FOX Solutions Instrument Engineer Interview Questions and Answers

Steam drum level transmitter measures the level of water in the steam drum using differential pressure.

• Uses differential pressure to measure the level of water in the steam drum

• Consists of two pressure sensors, one at the bottom and one at the top of the drum

• The difference in pressure between the two sensors is proportional to the level of water in the drum

• Common types include capacitance, ultrasonic, and radar transmi

Soft tags are assigned in software while hard tags are assigned in hardware.

• Soft tags are used for variables that are not directly connected to hardware.

• Hard tags are used for variables that are directly connected to hardware.

• Soft tags can be assigned through the DCS software.

• Hard tags are assigned through the hardware configuration.

• Examples of soft tags include calculated values and setpoints.

• Examples of hard tags inc

A control valve is a device used to regulate the flow of fluid or gas in a system.

• Control valves are used in various industries such as oil and gas, chemical, and power generation.

• They can be operated manually, electrically, or pneumatically.

• Control valves can be classified into different types such as globe valves, ball valves, and butterfly valves.

• They are essential components in a control loop that helps maintain pr...read more

Control valves regulate the flow of fluids or gases in a process system.

• Control valves have a valve body, actuator, and positioner.

• The valve body contains the flow path and the valve plug.

• The actuator provides the force to move the valve plug.

• The positioner ensures the valve is in the correct position.

• Control valves can be operated manually or automatically.

• Examples of control valves include globe valves, butterfly val