Theory of Machine If ω/ωn is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach 90° 0° 180° 360° 90° 0° 180° 360° ANSWER DOWNLOAD EXAMIANS APP
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 sinφ (r/2) cosφ r cosφ r tanφ r sinφ (r/2) cosφ r cosφ r tanφ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A spring controlled governor is found unstable. It can be made stable by Decreasing the ball mass Decreasing the spring stiffness Increasing the ball mass Increasing the spring stiffness Decreasing the ball mass Decreasing the spring stiffness Increasing the ball mass Increasing the spring stiffness ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The periodic time is given by (where ω = Angular velocity of the particle in rad/s) 2π/ω π/ω ω/2π ω × 2π 2π/ω π/ω ω/2π ω × 2π ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The maximum fluctuation of speed is the Difference of minimum fluctuation of speed and the mean speed Sum of maximum and minimum speeds Difference of the maximum and minimum speeds Variations of speed above and below the mean resisting torque line Difference of minimum fluctuation of speed and the mean speed Sum of maximum and minimum speeds Difference of the maximum and minimum speeds Variations of speed above and below the mean resisting torque line ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a locomotive, the resultant unbalanced force due to the two cylinders along the line of stroke, is known as None of these Hammer blow Tractive force Swaying couple None of these Hammer blow Tractive force Swaying couple ANSWER DOWNLOAD EXAMIANS APP
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