Theory of Machine The relative velocity of B with respect to A in a rigid link AB is Parallel to AB Along AB At 45° to AB Perpendicular to AB Parallel to AB Along AB At 45° to AB Perpendicular to AB 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 Resonance is caused due to the heavy mass of the rotor Bearing centre line coincides with the axis The system is unbalanced The shafts are rotating at very high speeds Resonance is caused due to the heavy mass of the rotor Bearing centre line coincides with the axis The system is unbalanced ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is 2 4 3 1 2 4 3 1 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In its simplest form, a cam mechanism consists of following number of links 4 3 2 1 4 3 2 1 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) Equal to unity Less than unity Greater than unity Zero Equal to unity Less than unity Greater than unity Zero ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left turn. The effect of gyroscopic couple acting on it will be To raise the stern and lower the bow To lower the bow and stern To raise the bow and lower the stern To raise the bow and stern To raise the stern and lower the bow To lower the bow and stern To raise the bow and lower the stern To raise the bow and stern ANSWER DOWNLOAD EXAMIANS APP
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