Theory of Machine Open pairs are those which have 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 Two elements that permit relative motion Point or line contact between the two elements when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Critical damping is a function of Mass and natural frequency Mass and damping coefficient Damping coefficient and natural frequency Mass and stiffness Mass and natural frequency Mass and damping coefficient Damping coefficient and natural frequency Mass and stiffness ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a screw jack, the effort required to lower the load W is given by P = W cos(α + φ) P = W tan(α - φ) P = W tan(φ - α) P = W tan(α + φ) P = W cos(α + φ) P = W tan(α - φ) P = W tan(φ - α) P = W tan(α + φ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The primary unbalanced force is maximum _________ in one revolution of the crank. Sixteen times Eight times Twice Four times Sixteen times Eight times Twice Four times ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because The Ackerman steering gear consists of turning pairs The Ackerman steering gear is most economical Both (A) and (B) Whole of the mechanism in the Ackerman steering gear is on the back of the front wheels The Ackerman steering gear consists of turning pairs The Ackerman steering gear is most economical Both (A) and (B) Whole of the mechanism in the Ackerman steering gear is on the back of the front wheels ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In vibration isolation system, if ω/ωn < 2, then for all values of damping factor, the transmissibility will be (where ω = Angular speed of the system, ωn = Natural frequency of vibration of the system) Less than unity Greater than unity Zero Equal to unity Less than unity Greater than unity Zero Equal to unity ANSWER DOWNLOAD EXAMIANS APP
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