Theory of Machine Angle of action of cam is defined as the angle Of rotation of the cam for a definite displacement of the follower Moved by the cam from the instant the follower begins to rise, till it reaches its highest position Through which the cam rotates during the period in which the follower remains in the highest position Moved by the cam from beginning of ascent to the termination of descent Of rotation of the cam for a definite displacement of the follower Moved by the cam from the instant the follower begins to rise, till it reaches its highest position Through which the cam rotates during the period in which the follower remains in the highest position Moved by the cam from beginning of ascent to the termination of descent ANSWER DOWNLOAD EXAMIANS APP
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 A system of masses rotating in different parallel planes is in dynamic balance if the Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero Resultant couple is equal to zero Resultant force is equal to zero Resultant force and resultant couple are both equal to zero Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero Resultant couple is equal to zero Resultant force is equal to zero Resultant force and resultant couple are both equal to zero ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The main disadvantage of the sliding pair is that it is Difficult to manufacture Bulky Wears rapidly Both (A) and (B) above Difficult to manufacture Bulky Wears rapidly Both (A) and (B) above ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by ω(R - r₁) cosθ ωr₁ sinθ ω(R - r₁) sinθ ωR cosθ ω(R - r₁) cosθ ωr₁ sinθ ω(R - r₁) sinθ ωR cosθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A spring controlled governor is said to be unstable when the controlling force Increases as the radius of rotation increases Increases as the radius of rotation decreases Remains constant for all radii of rotation Decreases as the radius of rotation increases Increases as the radius of rotation increases Increases as the radius of rotation decreases Remains constant for all radii of rotation Decreases as the radius of rotation increases ANSWER DOWNLOAD EXAMIANS APP
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