Nasser S. Al Hajri Corporation Electrical Engineer Interview Questions and Answers for Freshers

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.

Harness routing involves planning the layout of electrical cables for optimal performance and safety in devices.

• Minimize bends and twists to reduce signal loss and wear on cables.

• Maintain separation between power and signal wires to prevent interference.

• Use protective conduits in high-stress areas to enhance durability.

• Consider thermal management by routing away from heat sources.

• Plan for accessibility to facilitate ma

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

• Ohm's law is represented by the equation I = V/R, where I is the current, V is the voltage, and R is the resistance.

• It is named after Georg Simon Ohm, a German physicist who first formulated this law.

• This law is applicable to all types of circuits, including DC and AC circuits.

• It is use...read more

I manage pressure by prioritizing tasks, maintaining clear communication, and practicing stress-relief techniques.

• Prioritization: I use tools like the Eisenhower Matrix to identify urgent and important tasks, ensuring I focus on what truly matters.

• Time Management: I break projects into smaller tasks with deadlines, which helps me avoid feeling overwhelmed.

• Clear Communication: I keep stakeholders informed about progress...read more