NCCCL Electrical Engineer Interview Questions and Answers

BMD for sway frame is a diagram showing the variation of bending moment along the length of the frame.

• BMD for sway frame will have a shape similar to a zigzag pattern due to the presence of sway in the frame.

• The bending moment will be maximum at the points where the frame experiences maximum sway.

• The BMD can be drawn by analyzing the internal forces and moments acting on the frame.

Drawing piperack elevations involves creating detailed drawings of the structure from different viewpoints.

• Start by determining the dimensions and layout of the piperack

• Use software like AutoCAD to create accurate and detailed drawings

• Include all necessary details such as pipe sizes, supports, and connections

• Label all components clearly for easy understanding

• Review and revise the drawings as needed for accuracy

I shifted to pursue new opportunities for growth and development in my career.

• Seeking new challenges and responsibilities

• Exploring different industries or technologies

• Relocation for personal reasons or family commitments

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.

Minimum gap between two structures for seismic point of view is typically around 1.5 times the height of the taller structure.

• Minimum gap is usually 1.5 times the height of the taller structure to reduce seismic interaction.

• This gap helps prevent collision or structural damage during an earthquake.

• Building codes and regulations may specify minimum gaps for seismic safety.

• Example: If one building is 100 feet tall, the m...read more