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 3 and 4 1 and 2 All 1, 2 and 3 3 and 4 1 and 2 All 1, 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The permanent magnet field system of brushless dc servo- motor is generally on 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) Stator 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 Towards right or left depending on the position of new pole To the left and making the system more stable None of these To the right Towards right or left depending on the position of new pole To the left and making the system more stable None of these ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems For a stable system having two or more gain crossover frequencies the phase margin is measured at the highest crossover frequency. True False True False ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In a simple on-off controller with differential gap, the magnitude of differential gap determines Both (a) and (b) Neither (a) nor (b) The level of accuracy The life of controller Both (a) and (b) Neither (a) nor (b) The level of accuracy The life of controller ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Transport lag usually exists in Thermal, hydraulic and pneumatic systems Hydraulic systems and thermal systems Pneumatic systems Thermal systems Thermal, hydraulic and pneumatic systems Hydraulic systems and thermal systems Pneumatic systems Thermal systems ANSWER DOWNLOAD EXAMIANS APP
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