Theory of Machine Which of the below are inversions of slider crank mechanism? 1. Oscillating cylinder engine mechanism 2. Toggle mechanism 3. Radial cylinder engine mechanism 4. Quick return mechanism 1, 2 and 3 2, 3 and 4 1, 3 and 4 1, 2 and 4 1, 2 and 3 2, 3 and 4 1, 3 and 4 1, 2 and 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relative velocity of B with respect to A in a rigid link AB is Perpendicular to AB At 45° to AB Parallel to AB Along AB Perpendicular to AB At 45° to AB Parallel to AB Along AB 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 Remain same as before Become equal to 2R Become equal to R/4 Become equal to R/2 Remain same as before Become equal to 2R Become equal to R/4 Become equal to R/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frequency of oscillation of a compound pendulum is 2π. √[(kG² + h²)/gh] (1/2π). √[gh/(kG² + h²)] 2π. √[gh/(kG² + h²)] (1/2π). √[(kG² + h²)/gh] 2π. √[(kG² + h²)/gh] (1/2π). √[gh/(kG² + h²)] 2π. √[gh/(kG² + h²)] (1/2π). √[(kG² + h²)/gh] 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 4 fn 8 fn fn/2 2 fn 4 fn 8 fn fn/2 2 fn ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m). (dx/dt) + (s/m). x = 0. If the roots of this equation are real, then the system will be Over-damped Without vibrations Under damped Critically damped Over-damped Without vibrations Under damped Critically damped ANSWER DOWNLOAD EXAMIANS APP
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