Feedback Control MCQs January 8, 2026August 9, 2024 by u930973931_answers 10 min Score: 0 Attempted: 0/10 Subscribe 1. What is the primary purpose of feedback in a control system? (A) To increase the systemâs power (B) To measure the systemâs physical properties (C) To reduce the systemâs complexity (D) To provide stability and improve performance 2. In a feedback control system, what is the âfeedback pathâ? (A) The path for external disturbances to enter the system (B) The path for the control signal to the actuator (C) The route through which the output is fed back to the input (D) The measurement path for system performance 3. What is the role of a âfeedback controllerâ? (A) To determine the systemâs frequency response (B) To measure the systemâs output (C) To introduce disturbances into the system (D) To adjust the systemâs input based on the feedback from the output 4. What does a ânegative feedbackâ control system do? (A) Enhances the amplitude of oscillations (B) Increases the systemâs gain (C) Reduces the difference between the desired output and the actual output (D) Increases system error 5. What is a âclosed-loop control systemâ? (A) A system where feedback is used to control the output (B) A system with no feedback (C) A system with multiple input signals (D) A system that does not require an actuator 6. What does the term âopen-loop controlâ mean? (A) Control with multiple inputs (B) Control with feedback (C) Control without feedback (D) Control with external disturbances 7. What is âgainâ in a feedback control system? (A) The systemâs steady-state error (B) The time delay in the system (C) The rate of change of the feedback signal (D) The ratio of the output to the input 8. What is âproportional controlâ? (A) A control action based on future predictions (B) A control action based on past error values (C) A control action that is proportional to the error signal (D) A control action that integrates all past errors 9. In a PID controller, what does the âDâ term represent? (A) Differential action (B) Derivative action (C) Delay action (D) Direct action 10. What is the main purpose of the âintegralâ term in a PID controller? (A) To provide immediate response (B) To improve transient response (C) To predict future errors (D) To eliminate steady-state error