Test: Parameter Optimization : Servomechanism - Electrical Engineering (EE) MCQ

Explanation: Externally introduced signal is called stimulus that is affecting the controlled output and is a factor also affecting steady state error.

Explanation: An open loop system does not has feedback while the closed loop system has feedback.

Explanation: Perspiration system is a system that is controlling the body temperature of the human body.

Explanation: Control action is the action which is the generated by the system performance and determined by eyes when man walks along the path.

Explanation: Auto-pilot for an aircraft is an example of the closed loop system as the output is the desired destination without the use of any pilot.

Explanation: All of the mentioned can be used as an error detectors as they can give the difference between the current output and desired output.

Explanation: The gain of the system should be increased to make an unstable system stable and for positive feedback of the system the gain is more and for the negative feedback the gain is reduced for which the stable system can become unstable.

Explanation: Integrator that is also the low pass filter reduces or eliminates the steady state error but is causes the slow and sluggish response but tries to eliminate the error.

Explanation: AC servomotor is a type of the two phase induction motor.

Explanation: Overall gain reduces due to negative feedback and due to this reduction in gain the stable system can become unstable but excess increase in the gain causes oscillations to increase.