10+ Electrical Research & Development Association Interview Questions and Answers

3G and 4G handover differ in terms of speed, latency, and network architecture.

• 3G handover is circuit-switched while 4G is packet-switched

• 3G handover takes longer due to higher latency

• 4G handover is faster due to improved network architecture

• Example: 3G handover may cause a call to drop while 4G handover allows for seamless transition between towers

• Example: 3G handover may take up to 2 seconds while 4G handover can take less than 100 milliseconds

Different types of cables are used for specific purposes, MCBs vary in ratings and functions, efficiency calculation involves power input and output, load installation depends on load requirements.

• Different types of cables are used based on factors like voltage rating, current carrying capacity, insulation material, and environmental conditions.

• Examples of different types of cables include PVC cables, XLPE cables, armored cables, and flexible cables.

• MCBs (Miniature Circuit Br...read more

LTE handover is faster and smoother than 3G handover.

• LTE handover is based on IP address while 3G handover is based on circuit-switched technology.

• LTE handover takes less than 50 milliseconds while 3G handover takes around 300 milliseconds.

• LTE handover supports seamless handover between different types of networks, such as LTE to Wi-Fi, while 3G handover does not.

• LTE handover is more efficient in terms of resource utilization compared to 3G handover.

• Example: When a user moves...read more

MME helps in handover by ensuring seamless transfer of user context and session information.

• MME (Mobility Management Entity) ensures that the user's context and session information is transferred to the target eNodeB (Evolved Node B) during handover.

• This helps in maintaining the continuity of the user's ongoing session without any interruption.

• MME also coordinates with the source eNodeB to release the resources allocated to the user before the handover.

• This helps in efficient...read more

The profile handling and way of working for the Deputy Manager role involves managing teams, coordinating tasks, and implementing strategies.

• Managing and leading teams to achieve goals

• Coordinating tasks and ensuring smooth workflow

• Implementing strategies to improve efficiency and productivity

• Monitoring and evaluating performance

• Communicating effectively with team members and stakeholders

• Providing guidance and support to team members

• Handling conflicts and resolving issues

• Adapt...read more

LTE layers and QoS play a crucial role in managing large traffic.

• LTE has three main layers: the physical layer, the data link layer, and the network layer.

• QoS ensures that the network can handle the traffic demands of different applications and users.

• During large traffic, QoS prioritizes traffic based on its importance and allocates resources accordingly.

• For example, video streaming may be given higher priority than email traffic.

• LTE also uses techniques like carrier aggregat...read more

I manage my customers by understanding their needs and providing excellent service.

• Listen actively to their concerns and feedback

• Provide personalized solutions to their problems

• Maintain a positive and professional attitude

• Follow up with them to ensure satisfaction

• Build long-term relationships with them

• Example: If a customer is unhappy with a product, offer a replacement or refund and apologize for the inconvenience.

The 15kva DG can take a load of up to 12kW.

• The capacity of a 15kva DG is 15kW.

• The maximum load it can take is usually around 80% of its capacity.

• Therefore, a 15kva DG can take a load of up to 12kW.

• This may vary depending on the specific model and manufacturer.

LTE nodes are responsible for providing wireless communication services to mobile devices.

• LTE nodes include eNodeB (base station) and MME (Mobility Management Entity).

• eNodeB is responsible for radio transmission and reception.

• MME is responsible for authentication, security, and mobility management.

• Other LTE nodes include SGW (Serving Gateway) and PGW (Packet Data Network Gateway).

• SGW is responsible for routing data between eNodeB and PGW.

• PGW is responsible for connecting LTE ...read more

LLVD and BLVD are abbreviations for Low Level and Base Level Ventilation Ducts respectively.

• LLVD is used for ventilation at lower levels of a building, while BLVD is used for ventilation at the base level.

• LLVD is typically used in areas such as car parks, while BLVD is used in areas such as basements.

• Both types of ducts are designed to remove stale air and replace it with fresh air to maintain a healthy environment.

• Proper maintenance and cleaning of these ducts is essential t...read more

Different types of electrical theory include Ohm's Law, Kirchhoff's Laws, and electromagnetic theory.

• Ohm's Law relates voltage, current, and resistance in a circuit (V = IR)

• Kirchhoff's Laws include Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL)

• Electromagnetic theory explains the relationship between electricity and magnetism