Process Control MCQ

Q1. What is the primary purpose of process control?

Q2. Which of the following term correctly represents transient nature of a process?

Q3. In feedback control, the action is based on:

Q4. The device that compares measured value with setpoint is called:

Q5. Proportional control action is:

Q6. In a PI controller, "I" stands for:

Q7. Derivative control action anticipates:

Q8. Which is an example of final control element?

Q9. Dead time in control system refers to:

Q10. The process variable in a temperature control system is:

Q11. Feedforward control aims to:

Q12. Reset windup occurs in:

Q13. The transfer function relates:

Q14. In process control, hysteresis means:

Q15. The steady-state error in a control system is:

Q16. A controller that reduces steady-state error is:

Q17. In a cascade control system, the primary controller is:

Q18. Which sensor measures flow rate?

Q19. The valve used for proportional control is:

Q20. What does a PID controller use?

Q21. An advantage of feedforward control is:

Q22. Which term describes system stability?

Q23. Process gain is:

Q24. Tuning a PID controller involves adjusting:

Q25. Which control mode eliminates offset error?

Q26. In a control loop, actuator is:

Q27. What is the function of a transmitter?

Q28. Which characteristic curve shows controller output vs error?

Q29. Integral time constant represents:

Q30. The term "reset" in control terminology refers to:

Q31. Overshoot in control system is:

Q32. In PID tuning, which term helps reduce overshoot?

Q33. Valve positioner is used to:

Q34. Dead time compensation can be achieved using:

Q35. Proportional band is:

Q36. Process variable deviation from setpoint is called:

Q37. Which controller mode reacts to rate of error change?

Q38. In control loops, which sensor has fastest response?

Q39. Which instrument measures pressure in process control?

Q40. The effect of saturation in a control valve is: