L&T Energy Hydrocarbon Electrical & Instrumentation Engineer Interview Questions and Answers

SCADA stands for Supervisory Control and Data Acquisition, while PLC stands for Programmable Logic Controller.

• SCADA is a system used for monitoring and controlling industrial processes in real-time.

• PLC is a type of industrial computer control system that continuously monitors the state of input devices and makes decisions based upon a custom program to control the state of output devices.

• SCADA systems are typically use...read more

I want to join Egis because of their reputation for innovation and commitment to excellence in the field of Electrical & Instrumentation engineering.

• Egis has a strong reputation for innovation and cutting-edge technology in the field of Electrical & Instrumentation engineering.

• I am impressed by Egis' commitment to excellence and their track record of successful projects.

• I believe that joining Egis will provide ...read more

Bus bar schemes are different ways of connecting bus bars in power systems.

• Single bus bar scheme

• Double bus bar scheme

• Main and transfer bus bar scheme

• Ring bus bar scheme

• Breaker and a half scheme

• Mesh bus bar scheme

The equipment sequence for any line bay starts with the circuit breaker and ends with the transformer.

• The circuit breaker is the first equipment in the sequence.

• Next comes the isolator switch.

• After that, the earth switch is operated.

• Then the line disconnector is opened.

• Finally, the transformer is disconnected from the line.

• The sequence is reversed when the line bay is put back into service.