Petrofac Instrument Engineer Interview Questions and Answers

Electromagnetic flowmeter measures flow rate by using Faraday's law of electromagnetic induction.

• Electromagnetic flowmeter is based on the principle of Faraday's law of electromagnetic induction.

• It consists of a flow tube, electrodes, and a magnetic field.

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

• The electrodes detect the voltage and the magnetic field ens...read more

Interacting systems have feedback loops and can influence each other's behavior, while non-interacting systems operate independently.

• Interacting systems have mutual dependencies and can affect each other's inputs, outputs, or behavior.

• Non-interacting systems operate independently and do not have any influence on each other.

• Interacting systems often involve feedback loops where the output of one system affects the input...read more

I am a dedicated instrumentation engineer with a strong background in designing and implementing control systems.

• Graduated with a degree in Instrumentation Engineering

• Experienced in designing control systems for industrial processes

• Skilled in programming PLCs and SCADA systems

• Worked on projects involving process optimization and automation

• Strong problem-solving and analytical skills

the process of identifying and fixing problems with instruments and control systems. It can involve checking the hardware, software, power supply, and more.

the process of configuring an instrument to provide a result for a sample within an acceptable range.

Calibration, troubleshooting, loop checking

Instrumentation skill refers to the ability to design, install, maintain, and troubleshoot various types of instruments used in industrial processes.

• Understanding of different types of instruments such as sensors, transmitters, controllers, and final control elements

• Knowledge of calibration procedures and techniques

• Ability to read and interpret P&IDs (Piping and Instrumentation Diagrams)

• Proficiency in using softwar...read more

Instrumentation engineers design, develop, install, manage, and maintain instruments used to monitor and control engineering systems.

• Designing and developing instruments for monitoring and controlling processes

• Installing and calibrating instruments in industrial settings

• Managing and maintaining instrumentation systems to ensure proper functioning

• Collaborating with other engineers and technicians to optimize system perf...read more

Oil & Gas standards and instrumentation loop basics.

• Oil & Gas industry follows various standards like API, ISO, etc.

• Instrumentation loop is a closed circuit of sensors, transmitters, controllers, and final control elements.

• It is used to measure and control process variables like temperature, pressure, flow, etc.

• The loop can be either analog or digital and can be configured in various ways like 2-wire, 3-wire, 4-wire, e...read more

Process variable is the measured parameter in a system, while control system is the mechanism used to regulate the process variable.

• Process variable is the input to the control system

• Control system uses feedback to adjust the process variable

• Examples of process variables include temperature, pressure, flow rate

• Examples of control systems include PID controllers, PLCs, DCSs

Tubing fitting size and installation work

• The tubing fitting size should match the size of the tubing being used

• Proper installation techniques should be followed to ensure a secure and leak-free connection

• Common types of tubing fittings include compression, flare, and push-to-connect fittings