Theory of Machine Higher pairs are those which have Surface contact between the two elements when in motion Elements of pairs not held together mechanically Point or line contact between the two elements when in motion Two elements that permit relative motion Surface contact between the two elements when in motion Elements of pairs not held together mechanically Point or line contact between the two elements when in motion Two elements that permit relative motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which type of gear train is used in clock mechanism to join hour hand and minute hand? Epicyclic gear train Reverted gear train Simple gear train Compound gear train Epicyclic gear train Reverted gear train Simple gear train Compound gear train ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Instantaneous center of rotation of a link in a four bar mechanism lies on Right side pivot of this link Can’t occur Left side pivot of this link A point obtained by intersection on extending adjoining links Right side pivot of this link Can’t occur Left side pivot of this link A point obtained by intersection on extending adjoining links ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The critical speed of a shaft in revolution per second is __________ as that of natural frequency of transverse vibration. None of these Different Unpredictable Same None of these Different Unpredictable Same ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft) (1/2π). √(q/I) 2π. √(q/I) 2π qI 1/2π (1/2π). √(q/I) 2π. √(q/I) 2π qI 1/2π ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The direction of linear velocity of any point on a link with respect to another point on the same link is None of the listed here At 45° to the link joining the points Perpendicular to the link joining the points Parallel to the link joining the points None of the listed here At 45° to the link joining the points Perpendicular to the link joining the points Parallel to the link joining the points ANSWER DOWNLOAD EXAMIANS APP
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