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 2 1 0.5 0.25 2 1 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 (cos 2θ/n) m.ω².r (sin 2θ/n) m.ω².r cosθ m.ω².r sinθ m.ω².r (cos 2θ/n) m.ω².r (sin 2θ/n) m.ω².r cosθ m.ω².r sinθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A kinematic chain requires at least 4 links and 4 turning pairs 2 links and 3 turning pairs 3 links and 4 turning pairs 5 links and 4 turning pairs 4 links and 4 turning pairs 2 links and 3 turning pairs 3 links and 4 turning pairs 5 links and 4 turning pairs ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to 180° and 270° 90° and 180° 45° and 225° 270° and 360° 180° and 270° 90° and 180° 45° and 225° 270° and 360° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a pantograph, all the pairs are Sliding pairs Turning pairs Self-closed pairs Spherical pairs Sliding pairs Turning pairs Self-closed pairs Spherical pairs ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Bifilar suspension method is used to find the Angular acceleration of the body Frequency of vibration of the body Moment of inertia of the body Periodic time of the body Angular acceleration of the body Frequency of vibration of the body Moment of inertia of the body Periodic time of the body ANSWER DOWNLOAD EXAMIANS APP