Theory of Machine Cross head and guides form a Higher pair Lower pair Sliding pair Turning pair Higher pair Lower pair Sliding pair Turning pair 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 2R 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 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine At the nodal point in a shaft, the amplitude for torsional vibration will be Maximum Zero Minimum Infinity Maximum Zero Minimum Infinity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is 180° and 360° 0° and 90° Both (A) and (B) None of these 180° and 360° 0° and 90° Both (A) and (B) None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If the damping factor for a vibrating system is unity, then the system will be Critically damped Without vibrations Over damped Under damped Critically damped Without vibrations Over damped Under damped ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become 2 fn fn/2 8 fn 4 fn 2 fn fn/2 8 fn 4 fn ANSWER DOWNLOAD EXAMIANS APP
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