Theory of Machine The velocity of sliding of meshing gear teeth is (Where ω₁ and ω₂ are angular velocities of meshing gears and ‘y’ is distance between point of contact and the pitch point) (ω₁ × ω₂) y (ω₁ + ω₂) y (ω₁/ω₂) y (ω₁ + ω₂)/y (ω₁ × ω₂) y (ω₁ + ω₂) y (ω₁/ω₂) y (ω₁ + ω₂)/y ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Higher pairs are those which have Two elements that permit relative motion Point or line contact between the two elements when in motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion Two elements that permit relative motion Point or line contact between the two elements when in motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the Radius of journal Angular velocity of journal Clearance between journal and bearing Magnitude of the forces on journal Radius of journal Angular velocity of journal Clearance between journal and bearing Magnitude of the forces on journal ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The displacement of a flat faced follower when it has contact with the flank of a circular arc cam, is given by (where R = Radius of flank, r₁ = Minimum radius of the cam, and θ = Angle turned through by the cam) R (1 - sinθ) (R - r₁) (1 - sinθ) (R - r₁) (1 - cosθ) R (1 - cosθ) R (1 - sinθ) (R - r₁) (1 - sinθ) (R - r₁) (1 - cosθ) R (1 - cosθ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from 50°- 60° 80°- 90° 60°-70° 70°- 80° 50°- 60° 80°- 90° 60°-70° 70°- 80° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When two links are connected by a pin joint, their instantaneous center lies At the center of circle At the center of curvature At the pin joint On their point of contact At the center of circle At the center of curvature At the pin joint On their point of contact ANSWER DOWNLOAD EXAMIANS APP
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