Automatic Control Systems The relative stability of a system is given by 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 Either (a) or (b) ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems A system is highly oscillatory if Gain margin is high and phase margin is 180° Gain margin is close to 1 Gain margin is high Gain margin is close to 1 or phase margin is zero Gain margin is high and phase margin is 180° Gain margin is close to 1 Gain margin is high Gain margin is close to 1 or phase margin is zero ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In force current analogy, displacement x is analogous to Magnetic flux linkage Voltage Charge Electrostatic energy Magnetic flux linkage Voltage Charge Electrostatic energy ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems If any term in the first column of a Routh array becomes zero, then Routh criterion can be used by substituting a small negative number for zero and complet-ing the array Routh criterion can be used by substituting a big positive number for zero and completing the array Routh criterion can be used by substituting a small positive number for zero and completing the array Routh criterion cannot be used to determine stability Routh criterion can be used by substituting a small negative number for zero and complet-ing the array Routh criterion can be used by substituting a big positive number for zero and completing the array Routh criterion can be used by substituting a small positive number for zero and completing the array Routh criterion cannot be used to determine stability 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 All 3 and 4 1 and 2 1, 2 and 3 All 3 and 4 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems M circles are symmetrical with respect to M = 1 straight line and imaginary axis Real and imaginary axis M = 1 straight line M = 1 straight line and real axis M = 1 straight line and imaginary axis Real and imaginary axis M = 1 straight line M = 1 straight line and real axis ANSWER DOWNLOAD EXAMIANS APP
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