Theory of Machine The periodic time is given by (where ω = Angular velocity of the particle in rad/s) ω/2π π/ω ω × 2π 2π/ω ω/2π π/ω ω × 2π 2π/ω ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A system in dynamic balance implies that The system is also statically balanced There is no critical speed in the system The system is critically damped There will absolutely no wear of bearings The system is also statically balanced There is no critical speed in the system The system is critically damped There will absolutely no wear of bearings ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because Resonance is caused due to the heavy mass of the rotor The shafts are rotating at very high speeds Bearing centre line coincides with the axis The system is unbalanced Resonance is caused due to the heavy mass of the rotor The shafts are rotating at very high speeds Bearing centre line coincides with the axis The system is unbalanced ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m). (dx/dt) + (s/m). x = 0. If the roots of this equation are real, then the system will be Under damped Without vibrations Over-damped Critically damped Under damped Without vibrations Over-damped Critically damped ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The stress induced in a body will be shear stress, when it is subjected to Torsional vibrations Longitudinal vibrations Transverse vibrations None of these Torsional vibrations Longitudinal vibrations Transverse vibrations None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A mechanism _________ for transmitting or transforming motion. None of these Can not be used Unpredictable Can be used None of these Can not be used Unpredictable Can be used ANSWER DOWNLOAD EXAMIANS APP
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