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UPS stands for Uninterruptible Power Supply, a device that provides emergency power to a load when the input power source fails.
UPS devices typically provide power for a short amount of time to allow for proper shutdown of equipment during a power outage.
They can also protect against power surges and fluctuations.
UPS units come in various sizes and capacities, ranging from small units for personal computers to large un...
VRF system stands for Variable Refrigerant Flow system, which is a type of HVAC system that can control the amount of refrigerant flowing to multiple indoor units.
VRF system uses refrigerant as the cooling and heating medium
It can provide individualized comfort control in different zones of a building
The system can adjust the refrigerant flow based on the heating or cooling requirements of each zone
VRF systems are ener...
The starting torque of a DG (diesel generator) is the torque produced by the engine when it starts up.
Staring torque is the torque produced by the engine at the moment of starting.
It is important for ensuring the engine can overcome initial inertia and start rotating.
Staring torque is typically higher than running torque to overcome initial resistance.
Factors affecting starting torque include engine size, design, and l...
The primary winding of a transformer is connected to the input voltage source, while the secondary winding is connected to the output load.
Primary winding is connected to the input voltage source
Secondary winding is connected to the output load
The ratio of turns between primary and secondary windings determines the voltage transformation
The windings are usually insulated to prevent short circuits
The power factor is a measure of how effectively electrical power is being converted into useful work output.
Power factor is the ratio of real power to apparent power in an electrical system.
It is a number between 0 and 1, with 1 indicating perfect efficiency.
Low power factor can result in increased energy costs and inefficient use of electrical power.
Power factor correction techniques can be used to improve power fact...
Reverse a given string
Create an empty string to store the reversed string
Iterate through the original string from end to start and append each character to the new string
Return the reversed string
Collection framework is a set of classes and interfaces that provide a way to store and manipulate groups of objects. Lambda expressions are a way to write concise code for functional interfaces.
Collection framework in Java includes interfaces like List, Set, Map, and classes like ArrayList, HashSet, HashMap.
Lambda expressions in Java allow you to write inline functions for functional interfaces, reducing boilerplate c...
Spring Boot is a framework for building Java-based web applications, while Hibernate ORM is a tool for mapping Java objects to database tables.
Spring Boot is a framework that simplifies the process of building Java-based web applications by providing a set of pre-configured tools and libraries.
Hibernate ORM is a tool that maps Java objects to database tables, allowing developers to interact with databases using object-...
Effective customer service is maintained through clear communication, timely responses, empathy, and going above and beyond to meet customer needs.
Maintain clear and open communication with customers to address their concerns and provide updates on their inquiries.
Respond to customer inquiries and issues in a timely manner to show that their concerns are being taken seriously.
Show empathy towards customers by actively ...
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I applied via Referral and was interviewed before Apr 2023. There were 3 interview rounds.
I applied via Company Website and was interviewed in Sep 2023. There were 3 interview rounds.
2 java coding question woth some java fundamental mcqs
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