Concord Biotech Instrumentation Technician Interview Questions, Process, and Tips

There are various types of pressure gauges used in different industries.

• Mechanical pressure gauges: These gauges use mechanical elements like springs or Bourdon tubes to measure pressure.

• Digital pressure gauges: These gauges provide a digital readout of pressure and often have additional features like data logging.

• Differential pressure gauges: These gauges measure the difference in pressure between two points.

• Absolute ...read more

RTD (Resistance Temperature Detector) works on the principle of change in electrical resistance with temperature.

• RTD measures temperature by sensing the change in electrical resistance of a metal wire or film.

• As the temperature increases, the resistance of the RTD also increases.

• The most common type of RTD is made of platinum (PT100) and has a resistance of 100 ohms at 0 degrees Celsius.

• RTDs are highly accurate and sta...read more

Magnetic flowmeters, also known as mag flowmeters, measure fluid flow by using Faraday's law of electromagnetic induction.

• Mag flowmeters work based on the principle of Faraday's law of electromagnetic induction.

• They consist of a pipe with a magnetic field and electrodes on the sides.

• When a conductive fluid flows through the pipe, it generates a voltage proportional to the flow rate.

• The electrodes measure this voltage a...read more

Control valves are used to regulate the flow of fluids in a process system.

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

• The working principle of control valves involves the use of a valve body, actuator, and positioner.

• The valve body contains a flow passage that can be opened or closed to control the flow of fluid.

• The actuator is responsible ...read more