Instrument Maintenance Technician Interview Questions and Answers

The output of a transmitter is an electrical signal that carries information about a physical quantity being measured.

• The output can be analog or digital.

• Analog output is a continuous signal that varies in voltage or current.

• Digital output is a discrete signal that represents the measured quantity in binary code.

• Examples of physical quantities that can be measured include temperature, pressure, flow rate, and level.

• The output signal is typically sent to a control system or di...read more

There are various types of control valves used in instrumentation, each serving different purposes.

• There are several types of control valves, including globe valves, butterfly valves, ball valves, and diaphragm valves.

• Each type of control valve has its own unique design and function, such as regulating flow, pressure, or temperature.

• Control valves can be classified based on their action (e.g. linear or rotary), flow characteristics (e.g. equal percentage or linear), and body ...read more