Theory of Machine The ratio of the driving tensions for V-belts is __________ times that of flat belts.(Where β = Semi-angle of the groove) cosecβ cosβ secβ sinβ cosecβ cosβ secβ sinβ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at The point of contact An infinite distance on the plane surface The center of the disc The point on the circumference situated vertically opposite to the contact point The point of contact An infinite distance on the plane surface The center of the disc The point on the circumference situated vertically opposite to the contact point ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the below are inversions of slider crank mechanism? 1. Oscillating cylinder engine mechanism 2. Toggle mechanism 3. Radial cylinder engine mechanism 4. Quick return mechanism 1, 2 and 3 1, 2 and 4 2, 3 and 4 1, 3 and 4 1, 2 and 3 1, 2 and 4 2, 3 and 4 1, 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the sleeve of a Porter governor moves upwards, the governor speed Increases Decreases Remain unaffected First increases and then decreases Increases Decreases Remain unaffected First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In order to facilitate starting of locomotive in any position, the cranks of a locomotive with two cylinders, are placed at 120° to each other 45° to each other 90° to each other 180° to each other 120° to each other 45° to each other 90° to each other 180° to each other 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, if N coincides with O, then Acceleration of the piston P is zero and its velocity is maximum Acceleration of the piston P is maximum and its velocity is zero Acceleration and velocity of the piston P is zero Acceleration and velocity of the piston P is maximum Acceleration of the piston P is zero and its velocity is maximum Acceleration of the piston P is maximum and its velocity is zero Acceleration and velocity of the piston P is zero Acceleration and velocity of the piston P is maximum ANSWER DOWNLOAD EXAMIANS APP
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