Automatic Control Systems Which dc servomotor requires strongest permanent magnet? Surface wound with stationary rotor Slotted armature Surface wound armature Either A or B Surface wound with stationary rotor Slotted armature Surface wound armature Either A or B ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In Bode plots the frequency at which two asymptotes meet is called corner frequency. True False True False ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Nyquist stability criterion uses open loop frequency response characteristics. True False True False ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In a two phasor servomotor, the direction of rotation of the rotating field depends on Both magnitude and phase relationship of voltages applied to the two stator windings Phase relation of voltages applied to the two stator windings None of these Magnitudes of voltages applied to the two stator windings Both magnitude and phase relationship of voltages applied to the two stator windings Phase relation of voltages applied to the two stator windings None of these Magnitudes of voltages applied to the two stator windings ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Which of the following can be used as a rotating amplifier in a control system? 1. Amplidyne 2. Separately excited dc generator 3. Synchro 4. Self excited dc generator 1 and 2 All 3 and 4 1, 2 and 3 1 and 2 All 3 and 4 1, 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Integral control action Both (a) and (b) Neither (a) nor (b) May lead to oscillatory response Removes offset Both (a) and (b) Neither (a) nor (b) May lead to oscillatory response Removes offset ANSWER DOWNLOAD EXAMIANS APP