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 12 4/15 1/8 1/24 12 4/15 1/8 1/24 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Open 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 A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become 8 fn 4 fn 2 fn fn/2 8 fn 4 fn 2 fn fn/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In its simplest form, a cam mechanism consists of following number of links 1 3 2 4 1 3 2 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Tangential acceleration direction is May be any one of these Along the angular velocity Perpendicular to angular velocity Opposite to angular velocity May be any one of these Along the angular velocity Perpendicular to angular velocity Opposite to angular velocity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to I₂/G² G².I₂ I₂/G G.I₂ I₂/G² G².I₂ I₂/G G.I₂ ANSWER DOWNLOAD EXAMIANS APP
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