Theory of Machine In a ball bearing, ball and bearing forms a Screw pair Turning pair Spherical pair Rolling pair Screw pair Turning pair Spherical pair Rolling pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The sense of Coriolis component is such that it Leads the sliding velocity vector by 180° Is along the sliding velocity vector Lags the sliding velocity vector by 90° Leads the sliding velocity vector by 90° Leads the sliding velocity vector by 180° Is along the sliding velocity vector Lags the sliding velocity vector by 90° Leads the sliding velocity vector by 90° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to 90° and 180° 270° and 360° 180° and 270° 45° and 225° 90° and 180° 270° and 360° 180° and 270° 45° and 225° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The tractive force in a locomotive with two cylinders is given by (where c = Fraction of reciprocating parts per cylinder, m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, and θ = Angle of inclination of crank to the line of stroke) m.ω².r cosθ m.ω².r sinθ (1 - c).m.ω².r (cosθ - sinθ) m.ω².r (cosθ - sinθ) m.ω².r cosθ m.ω².r sinθ (1 - c).m.ω².r (cosθ - sinθ) m.ω².r (cosθ - sinθ) 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 ωR cosθ ωr₁ sinθ ω(R - r₁) cosθ ω(R - r₁) sinθ ωR cosθ ωr₁ sinθ ω(R - r₁) cosθ ω(R - r₁) sinθ 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 Can’t occur A point obtained by intersection on extending adjoining links Right side pivot of this link Left side pivot of this link Can’t occur A point obtained by intersection on extending adjoining links Right side pivot of this link ANSWER DOWNLOAD EXAMIANS APP
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