Theory of Machine A spring controlled governor is found unstable. It can be made stable by Decreasing the ball mass Decreasing the spring stiffness Increasing the spring stiffness Increasing the ball mass Decreasing the ball mass Decreasing the spring stiffness Increasing the spring stiffness Increasing the ball mass 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 The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is 3 2 1 4 3 2 1 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The lead screw of a lathe with nut forms a Turning pair Screw pair Rolling pair Sliding pair Turning pair Screw pair Rolling pair Sliding pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a multiple V-belt drive, if one of the belts is broken, then we should replace All the belts The broken belt only None of these The broken belt and the belts on either side of it All the belts The broken belt only None of these The broken belt and the belts on either side of it ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Instantaneous center of rotation of a link in a four bar mechanism lies on A point obtained by intersection on extending adjoining links Left side pivot of this link Right side pivot of this link Can’t occur A point obtained by intersection on extending adjoining links Left side pivot of this link Right side pivot of this link Can’t occur ANSWER DOWNLOAD EXAMIANS APP
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