Reliance Industries Senior Instrument Engineer Interview Questions, Process, and Tips

I am an experienced Instrument Engineer with a passion for problem-solving and a track record of successful project delivery.

• I have over 10 years of experience in the field of instrumentation, working on projects ranging from small-scale upgrades to large-scale installations.

• I am skilled in the use of a variety of instrumentation software and hardware, including PLCs, DCSs, and SCADA systems.

• I have a strong understandi...read more

In our plant, we have a wide range of instruments including pressure transmitters, temperature sensors, flow meters, level indicators, control valves, and analyzers.

• Pressure transmitters

• Temperature sensors

• Flow meters

• Level indicators

• Control valves

• Analyzers

Mass flow meter measures the mass flow rate of a fluid in a pipeline.

• Mass flow meter works on the principle of Coriolis effect or thermal dispersion.

• It measures the mass flow rate of a fluid in a pipeline.

• The fluid flows through a vibrating tube and the frequency of vibration is proportional to the mass flow rate.

• It is commonly used in industries such as oil and gas, chemical, and food processing.

• It provides accurate a

Last issue faced was with a pressure transmitter.

• The pressure transmitter was giving erratic readings.

• Checked the wiring and found a loose connection.

• Tightened the connection and calibrated the transmitter.

• Verified the readings and ensured proper functioning of the instrument.

Radar level gauge uses electromagnetic waves to measure the level of liquid or solid in a tank or vessel.

• Radar level gauge emits high-frequency electromagnetic waves towards the surface of the liquid or solid in the tank.

• The waves are reflected back to the gauge by the surface of the liquid or solid.

• The time taken for the waves to travel to the surface and back is measured and used to calculate the level of the liquid ...read more

The device which generates microwave in radar is called a magnetron.

• Magnetron is a type of vacuum tube that generates microwaves using the interaction of a stream of electrons with a magnetic field.

• It is commonly used in radar systems, microwave ovens, and other electronic devices that require high-frequency electromagnetic waves.

• Examples of radar systems that use magnetrons include weather radar, air traffic control r

Control valve components, characteristics, and applications

• Control valve components include actuator, positioner, and valve body

• Characteristics include linear, equal percentage, and quick opening

• Linear valves are used for on/off applications, equal percentage for modulating flow, and quick opening for emergency shutdown

• Applications include oil and gas, chemical, and power generation industries

The holes in the metal pipe inside the tank for radar gauge are for pressure equalization.

• The holes allow the pressure inside the pipe to equalize with the pressure inside the tank.

• This prevents any false readings due to pressure differences.

• The number and size of the holes are designed based on the tank size and fluid properties.

• The holes also prevent any vacuum formation inside the tank during fluid withdrawal.

• Exampl...read more

Various instruments and their makes

• Pressure Transmitter - Rosemount, Yokogawa, Honeywell

• Flow Meter - Endress+Hauser, Siemens, Emerson

• Temperature Transmitter - ABB, Siemens, Yokogawa

• Level Transmitter - Vega, Magnetrol, Krohne