Theory of Machine In vibration isolation system, if ω/ωn < 2, then for all values of damping factor, the transmissibility will be (where ω = Angular speed of the system, ωn = Natural frequency of vibration of the system) Greater than unity Less than unity Equal to unity Zero Greater than unity Less than unity Equal to unity Zero ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In locomotives, the ratio of the connecting rod length to me crank radius is kept very large in order to Minimize the effect of secondary forces To start the locomotive quickly Have perfect balancing Minimize the effect of primary forces Minimize the effect of secondary forces To start the locomotive quickly Have perfect balancing Minimize the effect of primary forces ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft carrying two rotors at its ends will have No node Three nodes One node Two nodes No node Three nodes One node Two nodes ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A chain comprises of 5 links having 5 joints. Is it kinematic chain? Yes No It is a marginal case Data are insufficient to determine it Yes No It is a marginal case Data are insufficient to determine it ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced force due to revolving masses Varies in direction but constant in magnitude Varies in magnitude but constant in direction Varies in magnitude and direction both Constant in magnitude and direction both Varies in direction but constant in magnitude Varies in magnitude but constant in direction Varies in magnitude and direction both Constant in magnitude and direction both ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load) 0.6253/ √δS 0.5615/ √δS 0.571/ √δS 0.4985/ √δS 0.6253/ √δS 0.5615/ √δS 0.571/ √δS 0.4985/ √δS ANSWER DOWNLOAD EXAMIANS APP
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