Automatic Control Systems A conditionally stable system is stable for the value of gain between two critical values. It is unstable if The gain is decreased below lower critical value The gain is increased beyond upper critical value None of these Both A and B The gain is decreased below lower critical value The gain is increased beyond upper critical value None of these Both A and B ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Lag compensation permits a high gain at low frequencies. False True False True ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In root locus analysis the breakaway and break in points None of these Always occur in complex conjugate pairs lie on the real axis Either lie on the real axis or occur in complex conjugate pairs None of these Always occur in complex conjugate pairs lie on the real axis Either lie on the real axis or occur in complex conjugate pairs ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Which dc servomotor requires strongest permanent magnet? Slotted armature Either A or B Surface wound armature Surface wound with stationary rotor Slotted armature Either A or B Surface wound armature Surface wound with stationary rotor ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Which control action can never be used alone? Derivative Both (b) and (c) Proportional Integral Derivative Both (b) and (c) Proportional Integral ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems For any transfer function, the constant phase angle loci are Neither (a) nor (b) Either (a) or (b) A family of straight lines A family of circles Neither (a) nor (b) Either (a) or (b) A family of straight lines A family of circles ANSWER DOWNLOAD EXAMIANS APP
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