Havells Electrical Engineer Interview Questions and Answers

Electrical testing for equipment involves verifying functionality and safety through various tests.

• Perform insulation resistance tests to check for any leakage currents

• Conduct continuity tests to ensure proper electrical connections

• Verify voltage and current ratings are within acceptable limits

• Test for proper grounding to prevent electrical hazards

• Use specialized equipment like multimeters and insulation testers

• Documen

Different cable types have varying current carrying capacities and methods of laying, impacting overall electrical system performance.

• Different cable types such as PVC, XLPE, and rubber have different current carrying capacities.

• Current carrying capacity is influenced by factors like conductor size, insulation material, and ambient temperature.

• Methods of laying cables include direct burial, conduit installation, and ov...read more

Implemented best practices in software development lifecycle, including code reviews and automated testing.

• Introduced code reviews to ensure code quality and consistency

• Implemented automated testing to catch bugs early in the development process

• Utilized version control system effectively to track changes and collaborate with team members

Switch configuration involves setting up VLANs, port security, QoS, and other settings to optimize network performance.

• Access the switch's command line interface (CLI) using a console cable or remote access software

• Configure VLANs to segment network traffic and improve security

• Enable port security to prevent unauthorized access to the network

• Set up Quality of Service (QoS) to prioritize network traffic and ensure criti...read more

L2 and L3 switches are network devices used for packet switching. L2 operates at the data link layer and L3 at the network layer.

• L2 switch operates at the data link layer and forwards packets based on MAC addresses

• L3 switch operates at the network layer and forwards packets based on IP addresses

• L2 switch is used for LAN networks while L3 switch is used for both LAN and WAN networks

• L2 switch is faster than L3 switch as ...read more

MPLS is a protocol used for efficient packet forwarding in a network. It is used in WANs and service provider networks.

• MPLS stands for Multiprotocol Label Switching

• It is used to improve the speed and efficiency of network traffic routing

• MPLS uses labels to identify the path that packets should take through the network

• It is commonly used in WANs and service provider networks to provide Quality of Service (QoS) and traff...read more

VLANs are virtual LANs that allow network administrators to group devices together based on their functions or departments.

• VLANs are used to segment a network into smaller, more manageable groups.

• They can be created using network switches or routers.

• Each VLAN has its own broadcast domain and can be configured with its own security policies.

• VLANs can be created based on different criteria such as department, location, o...read more