Theory of Machine The mechanism consisting of three turning pairs and one sliding pair, is called a Single slider crank chain Whitworth quick return motion mechanism Crank and slotted lever quick return motion mechanism All of these Single slider crank chain Whitworth quick return motion mechanism Crank and slotted lever quick return motion mechanism All of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to 270° and 360° 90° and 180° 180° and 270° 45° and 225° 270° and 360° 90° and 180° 180° and 270° 45° and 225° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The contact ratio is given by (Length of the arc of contact)/(Circular pitch) (Length of the path of approach)/(Circular pitch) (Length of the arc of approach)/cosφ (Length of path of recess)/(Circular pitch) (Length of the arc of contact)/(Circular pitch) (Length of the path of approach)/(Circular pitch) (Length of the arc of approach)/cosφ (Length of path of recess)/(Circular pitch) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The dynamic friction is the friction experienced by a body, when the body Is in motion Just begins to slide over the surface of the other body Is at rest None of these Is in motion Just begins to slide over the surface of the other body Is at rest None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the sleeve of a Porter governor moves downwards, the governor speed Remain unaffected Decreases Increases First increases and then decreases Remain unaffected Decreases Increases First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring) (S₁ + S₂) / h (S₁ - S₂) / h (S₁ + S₂) / 2h (S₁ - S₂) / 2h (S₁ + S₂) / h (S₁ - S₂) / h (S₁ + S₂) / 2h (S₁ - S₂) / 2h ANSWER DOWNLOAD EXAMIANS APP
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