Theory of Machine The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing) (r/2) cosφ r tanφ r sinφ r cosφ (r/2) cosφ r tanφ r sinφ r cosφ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is 1/8 4/15 1/24 12 1/8 4/15 1/24 12 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Transmission angle is the angle between Output link and fixed link Input link and fixed link Output link and coupler Input link and coupler Output link and fixed link Input link and fixed link Output link and coupler Input link and coupler ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of maximum fluctuation of energy to the work-done per cycle is called None of these Maximum fluctuation of energy Coefficient of fluctuation of energy Fluctuation of energy None of these Maximum fluctuation of energy Coefficient of fluctuation of energy Fluctuation of energy ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to Reduce vibration Ensure proper alignment Ensure uniform loading Reduce slip Reduce vibration Ensure proper alignment Ensure uniform loading Reduce slip 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 the equation are __________ then the system will be under damped. Real None of these Equal Complex conjugate Real None of these Equal Complex conjugate ANSWER DOWNLOAD EXAMIANS APP
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