Theory of Machine A body is said to be under forced vibrations, when A body vibrates under the influence of external force No external force acts on a body, after giving it an initial displacement None of these There is a reduction in amplitude after every cycle of vibration A body vibrates under the influence of external force No external force acts on a body, after giving it an initial displacement None of these There is a reduction in amplitude after every cycle of vibration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The instantaneous centers which vary with the configuration of mechanism are called None of these Permanent instantaneous centers Fixed instantaneous centers Neither fixed nor permanent instantaneous centers None of these Permanent instantaneous centers Fixed instantaneous centers Neither fixed nor permanent instantaneous centers 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 Critically damped Without vibrations Over-damped Under damped Critically damped Without vibrations Over-damped Under damped ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The lower pair is a Sliding pair Closed pair Point contact pair Open pair Sliding pair Closed pair Point contact pair Open pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine An imaginary circle which by pure rolling action, gives the same motion as the actual gear, is called Pitch circle Addendum circle Clearance circle Dedendum circle Pitch circle Addendum circle Clearance circle Dedendum circle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A universal joint is an example of Lower pair Rolling pair Sliding pair Higher pair Lower pair Rolling pair Sliding pair Higher pair ANSWER DOWNLOAD EXAMIANS APP
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