Theory of Machine In a reciprocating engine, usually __________ of the reciprocating masses are balanced. Three-fourth Two-third Whole One-half Three-fourth Two-third Whole One-half ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Oldham’s coupling is an inversion of the kinematic chain used in Whitworth quick return mechanism Rotary engine Universal joint Elliptical trammels Whitworth quick return mechanism Rotary engine Universal joint Elliptical trammels ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω₁ rad/s in the clockwise direction and the link OB turns with angular velocity ω₂ rad/s in the anticlockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O) (ω₁ - ω₂) 2r (ω₁ + ω₂) r ω₁.ω₂.r (ω₁ - ω₂) r (ω₁ - ω₂) 2r (ω₁ + ω₂) r ω₁.ω₂.r (ω₁ - ω₂) r 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. Infinity Any -ve value Zero Any +ve value Infinity Any -ve value Zero Any +ve value ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following governor is used to drive a gramophone? Hartnell governor Pickering governor Watt governor Porter governor Hartnell governor Pickering governor Watt governor Porter governor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a pantograph, all the pairs are Self-closed pairs Turning pairs Spherical pairs Sliding pairs Self-closed pairs Turning pairs Spherical pairs Sliding pairs ANSWER DOWNLOAD EXAMIANS APP
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