of these Decreases Remain same Increases None of these Decreases Remain same ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the sleeve of a Porter governor moves downwards, the governor speed Remain unaffected Decreases Increases First increases and then decreases Remain unaffected Decreases Increases First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than 0.25 1 0.5 2 0.25 1 0.5 2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine An automobile steering gear is an example of Rolling pair Lower pair Sliding pair Higher pair Rolling pair Lower pair Sliding pair Higher pair ANSWER DOWNLOAD EXAMIANS APP
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