Theory of Machine In its simplest form, a cam mechanism consists of following number of links 3 1 2 4 3 1 2 4 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 Chain coupling Universal coupling Flexible coupling Oldham's coupling Chain coupling Universal coupling Flexible coupling ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The factional torque for square thread at the mean radius r while raising load W is given by T = W.r tanα T = W.r tan(φ + α) T = W.r tanφ T = W.r tan(φ - α) T = W.r tanα T = W.r tan(φ + α) T = W.r tanφ T = W.r tan(φ - α) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a cam drive with uniform velocity follower, the sharp corners of the displacement diagram are rounded off at the beginning and at the end of each stroke. This is done In order to have acceleration in beginning and retardation at the end of stroke within the finite limits Because the uniform velocity motion is a partial parabolic motion Because of difficulty in manufacturing cam profile Because of loose contact of follower with cam surface In order to have acceleration in beginning and retardation at the end of stroke within the finite limits Because the uniform velocity motion is a partial parabolic motion Because of difficulty in manufacturing cam profile Because of loose contact of follower with cam surface 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 The sense of Coriolis component is such that it Leads the sliding velocity vector by 180° Leads the sliding velocity vector by 90° Lags the sliding velocity vector by 90° Is along the sliding velocity vector Leads the sliding velocity vector by 180° Leads the sliding velocity vector by 90° Lags the sliding velocity vector by 90° Is along the sliding velocity vector ANSWER DOWNLOAD EXAMIANS APP
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