Automatic Control Systems DC tachogenerator can be used in Both A and B Neither A nor B Position control system Speed control system Both A and B Neither A nor B Position control system Speed control system ANSWER DOWNLOAD EXAMIANS APP
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 Nyquist stability criterion uses open loop frequency response characteristics. True False True False 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, 2 and 3 3 and 4 1 and 2 All 1, 2 and 3 3 and 4 1 and 2 All ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Integral control action Removes offset 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 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Which control action can never be used alone? Both (b) and (c) Derivative Integral Proportional Both (b) and (c) Derivative Integral Proportional ANSWER DOWNLOAD EXAMIANS APP
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