Theory of Machine There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is 1/8 12 1/24 4/15 1/8 12 1/24 4/15 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine For an isochronous Hartnell governor (where r₁ and r₂ = Maximum and minimum radius of rotation of balls respectively, S₁ and S₂ = Maximum and minimum force exerted on the sleeve respectively, and M = Mass on the sleeve) S₁/S₂ = r₁/r₂ S₂/S₁ = r₁/r₂ (m.g + S₁)/(m.g + S₂) = r₁/r₂ (m.g - S₁)/(m.g - S₂) = r₂/r₁ S₁/S₂ = r₁/r₂ S₂/S₁ = r₁/r₂ (m.g + S₁)/(m.g + S₂) = r₁/r₂ (m.g - S₁)/(m.g - S₂) = r₂/r₁ 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 Perpendicular to the link joining the points At 45° to the link joining the points Parallel to the link joining the points None of the listed here Perpendicular to the link joining the points At 45° to the link joining the points Parallel to the link joining the points None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine To obviate axial thrust, following gear drive is used Mutter gears Double helical gears having identical teeth Double helical gears having opposite teeth Single helical gear in which one of the teeth of helix angle a is more Mutter gears Double helical gears having identical teeth Double helical gears having opposite teeth Single helical gear in which one of the teeth of helix angle a is more ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Kinematic pairs are those which have Elements of pairs not held together mechanically Surface contact between the two elements when in motion Point or line contact between the two elements when in motion Two elements that permit relative motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion 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 gear train is used for higher velocity ratios in a small space? Reverted gear train Simple gear train Compound gear train Epicyclic gear train Reverted gear train Simple gear train Compound gear train Epicyclic gear train ANSWER DOWNLOAD EXAMIANS APP
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