Theory of Machine It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by Flexible coupling Oldham's coupling Universal joint Knuckle joint Flexible coupling Oldham's coupling Universal joint Knuckle joint ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Flexible coupling is used because It is easy to engage and disengage It prevents shock transmission and eliminates stress reversals It transmits shocks gradually It is easy to disassemble It is easy to engage and disengage It prevents shock transmission and eliminates stress reversals It transmits shocks gradually It is easy to disassemble ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The maximum fluctuation of speed is the Sum of maximum and minimum speeds Variations of speed above and below the mean resisting torque line Difference of the maximum and minimum speeds Difference of minimum fluctuation of speed and the mean speed Sum of maximum and minimum speeds Variations of speed above and below the mean resisting torque line Difference of the maximum and minimum speeds Difference of minimum fluctuation of speed and the mean speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will Become equal to R/2 Become equal to R/4 Remain same as before Become equal to 2R Become equal to R/2 Become equal to R/4 Remain same as before Become equal to 2R ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The main disadvantage of the sliding pair is that it is Wears rapidly Bulky Both (A) and (B) above Difficult to manufacture Wears rapidly Bulky Both (A) and (B) above Difficult to manufacture ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Cross head and guides form a Sliding pair Higher pair Lower pair Turning pair Sliding pair Higher pair Lower pair Turning pair ANSWER DOWNLOAD EXAMIANS APP
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