Theory of Machine The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is 6 Hz 6π Hz 3 Hz 3π Hz 6 Hz 6π Hz 3 Hz 3π Hz ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centers will lie on a Rectangle Triangle Straight line Parabolic curve Rectangle Triangle Straight line Parabolic curve ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In S.H.M., the velocity vector w.r.t. displacement vector Leads by 180° Lags by 90° Are in phase Leads by 90° Leads by 180° Lags by 90° Are in phase Leads by 90° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than 0.25 1 2 0.5 0.25 1 2 0.5 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank) m.ω².r (sin 2θ/n) m.ω².r (cos 2θ/n) m.ω².r sinθ m.ω².r cosθ m.ω².r (sin 2θ/n) m.ω².r (cos 2θ/n) m.ω².r sinθ m.ω².r cosθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a rigid link OA, velocity of 'A' w.r.t. 'O' will be At 45° to OA Along AO Parallel to OA Perpendicular to OA At 45° to OA Along AO Parallel to OA Perpendicular to OA ANSWER DOWNLOAD EXAMIANS APP
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