Theory of Machine A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is 5,367 r.p.m. 9,360 r.p.m. 12,000 r.p.m. 6,000 r.p.m. 5,367 r.p.m. 9,360 r.p.m. 12,000 r.p.m. 6,000 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency of vibrations, then the transmissibility of vibration will the 1 1.5 2 0.5 1 1.5 2 0.5 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The inversion of a mechanism is Turning its upside down Changing of a higher pair to a lower pair Obtained by fixing different links in a kinematic chain Obtained by reversing the input and output motion Turning its upside down Changing of a higher pair to a lower pair Obtained by fixing different links in a kinematic chain Obtained by reversing the input and output motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A pantograph is a mechanism with Rolling pairs Higher pairs Lower pairs Turning pairs Rolling pairs Higher pairs Lower pairs Turning pairs ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a simple harmonic motion, the velocity vector with respect to displacement vector Leads by 90° Leads by 180° Lags by 90° Is in phase Leads by 90° Leads by 180° Lags by 90° Is in phase ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is a pendulum type governor? None of these Hartnell governor Porter governor Watt governor None of these Hartnell governor Porter governor Watt governor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS