Theory of Machine The velocity of the rubbing surface __________ with the distance from the axis of the bearing. Decreases None of these Remain same Increases Decreases None of these Remain same Increases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Higher pairs are those which have Elements of pairs not held together mechanically Two elements that permit relative motion Surface contact between the two elements when in motion Point or line contact between the two elements when in motion Elements of pairs not held together mechanically Two elements that permit relative motion Surface contact between the two elements when in motion Point or line contact between the two elements when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap. Inner edge Corners None of these Outer edge Inner edge Corners None of these Outer edge ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Maximum fluctuation of energy in a flywheel is equal to [where I = Mass moment of inertia of the flywheel, E = Maximum fluctuation of energy, CS = Coefficient of fluctuation of speed, and ω = Mean angular speed = (ω₁ + ω₂)/2] I.ω².CS I.ω.(ω₁ - ω₂) All of these 2.E.CS I.ω².CS I.ω.(ω₁ - ω₂) All of these 2.E.CS ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a ball bearing, ball and bearing forms a Turning pair Spherical pair Screw pair Rolling pair Turning pair Spherical pair Screw pair Rolling pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the Unbalanced forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed Unbalanced couples are caused only at higher speeds Effects of unbalances are directly proportional to the speed Unbalanced forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed Unbalanced couples are caused only at higher speeds Effects of unbalances are directly proportional to the speed ANSWER DOWNLOAD EXAMIANS APP
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