Theory of Machine The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations. Same as More than Less than None of these Same as More than Less than None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In vibration isolation system, if ω/ωn < 2, then for all values of damping factor, the transmissibility will be (where ω = Angular speed of the system, ωn = Natural frequency of vibration of the system) Less than unity Greater than unity Zero Equal to unity Less than unity Greater than unity Zero Equal to unity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A spring controlled governor is said to be unstable when the controlling force Decreases as the radius of rotation increases Remains constant for all radii of rotation Increases as the radius of rotation increases Increases as the radius of rotation decreases Decreases as the radius of rotation increases Remains constant for all radii of rotation Increases as the radius of rotation increases Increases as the radius of rotation decreases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of 2.22 mm 2 mm 2.50 mm 3.0 mm 2.22 mm 2 mm 2.50 mm 3.0 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The behaviour of gases can be fully determined by 4 laws 2 laws 3 laws 1 law 4 laws 2 laws 3 laws 1 law ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force is __________ the primary unbalanced force. Two-third 1/n times n times One-half Two-third 1/n times n times One-half ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS