Theory of Machine A body is said to be under forced vibrations, when None of these No external force acts on a body, after giving it an initial displacement A body vibrates under the influence of external force There is a reduction in amplitude after every cycle of vibration None of these No external force acts on a body, after giving it an initial displacement A body vibrates under the influence of external force There is a reduction in amplitude after every cycle of vibration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The motion between a pair when limited to a definite direction, irrespective of the direction of force applied, is known as None of these Completely constrained motion Successfully constrained motion Incompletely constrained motion None of these Completely constrained motion Successfully constrained motion Incompletely constrained motion 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 G².I₂ G.I₂ I₂/G I₂/G² G².I₂ G.I₂ I₂/G I₂/G² ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The pitching of a ship produces forces on the bearings which act __________ to the motion of the ship. Vertically and perpendicular Horizontally and parallel Vertically and parallel Horizontally and perpendicular Vertically and perpendicular Horizontally and parallel Vertically and parallel Horizontally and perpendicular ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Klein's construction can be used when Crank has uniform angular velocity and angular acceleration Crank has non-uniform velocity Crank has uniform angular acceleration Crank has a uniform angular velocity Crank has uniform angular velocity and angular acceleration Crank has non-uniform velocity Crank has uniform angular acceleration Crank has a uniform angular velocity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring) (S₁ - S₂) / 2h (S₁ + S₂) / 2h (S₁ - S₂) / h (S₁ + S₂) / h (S₁ - S₂) / 2h (S₁ + S₂) / 2h (S₁ - S₂) / h (S₁ + S₂) / h ANSWER DOWNLOAD EXAMIANS APP
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