Theory of Machine If ω/ωn is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach 90° 360° 0° 180° 90° 360° 0° 180° 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 raise the bow and stern To lower the bow and stern To raise the bow and lower the stern To raise the stern and lower the bow To raise the bow and stern To lower the bow and stern To raise the bow and lower the stern ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of maximum fluctuation of energy to the work-done per cycle is called None of these Fluctuation of energy Coefficient of fluctuation of energy Maximum fluctuation of energy None of these Fluctuation of energy Coefficient of fluctuation of energy Maximum fluctuation of energy ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO, the acceleration of the piston is _________ when the crank OC and connecting rod PC are at right angles to each other. Any -ve value Zero Any +ve value Infinity Any -ve value Zero Any +ve value Infinity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become 16 tp 4 tp tp /4 tp /16 16 tp 4 tp tp /4 tp /16 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A cam with a roller follower would constitute following type of pair Open pair Close pair Lower pair Higher pair Open pair Close pair Lower pair Higher pair ANSWER DOWNLOAD EXAMIANS APP
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