Theory of Machine In a mechanism, the fixed instantaneous centers are those centers which Moves as the mechanism moves, but joints are of permanent nature Remain in the same place for all configurations of the mechanism None of the listed here Vary with the configuration of the mechanism Moves as the mechanism moves, but joints are of permanent nature Remain in the same place for all configurations of the mechanism None of the listed here Vary with the configuration of the mechanism 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 Chain coupling Universal coupling Flexible coupling Oldham's coupling Chain coupling Universal coupling Flexible coupling Oldham's coupling ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The inversion of a mechanism is Turning its upside down Changing of a higher pair to a lower pair Obtained by fixing different links in a kinematic chain Obtained by reversing the input and output motion Turning its upside down Changing of a higher pair to a lower pair Obtained by fixing different links in a kinematic chain Obtained by reversing the input and output motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In under damped vibrating system, if x₁ and x₂ are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to x₁/x₂ loge(x₁/x₂) log(x₁/x₂) log(x₁.x₂) x₁/x₂ loge(x₁/x₂) log(x₁/x₂) log(x₁.x₂) 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 cosφ (r/2) cosφ r tanφ r sinφ r cosφ (r/2) cosφ r tanφ r sinφ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Minimum number of teeth for involute rack and pinion arrangement for pressure angle of 20° is 10 20 34 30 10 20 34 30 ANSWER DOWNLOAD EXAMIANS APP
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