Theory of Machine For dynamic balancing of a shaft None of these Both (A) and (B) The net couple due to the dynamic forces acting on the shaft is equal to zero The net dynamic force acting on the shaft is equal to zero None of these Both (A) and (B) The net couple due to the dynamic forces acting on the shaft is equal to zero The net dynamic force acting on the shaft is equal to zero ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be Perpendicular to each other Opposite to each other Inclined at 45° Parallel to each other Perpendicular to each other Opposite to each other Inclined at 45° Parallel to each other ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In gears, interference takes place when The tip of a tooth of a mating gear digs into the portion between base and root circles Gears do not move smoothly in the absence of lubrication Pitch of the gears is not same Gear teeth are undercut The tip of a tooth of a mating gear digs into the portion between base and root circles Gears do not move smoothly in the absence of lubrication Pitch of the gears is not same Gear teeth are undercut ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in All of these Torsional vibrations Transverse vibrations Longitudinal vibrations All of these Torsional vibrations Transverse vibrations Longitudinal vibrations 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 3.0 mm 2.50 mm 2.22 mm 2 mm 3.0 mm 2.50 mm 2.22 mm 2 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a simple train of wheels, the velocity ratio __________ the intermediate wheels. Depends upon Either A or B None of these Is independent of Depends upon Either A or B None of these Is independent of ANSWER DOWNLOAD EXAMIANS APP
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