Automatic Control Systems The permanent magnet field system of brushless dc servo- motor is generally on Stator Partly on stator and partly on rotor Rotor Either (a) or (b) Stator Partly on stator and partly on rotor Rotor Either (a) or (b) ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems If the poles lie in second quadrant, damping ratio is 1 zero more than 1 less than 1 1 zero more than 1 less than 1 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems DC tachogenerator can be used in Neither A nor B Both A and B Speed control system Position control system Neither A nor B Both A and B Speed control system Position control system 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 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 big positive number for zero and completing the array 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 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 big positive number for zero and completing the array 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 A system is highly oscillatory if 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° Gain margin is high ANSWER DOWNLOAD EXAMIANS APP
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