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 3 and 4 All 1 and 2 1, 2 and 3 3 and 4 All 1 and 2 1, 2 and 3 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 None of these The gain is decreased below lower critical value The gain is increased beyond upper critical value Both A and B None of these The gain is decreased below lower critical value The gain is increased beyond upper critical value Both A and B ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems For type 1 system the velocity lag error is Directly proportional to gain constant Inversely proportional to gain constant Independent of gain constant Inversely proportional to bandwidth of system Directly proportional to gain constant Inversely proportional to gain constant Independent of gain constant Inversely proportional to bandwidth of system ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Bandwidth is proportional to speed of response. False True False True ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The complicated shapes in the polar plots are only due to time constants in the numerator of transfer functions. False True False True ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems For any transfer function, the constant phase angle loci are Either (a) or (b) Neither (a) nor (b) A family of straight lines A family of circles Either (a) or (b) Neither (a) nor (b) A family of straight lines A family of circles ANSWER DOWNLOAD EXAMIANS APP
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