Theory of Machine The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft) 2π. √(q/I) 2π qI 1/2π (1/2π). √(q/I) 2π. √(q/I) 2π qI 1/2π (1/2π). √(q/I) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When two pulleys of different diameters are connected by means of an open belt, the angle of contact at the ________ pulley must be taken into consideration. None of the listed here Larger Smaller OR Larger Smaller None of the listed here Larger Smaller OR Larger Smaller ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The centre of gravity of a coupler link in a four bar mechanism will experience Only angular acceleration Both linear and angular acceleration Only linear acceleration No acceleration Only angular acceleration Both linear and angular acceleration Only linear acceleration No acceleration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following disciplines provides study of relative motion between the parts of a machine? Mechanisms Theory of machines Applied mechanics Kinematics Mechanisms Theory of machines Applied mechanics Kinematics ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface) μ W R (1/2) μ W R (2/3) μ W R (3/4) μ W R μ W R (1/2) μ W R (2/3) μ W R (3/4) μ W R ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the center of drum, and n = Number of blocks) T₁/T₂ = (μ θ)n T₁/T₂ = [(1 + μ tanθ)/(1 - μ tanθ)]n T₁/T₂ = μ. θ. n T₁/T₂ = [(1 - μ tanθ)/(1 + μ tanθ)]n T₁/T₂ = (μ θ)n T₁/T₂ = [(1 + μ tanθ)/(1 - μ tanθ)]n T₁/T₂ = μ. θ. n T₁/T₂ = [(1 - μ tanθ)/(1 + μ tanθ)]n ANSWER DOWNLOAD EXAMIANS APP
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