Theory of Machine In S.H.M., acceleration is proportional to Rate of change of velocity All of these Velocity Displacement Rate of change of velocity All of these Velocity Displacement 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 fn/2 8 fn 4 fn 2 fn fn/2 8 fn 4 fn 2 fn 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 Remain same as before Become equal to R/4 Become equal to 2R Become equal to R/2 Remain same as before Become equal to R/4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a point at the end of a link moves with constant angular velocity, its acceleration will have Coriolis component only Radial and tangential components both Radial component only Tangential component only Coriolis component only Radial and tangential components both Radial component only Tangential component only 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 sinφ r tanφ (r/2) cosφ r cosφ r sinφ r tanφ (r/2) cosφ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The lower pair is a Sliding pair Point contact pair Open pair Closed pair Sliding pair Point contact pair Open pair Closed pair ANSWER DOWNLOAD EXAMIANS APP
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