Theory of Machine The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball, and M = Mass on the sleeve) m/(m + M) M/(m + M) (m + M)/M (m + M)/m m/(m + M) M/(m + M) (m + M)/M (m + M)/m 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 The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m). (dx/dt) + (s/m). x = 0. If the roots of this equation are real, then the system will be Over-damped Without vibrations Under damped Critically damped Over-damped Without vibrations Under damped Critically damped ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which one of the following can completely balance several masses revolving in different planes on a shaft? A single mass in one of the planes of the revolving masses A single mass in different planes Two masses in any two planes Two equal masses in any two planes A single mass in one of the planes of the revolving masses A single mass in different planes Two masses in any two planes Two equal masses in any two planes ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load) 0.6253/ √δS 0.5615/ √δS 0.4985/ √δS 0.571/ √δS 0.6253/ √δS 0.5615/ √δS 0.4985/ √δS 0.571/ √δS ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In full depth involute system, the smallest number of teeth in a pinion which meshes with rack without interference is 25 32 12 16 25 32 12 16 ANSWER DOWNLOAD EXAMIANS APP
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