Theory of Machine A body is said to be under forced vibrations, when There is a reduction in amplitude after every cycle of vibration None of these A body vibrates under the influence of external force No external force acts on a body, after giving it an initial displacement There is a reduction in amplitude after every cycle of vibration None of these A body vibrates under the influence of external force No external force acts on a body, after giving it an initial displacement ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Crowning on pulleys helps Increase belt and pulley life For automatic adjustment of belt position so that belt runs centrally In decreasing the slip of the belt In increasing velocity ratio Increase belt and pulley life For automatic adjustment of belt position so that belt runs centrally In decreasing the slip of the belt In increasing velocity ratio ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The motion between a pair when limited to a definite direction, irrespective of the direction of force applied, is known as Completely constrained motion Incompletely constrained motion None of these Successfully constrained motion Completely constrained motion Incompletely constrained motion None of these Successfully constrained motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of lower pair is Straight line motion mechanisms Shaft revolving in a bearing Automobile steering gear All of these Straight line motion mechanisms Shaft revolving in a bearing Automobile steering gear All of these 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 0, 0 0, and more than co2r cor, 0 0, and less than coV 0, 0 0, and more than co2r cor, 0 0, and less than coV 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 3.0 mm 2 mm 2.22 mm 2.50 mm 3.0 mm 2 mm 2.22 mm ANSWER DOWNLOAD EXAMIANS APP
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