Theory of Machine When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than 1 2 0.25 0.5 1 2 0.25 0.5 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO, the acceleration of the piston is _________ when the crank OC and connecting rod PC are at right angles to each other. Any -ve value Infinity Zero Any +ve value Any -ve value Infinity Zero Any +ve value 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 Have perfect balancing Minimize the effect of secondary forces Minimize the effect of primary forces To start the locomotive quickly Have perfect balancing Minimize the effect of secondary forces Minimize the effect of primary forces To start the locomotive quickly ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In elliptical trammels One pair turning and three pairs sliding All four pairs are turning Three pairs turning and one pair sliding Two pairs turning and two pairs sliding One pair turning and three pairs sliding All four pairs are turning Three pairs turning and one pair sliding Two pairs turning and two pairs sliding ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The component of the acceleration, parallel to the velocity of the particle, at the given instant is called Radial component Tangential component Coriolis component None of these Radial component Tangential component Coriolis component None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The danger of breakage and vibration is maximum Below the critical speed Above the critical speed Near the critical speed None of these Below the critical speed Above the critical speed Near the critical speed None of these ANSWER DOWNLOAD EXAMIANS APP
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