Theory of Machine If the damping factor for a vibrating system is unity, then the system will be Without vibrations Over damped Under damped Critically damped Without vibrations Over damped Under damped Critically damped 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 1.5 1 2 0.5 1.5 1 2 0.5 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is 3π Hz 6 Hz 6π Hz 3 Hz 3π Hz 6 Hz 6π Hz 3 Hz 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 For a kinematic chain to be considered as mechanism One link should be fixed Two links should be fixed There is no such criterion None of the links should be fixed One link should be fixed Two links should be fixed There is no such criterion None of the links should be fixed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a cam drive with uniform velocity follower, the sharp corners of the displacement diagram are rounded off at the beginning and at the end of each stroke. This is done Because of difficulty in manufacturing cam profile In order to have acceleration in beginning and retardation at the end of stroke within the finite limits Because of loose contact of follower with cam surface Because the uniform velocity motion is a partial parabolic motion Because of difficulty in manufacturing cam profile In order to have acceleration in beginning and retardation at the end of stroke within the finite limits Because of loose contact of follower with cam surface Because the uniform velocity motion is a partial parabolic motion ANSWER DOWNLOAD EXAMIANS APP
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