C&I Engineer Interview Questions and Answers

The number of C&I instruments in work varies depending on the project requirements and scope.

• The number of C&I instruments can range from a few dozen to several hundred in a typical industrial project.

• These instruments include sensors, transmitters, controllers, recorders, and final control elements.

• Examples of C&I instruments include pressure transmitters, temperature sensors, flow meters, level switches, and control valves.

RTD measures temperature using the resistance change of a metal, while thermocouples measure temperature using the voltage generated at the junction of two different metals.

• RTD stands for Resistance Temperature Detector, while thermocouple is a temperature sensor made of two different metals.

• RTDs are more accurate and stable compared to thermocouples.

• RTDs have a linear relationship between resistance and temperature, while thermocouples have a non-linear relationship.

• RTDs are...read more