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 0.6 0.4 0.8 0.2 0.6 0.4 0.8 0.2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a simple harmonic motion, the velocity vector with respect to displacement vector Leads by 90° Is in phase Leads by 180° Lags by 90° Leads by 90° Is in phase Leads by 180° Lags by 90° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is a pendulum type governor? Porter governor None of these Watt governor Hartnell governor Porter governor None of these Watt governor Hartnell governor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where δ = Deflection of the spring) 1/2π. √(δ/g) 1/2π. √(g/δ) 2π. √(δ/g) 2π. √(g/δ) 1/2π. √(δ/g) 1/2π. √(g/δ) 2π. √(δ/g) 2π. √(g/δ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Any point on a link connecting double slider crank chain will trace a Straight line Parabola Circle Ellipse Straight line Parabola Circle Ellipse ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which one of the following is an exact straight line mechanism using lower pairs? Robert’s mechanism Grasshopper mechanism Peaucellier’s mechanism Watt’s mechanism Robert’s mechanism Grasshopper mechanism Peaucellier’s mechanism Watt’s mechanism ANSWER DOWNLOAD EXAMIANS APP
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