Jio Electrical Engineer Interview Questions and Answers

Preventive maintenance is the best method to ensure equipment longevity and avoid unexpected breakdowns.

• Regularly inspect and clean equipment

• Replace worn out parts before they fail

• Follow manufacturer's maintenance schedule

• Train personnel on proper use and maintenance

• Implement a computerized maintenance management system (CMMS)

• Monitor equipment performance and track maintenance history

A Switch Mode Power Supply (SMPS) efficiently converts electrical power using high-frequency switching.

• SMPS operates by switching on and off rapidly to control output voltage.

• It is more efficient than linear power supplies, reducing heat generation.

• Commonly used in computers, televisions, and chargers.

• Examples include ATX power supplies in PCs and adapters for laptops.

Electrical work involves systematic procedures and safety measures to ensure safe and efficient operations.

• 1. Planning: Assess project requirements and create a detailed plan.

• 2. Design: Develop electrical schematics and select appropriate materials.

• 3. Installation: Follow codes and standards during installation, e.g., NEC.

• 4. Testing: Conduct tests to ensure functionality and safety, like insulation resistance test...read more

Fuses and circuit breakers are safety devices used to protect electrical circuits from overloads and short circuits.

• Fuses are designed to melt and break the circuit when there is an overload or short circuit, preventing damage to the circuit or equipment.

• Circuit breakers are switches that automatically trip when there is an overload or short circuit, cutting off the flow of electricity.

• Fuses need to be replaced af...read more

PMU stands for Phasor Measurement Unit.

• PMU is a device used in power systems to measure electrical quantities such as voltage, current, and frequency.

• It provides synchronized phasor measurements, which are used for real-time monitoring and control of the power grid.

• PMUs are typically installed at key locations in the power system, such as substations or power plants.

• The measurements from PMUs are used for applicat...read more

The function of a residence is to provide shelter, security, and comfort for individuals or families.

• Provides shelter from the elements

• Offers security and privacy

• Creates a comfortable living environment

• Can serve as a place for socializing and relaxation

DG Automation refers to the automation of Diesel Generator systems.

• DG Automation involves the use of control systems and software to monitor and control the operation of Diesel Generator sets.

• It helps in optimizing the performance and efficiency of the DG sets.

• DG Automation can include features like remote monitoring, automatic start/stop, load sharing, fault detection, and protection.

• It can also involve integrati...read more