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 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 1 and 2 1, 2 and 3 3 and 4 All 1 and 2 1, 2 and 3 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In force current analogue, mechanical mobility is analogous to Impedance Z Admittance Y Conductance G Reactance X Impedance Z Admittance Y Conductance G Reactance X ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Nyquist stability criterion uses open loop frequency response characteristics. False True False True ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In a two phasor servomotor, the direction of rotation of the rotating field depends on Phase relation of voltages applied to the two stator windings None of these Magnitudes of voltages applied to the two stator windings Both magnitude and phase relationship of voltages applied to the two stator windings Phase relation of voltages applied to the two stator windings None of these Magnitudes of voltages applied to the two stator windings Both magnitude and phase relationship of voltages applied to the two stator windings 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 cannot be used to determine stability 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 can be used by substituting a small negative number for zero and complet-ing the array Routh criterion cannot be used to determine stability 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 ANSWER DOWNLOAD EXAMIANS APP
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