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 Magnetic amplifier is used for Voltage amplification Current amplification Power amplification Frequency amplification Voltage amplification Current amplification Power amplification Frequency amplification ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The relative stability of a system is given by Either (a) or (b) Phase margin alone Both phase and gain margins Gain margin alone Either (a) or (b) Phase margin alone Both phase and gain margins Gain margin alone ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In a simple on-off controller with differential gap, the magnitude of differential gap determines Neither (a) nor (b) The level of accuracy Both (a) and (b) The life of controller Neither (a) nor (b) The level of accuracy Both (a) and (b) The life of controller ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The sensor generally used in incremental optical encoder is LCD LED Either (a) or (b) Photodiode LCD LED Either (a) or (b) Photodiode ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems A system is highly oscillatory if Gain margin is high Gain margin is close to 1 or phase margin is zero Gain margin is close to 1 Gain margin is high and phase margin is 180° Gain margin is high Gain margin is close to 1 or phase margin is zero Gain margin is close to 1 Gain margin is high and phase margin is 180° ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS