Theory of Machine Open 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 The maximum efficiency of spiral gears is (where θ = Shaft angle, and φ = Friction angle) cos (θ + φ) + 1/ cos (θ - φ) + 1 sin (θ + φ) + 1/ cos (θ - φ) + 1 cos (θ - φ) + 1/ sin (θ + φ) + 1 cos (θ - φ) + 1/ cos (θ + φ) + 1 cos (θ + φ) + 1/ cos (θ - φ) + 1 sin (θ + φ) + 1/ cos (θ - φ) + 1 cos (θ - φ) + 1/ sin (θ + φ) + 1 cos (θ - φ) + 1/ cos (θ + φ) + 1 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting, use? Spur gear Worm gear Bevel gear Spiral gear Spur gear Worm gear Bevel gear Spiral gear ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A watt's governor can work satisfactorily at speeds from 60 to 80 r.p.m. 80 to 100 r.p.m. 200 to 300 r.p.m. 100 to 200 r.p.m. 60 to 80 r.p.m. 80 to 100 r.p.m. 200 to 300 r.p.m. 100 to 200 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The stress induced in a body will be shear stress, when it is subjected to Longitudinal vibrations None of these Transverse vibrations Torsional vibrations Longitudinal vibrations None of these Transverse vibrations Torsional vibrations ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Instantaneous center of rotation of a link in a four bar mechanism lies on 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 Right side pivot of this link Can’t occur ANSWER DOWNLOAD EXAMIANS APP
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