Theory of Machine The velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by (where ω = Angular velocity of the cam shaft) ω (r₁ r₂) cosθ ω (r₁ + r₂) sinθ sec2θ ω (r₁ r₂) sinθ ω (r₁ + r₂) cosθ cosec2θ ω (r₁ r₂) cosθ ω (r₁ + r₂) sinθ sec2θ ω (r₁ r₂) sinθ ω (r₁ + r₂) cosθ cosec2θ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The danger of breakage and vibration is maximum Near the critical speed None of these Below the critical speed Above the critical speed Near the critical speed None of these Below the critical speed Above the critical speed 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 primary forces To start the locomotive quickly Minimize the effect of secondary forces Have perfect balancing Minimize the effect of primary forces To start the locomotive quickly Minimize the effect of secondary forces ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frequency of oscillation of a compound pendulum is (1/2π). √[(kG² + h²)/gh] 2π. √[gh/(kG² + h²)] 2π. √[(kG² + h²)/gh] (1/2π). √[gh/(kG² + h²)] (1/2π). √[(kG² + h²)/gh] 2π. √[gh/(kG² + h²)] 2π. √[(kG² + h²)/gh] (1/2π). √[gh/(kG² + h²)] ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When there is a reduction in amplitude over every cycle of vibration, then the body is said to have Damped vibration Under damped vibration Forced vibration Free vibration Damped vibration Under damped vibration Forced vibration Free vibration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The cam follower generally used in aircraft engines is Spherical faced follower Knife edge follower Flat faced follower Roller follower Spherical faced follower Knife edge follower Flat faced follower Roller follower ANSWER DOWNLOAD EXAMIANS APP
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