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 All 3 and 4 1 and 2 1, 2 and 3 All 3 and 4 1 and 2 1, 2 and 3 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 big 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 small positive number for zero and completing the array Routh criterion can be used by substituting a big 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 small positive number for zero and completing the array ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The poles with greater displacement from the real axis correspond to Stable response Higher frequencies of oscillations Unbounded output Lower frequencies of oscillations Stable response Higher frequencies of oscillations Unbounded output Lower frequencies of oscillations ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The addition of a pole to the open loop transfer function pulls the root locus To the right To the left and making the system more stable None of these Towards right or left depending on the position of new pole To the right To the left and making the system more stable None of these Towards right or left depending on the position of new pole ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems If poles lie in first quadrant, damping ratio is 1 More than 1 Zero less than 1 1 More than 1 Zero less than 1 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In a simple on-off controller with differential gap, the magnitude of differential gap determines The level of accuracy Both (a) and (b) Neither (a) nor (b) The life of controller The level of accuracy Both (a) and (b) Neither (a) nor (b) The life of controller ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS