Theory of Machine For a kinematic chain to be considered as mechanism One link should be fixed None of the links should be fixed There is no such criterion Two links should be fixed One link should be fixed None of the links should be fixed There is no such criterion Two links should be fixed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because The shafts are rotating at very high speeds Bearing centre line coincides with the axis Resonance is caused due to the heavy mass of the rotor The system is unbalanced The shafts are rotating at very high speeds Bearing centre line coincides with the axis Resonance is caused due to the heavy mass of the rotor The system is unbalanced ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Klein's construction can be used when Crank has uniform angular acceleration Crank has non-uniform velocity Crank has a uniform angular velocity Crank has uniform angular velocity and angular acceleration Crank has uniform angular acceleration Crank has non-uniform velocity Crank has a uniform angular velocity Crank has uniform angular velocity and angular acceleration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In Meyer's expansion valve, the main valve is driven by an eccentric having an angle of advance from 10°-15° 15°-25° 30°-40° 25°-30° 10°-15° 15°-25° 30°-40° 25°-30° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in Torsional vibrations Longitudinal vibrations Transverse vibrations All of these Torsional vibrations Longitudinal vibrations Transverse vibrations All of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The inversion of a mechanism is 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 Turning its upside down ANSWER DOWNLOAD EXAMIANS APP
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