Theory of Machine If ‘D₁’ and ‘D₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to D₁ D₁/D₂ D₁.D₂ D₂/D₁ D₁ D₁/D₂ D₁.D₂ D₂/D₁ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as Logarithmic decrement Magnification factor Damping factor Damping coefficient Logarithmic decrement Magnification factor Damping factor Damping coefficient ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to 0.8 0.6 0.4 0.2 0.8 0.6 0.4 0.2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The C.G. of a link in any mechanism would experience Linear acceleration No acceleration Angular acceleration Both angular and linear accelerations Linear acceleration No acceleration Angular acceleration Both angular and linear accelerations ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When there is a reduction in amplitude over every cycle of vibration, then the body is said to have Damped vibration Free vibration Forced vibration Under damped vibration Damped vibration Free vibration Forced vibration Under damped vibration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a screw jack, the effort required to lower the load W is given by P = W tan(φ - α) P = W tan(α - φ) P = W tan(α + φ) P = W cos(α + φ) P = W tan(φ - α) P = W tan(α - φ) P = W tan(α + φ) P = W cos(α + φ) ANSWER DOWNLOAD EXAMIANS APP
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