Theory of Machine A spring controlled governor is found unstable. It can be made stable by Decreasing the ball mass Increasing the spring stiffness Decreasing the spring stiffness Increasing the ball mass Decreasing the ball mass Increasing the spring stiffness Decreasing the spring stiffness Increasing the ball mass ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is 18.52 N-s/m 529.2 N-s/m 52.92 N-s/m 1.4 N-s/m 18.52 N-s/m 529.2 N-s/m 52.92 N-s/m 1.4 N-s/m ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The effort of a Porter governor is equal to (where c = Percentage increase in speed, m = Mass of ball, and M = Mass on the sleeve) c/(m + M) g c (m - M) g c/(m - M) g c (m + M) g c/(m + M) g c (m - M) g c/(m - M) g c (m + M) g ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Carnot cycle is a semi-reversible cycle a reversible cycle an irreversible cycle a quasi static cycle a semi-reversible cycle a reversible cycle an irreversible cycle a quasi static cycle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one end is pivoted and other end is connected to it. This mechanism has 5 links 3 links 4 links 2 links 5 links 3 links 4 links 2 links ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of 2 mm 2.50 mm 3.0 mm 2.22 mm 2 mm 2.50 mm 3.0 mm 2.22 mm ANSWER DOWNLOAD EXAMIANS APP
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