Process Instrumentation System

Assignment no. 01

Q1. Explain Selective control scheme.

Q2. Compare and contrast feedback and feedforward control scheme used in process industries.

Q3. With suitable example explain Ratio and override control scheme.

Q4. Suggest a suitable control scheme for reactor pressure control and explain the same.

Assignment no. 02

Q1. Explain one quarter decay ratio and its significance. Explain Ziegler – Nichols and Cohen – Coon method of controller tuning.

Q2. Develop electronic PID controller and explain each part in detail.

Q3. Develop pneumatic PI Controller and explain each part in detail.

Assignment no. 03

Q1. Explain Inverse response behavior of the process with example and also explain inverse response compensator.

Q2. Explain dynamic behavior of first and second order systems.

Q3. Derive expression for dead time process. Also explain Smith’s predictor.

Assignment no. 04

Q1. draw symbols and explain functions of all the elements used in physical ladder diagram.

Q2. Develop physical ladder diagram for master control (On/Off) of a motor with light indicators.

Previous year question papers