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 3 and 4 All 1, 2 and 3 1 and 2 3 and 4 All 1, 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems DC tachogenerator can be used in Both A and B Neither A nor B Speed control system Position control system Both A and B Neither A nor B Speed control system Position control system ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Nichol’s chart is symmetric about – 180° axis. True False True False ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The permanent magnet field system of brushless dc servo- motor is generally on Stator Rotor Either (a) or (b) Partly on stator and partly on rotor Stator Rotor Either (a) or (b) Partly on stator and partly on rotor 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 circles A family of straight lines Neither (a) nor (b) Either (a) or (b) A family of circles A family of straight lines ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems If the poles lie in second quadrant, damping ratio is 1 less than 1 more than 1 zero 1 less than 1 more than 1 zero ANSWER DOWNLOAD EXAMIANS APP
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