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I applied via Recruitment Consulltant and was interviewed in Jul 2023. There was 1 interview round.
The primary work of a domain is to manage and organize a group of network resources under a single administration.
Domains help in centralizing user accounts and permissions
They provide a way to organize and manage network resources such as computers, servers, and printers
Domains facilitate communication and collaboration within a network
Examples of domain systems include Microsoft Active Directory and LDAP
I appeared for an interview before Mar 2024, where I was asked the following questions.
RMU stands for Ring Main Unit, a compact switchgear used in electrical distribution networks.
Used in medium voltage electrical distribution systems.
Provides protection and control for transformers and feeders.
Typically includes circuit breakers, fuses, and switches.
Commonly found in urban areas for efficient power distribution.
Example: RMUs are often used in substations and industrial sites.
A Ring Main Grid is a network design for electrical distribution, enhancing reliability and efficiency in power supply.
Provides a continuous power supply by connecting multiple distribution points in a loop.
Enhances reliability; if one section fails, power can be rerouted through another path.
Commonly used in urban areas for street lighting and commercial buildings.
Example: A ring main grid in a shopping mall ensures t...
The refrigerant cycle is a thermodynamic process that transfers heat to provide cooling in HVAC systems.
1. Evaporation: Refrigerant absorbs heat from the environment, turning from liquid to gas.
2. Compression: The gaseous refrigerant is compressed, increasing its pressure and temperature.
3. Condensation: The high-pressure gas releases heat to the surroundings, condensing back into a liquid.
4. Expansion: The liquid refr...
Compressors are devices that increase the pressure of gases, essential in HVAC, refrigeration, and various industrial applications.
Reciprocating Compressors: Use pistons to compress gas; common in refrigeration systems.
Rotary Screw Compressors: Utilize two interlocking screws; efficient for continuous operation.
Centrifugal Compressors: Use a rotating disk to increase gas velocity; ideal for large-scale applications.
Scr...
An expansion valve regulates refrigerant flow in HVAC systems, ensuring optimal cooling efficiency and preventing system damage.
Controls refrigerant flow to the evaporator coil, optimizing cooling performance.
Reduces pressure of the refrigerant, allowing it to expand and absorb heat.
Prevents liquid refrigerant from entering the compressor, protecting it from damage.
Types include thermal expansion valves (TXV) and elect...
A VRF (Variable Refrigerant Flow) system is an advanced HVAC technology that provides efficient heating and cooling for buildings.
VRF systems use refrigerant as the cooling and heating medium, allowing for flexible installation.
They can simultaneously heat and cool different zones in a building, enhancing comfort.
Examples include Daikin VRV and Mitsubishi City Multi systems, known for their energy efficiency.
VRF system...
The heat mode function of VRF AC allows for heating spaces by reversing the refrigeration cycle.
Heat mode operates by reversing the refrigerant flow, extracting heat from the outside air.
It can provide simultaneous heating and cooling in different zones, enhancing comfort.
Example: In winter, while one room is heated, another can be cooled, ideal for diverse needs.
VRF systems are energy-efficient, often using inverter t...
Heat mode operation in VRF units allows for efficient heating by reversing the refrigeration cycle.
In heat mode, the VRF system reverses the refrigerant flow to provide heating instead of cooling.
The outdoor unit absorbs heat from the outside air, even in low temperatures.
Heat is transferred to the indoor units, which can be individually controlled for comfort.
This mode is energy-efficient, as it utilizes the heat exch...
A Building Management System (BMS) automates and controls building operations for efficiency and comfort.
Monitors HVAC systems for optimal performance.
Controls lighting systems to enhance energy efficiency.
Integrates security systems like access control and surveillance.
Manages energy consumption and reduces operational costs.
Examples include systems from companies like Honeywell and Johnson Controls.
BMS connects various parameters in AHU units for efficient control and monitoring of HVAC systems.
Temperature Sensors: Monitor supply and return air temperatures.
Humidity Sensors: Control humidity levels for comfort and efficiency.
Airflow Sensors: Measure and control airflow rates through the AHU.
Pressure Sensors: Monitor static pressure in ducts to ensure proper airflow.
Control Valves: Regulate water flow in cooling a...
Superheat in a refrigerant system refers to the temperature increase of vapor refrigerant above its boiling point.
Superheat ensures that the refrigerant vapor is completely vaporized before entering the compressor, preventing damage.
It is measured in degrees Fahrenheit or Celsius above the saturation temperature of the refrigerant.
For example, if the refrigerant's saturation temperature is 40°F, and the vapor temperatu...
Subcooling is the process of cooling refrigerant below its saturation temperature to enhance system efficiency.
Subcooling occurs after the refrigerant has condensed but before it enters the expansion device.
It improves the efficiency of the refrigeration cycle by ensuring that only liquid refrigerant enters the expansion valve.
For example, if the saturation temperature of R-410A is 80°F, subcooling might bring it down ...
A domestic water network in a building distributes potable water for various uses like drinking, cooking, and sanitation.
Consists of pipes, valves, and fixtures that deliver water to different areas of the building.
Includes cold and hot water systems, with separate piping for each.
Connected to the municipal water supply or a private well.
Involves components like water heaters, pumps, and storage tanks.
Must comply with ...
Booster pumps enhance water pressure in plumbing systems, ensuring adequate flow in high-demand areas.
Compensate for low water pressure in municipal supply.
Ensure consistent water flow in multi-story buildings.
Used in irrigation systems to maintain pressure over long distances.
Commonly found in fire protection systems to meet required pressure standards.
DOL and Star Delta starters are methods for starting three-phase induction motors, differing in starting current and torque characteristics.
DOL (Direct On Line) connects the motor directly to the power supply, providing full voltage immediately.
Star Delta reduces the starting current by initially connecting the motor in a star configuration, then switching to delta.
DOL is simpler and cheaper, suitable for smaller motor...
Auto transformer starters reduce voltage for motor starting, while VFDs control speed and torque electronically.
Auto transformer starters provide reduced voltage during startup, minimizing inrush current.
VFDs (Variable Frequency Drives) allow for precise control of motor speed and torque.
Auto transformers are simpler and less expensive but offer limited control compared to VFDs.
VFDs can improve energy efficiency by adj...
Circuit breakers protect electrical circuits from overloads and short circuits, ensuring safety and preventing equipment damage.
Types include Miniature Circuit Breakers (MCBs) for overload protection and Residual Current Circuit Breakers (RCCBs) for earth fault protection.
MCBs automatically switch off when current exceeds a preset limit, preventing overheating and fire hazards.
RCCBs detect imbalances between live and n...
RCCB, MCB, and MPCB are electrical devices that protect circuits from faults, overloads, and short circuits.
RCCB (Residual Current Circuit Breaker) detects earth faults and prevents electric shock.
MCB (Miniature Circuit Breaker) protects against overload and short circuit conditions.
MPCB (Motor Protection Circuit Breaker) safeguards motors from overload, phase failure, and short circuits.
Example: RCCB is crucial in wet...
I applied via Walk-in and was interviewed in Aug 2022. There were 3 interview rounds.
Maintenance plays a crucial role in ensuring the smooth functioning of equipment and facilities in a company.
Maintenance helps prevent breakdowns and reduces downtime.
It ensures the safety of employees and customers by regularly inspecting and repairing equipment.
Maintenance extends the lifespan of assets and reduces the need for costly replacements.
It improves productivity and efficiency by keeping equipment in optima...
Preventive maintenance is important to ensure optimal functioning and prevent breakdowns.
Preventive maintenance helps identify and fix potential issues before they become major problems.
Regular maintenance can extend the lifespan of equipment and reduce the need for costly repairs.
Preventive maintenance can also improve safety and reduce the risk of accidents.
Examples include changing oil in a car, cleaning air filters...
I applied via Walk-in and was interviewed in Nov 2021. There were 4 interview rounds.
BMS commissioning involves testing and verifying the functionality of building automation systems. Troubleshooting is necessary to identify and resolve any issues.
BMS commissioning involves verifying the functionality of HVAC systems, lighting, and other building automation systems.
Testing is done to ensure that the systems are working as intended and meeting the design specifications.
Troubleshooting is necessary to id...
Major problems in FCUs and AHUs include clogged filters, faulty motors, and leaky ducts.
Clogged filters reduce airflow and decrease efficiency.
Faulty motors can cause the unit to stop working or make loud noises.
Leaky ducts can lead to energy waste and poor indoor air quality.
Regular maintenance and inspections can prevent these issues.
Proper installation and sizing of the unit is also important.
Examples of common FCUs...
Compressor lubricants are essential for the proper functioning of HVAC systems. Their boiling point determines their effectiveness.
Compressor lubricants are used to reduce friction and wear between moving parts in HVAC systems.
The boiling point of a lubricant determines its ability to withstand high temperatures without breaking down.
Lubricants with higher boiling points are more effective in high-temperature environme...
Almajal Alarabi Holding interview questions for popular designations
I applied via Naukri.com and was interviewed in Jan 2022. There was 1 interview round.
Yes, I had a delicious sandwich for lunch.
I had a sandwich for lunch
It was delicious
I also had a side of chips
I drank water with my meal
I am a highly motivated individual with a passion for problem-solving and a strong work ethic.
I have a degree in computer science and have worked as a software developer for the past 5 years.
I am skilled in programming languages such as Java, Python, and C++.
I have experience working on both front-end and back-end development projects.
I am a quick learner and enjoy taking on new challenges.
In my free time, I enjoy hiki
Inner join, outer join, and left outer join are types of SQL joins used to combine data from multiple tables.
Inner join returns only the matching rows from both tables
Outer join returns all rows from both tables, with null values for non-matching rows
Left outer join returns all rows from the left table and matching rows from the right table
Example: Inner join - SELECT * FROM table1 INNER JOIN table2 ON table1.id = tabl...
Developed a web-based project management tool for a software company
Used Agile methodology to develop the tool
Implemented features such as task assignment, progress tracking, and team collaboration
Designed a user-friendly interface with drag-and-drop functionality
Integrated with third-party tools such as JIRA and Slack
Received positive feedback from the client and increased team productivity
I recently studied the impact of social media on mental health.
Explored the correlation between social media usage and depression/anxiety
Researched the effects of cyberbullying on mental health
Analyzed the role of social media in promoting positive mental health
Reviewed studies on the benefits and drawbacks of social media use for mental health
Examined strategies for promoting healthy social media habits
I would rate myself 8 in Java and 7 in database.
I have extensive experience in Java programming and have worked on multiple projects using Java.
I am proficient in database management and have worked with various database systems like MySQL and Oracle.
I am constantly learning and improving my skills in both Java and database management.
I have also completed relevant courses and certifications in Java and database manage...
SDLC stands for Software Development Life Cycle. It is a process followed by software development teams to design, develop and test high-quality software.
The phases of SDLC are Planning, Analysis, Design, Development, Testing, Deployment, and Maintenance.
Planning involves defining the project scope, goals, and objectives.
Analysis involves gathering and analyzing requirements.
Design involves creating a detailed design o...
I would like to work in the second phase as it involves implementation and execution.
I prefer to work in the second phase as it involves putting the plan into action.
I enjoy the hands-on experience of executing a project.
The second phase allows me to see the results of my work and make necessary adjustments.
For example, in a software development project, I would like to work in the second phase where I can code and tes...
I am a quick learner with excellent communication and problem-solving skills.
Quick learner
Excellent communication skills
Strong problem-solving skills
The first month in a year is January.
January is the first month in the Gregorian calendar.
It has 31 days.
It is named after the Roman god Janus.
It was a busy day filled with meetings and deadlines.
Had multiple meetings with clients and team members
Worked on completing a project before the deadline
Managed to finish all tasks on my to-do list
Yes, the interviewers were very nice and welcoming.
The interviewers greeted me warmly and made me feel comfortable.
They asked questions in a friendly and conversational tone.
They were patient and gave me time to think before answering.
Overall, I had a positive experience with the interviewers.
Yes, I am prepared for 5-6 more interviews.
I have researched the company and the position thoroughly.
I have practiced answering common interview questions.
I have prepared questions to ask the interviewer.
I am mentally and physically prepared for the interviews.
I am excited for the opportunity to showcase my skills and experience.
I found the PPT to be well-organized and visually appealing.
The use of graphics and images helped to break up the text and keep my attention.
The information was presented in a logical order, making it easy to follow.
The color scheme was pleasing to the eye and not overwhelming.
The charts and graphs were clear and easy to understand.
Overall, the PPT was engaging and informative.
I have achieved several milestones in my career, including increasing sales revenue by 20% and leading a successful project team.
Increased sales revenue by 20% through effective marketing strategies
Led a successful project team to complete a complex project on time and within budget
Received Employee of the Year award for outstanding performance and dedication
Developed and implemented a new customer service program that...
I struggled to adjust to the new academic environment and workload in my first year.
Transitioning from high school to college can be challenging
I had to learn new study habits and time management skills
I sought help from tutors and professors to improve my grades
I tend to overthink, struggle with time management, and can be too self-critical.
Overthinking can lead to analysis paralysis and slow decision-making
Time management can be improved through prioritization and delegation
Self-criticism can hinder confidence and productivity
I don't have the available data.
NO data available.
Nomura is a leading global financial services firm with a strong reputation and diverse range of opportunities.
Nomura has a strong reputation in the financial services industry
The firm offers a diverse range of opportunities for career growth
Nomura has a global presence with offices in over 30 countries
The company values diversity and inclusion in its workforce
Nomura has a strong commitment to corporate social responsi
I am a highly motivated individual with a passion for problem-solving and a strong work ethic.
I have a degree in computer science and have worked as a software engineer for 3 years.
I enjoy learning new technologies and am always looking for ways to improve my skills.
In my free time, I like to read books on personal development and practice yoga.
I am a team player and enjoy collaborating with others to achieve common go
I am proficient in Python and Java.
I have experience in developing web applications using Django framework in Python.
I have also worked on Java projects using Spring framework.
I am familiar with object-oriented programming concepts and data structures.
I have worked on projects involving database management using SQL.
I am constantly learning and improving my skills in these languages.
I have knowledge of various DS, but I personally like Decision Trees.
I have worked with Linear Regression, Logistic Regression, Random Forest, and Decision Trees.
Decision Trees are easy to interpret and visualize.
They can handle both categorical and numerical data.
They can be used for both classification and regression problems.
An example of using Decision Trees is in predicting customer churn for a telecom company.
Hashing is a technique to convert data of arbitrary size to a fixed size. Hash table is a data structure that uses hashing to store data.
Hashing is used to index and retrieve items in a database because it is faster than other methods.
Hash table is a data structure that uses a hash function to map keys to array indices.
Hashing key is the input to the hash function that produces a hash value.
Hashing is used in password ...
My day was good. Previous interviews were challenging but I learned a lot.
Had a productive day at work
Interviewed with two companies last week
One interview was technical and the other was behavioral
Received positive feedback from both companies
Stacks and queues are data structures used to store and manipulate collections of elements.
Stacks follow the Last-In-First-Out (LIFO) principle, where the last element added is the first one to be removed.
Queues follow the First-In-First-Out (FIFO) principle, where the first element added is the first one to be removed.
Examples of stacks include the call stack in programming and the undo/redo feature in text editors.
Ex...
Yes, we can implement queues using two stacks.
We can use two stacks, one for enqueue operation and another for dequeue operation.
To enqueue an element, push it onto the first stack.
To dequeue an element, pop all elements from the first stack and push them onto the second stack, then pop the top element from the second stack.
This ensures that the first element that was enqueued is the first one to be dequeued.
Time compl...
Yes, we can implement circular queues using two stacks.
We can use two stacks to implement a circular queue.
One stack will be used for enqueue operation and the other for dequeue operation.
When the enqueue stack is full, we can transfer all elements to the dequeue stack and vice versa.
This way, we can maintain the circular nature of the queue.
Example: https://www.geeksforgeeks.org/queue-using-stacks/
Heap sort is a comparison-based sorting algorithm that uses a binary heap data structure.
It divides the input into a sorted and an unsorted region.
It repeatedly extracts the maximum element from the unsorted region and inserts it into the sorted region.
It has a worst-case time complexity of O(n log n).
Yes, I know other sorting algorithms.
Examples: Merge Sort, Quick Sort, Heap Sort, Bubble Sort, Insertion Sort, Selection Sort
Each algorithm has its own advantages and disadvantages.
The choice of algorithm depends on the size of the data set and the desired time complexity.
I have knowledge of various DS, but I personally like Decision Trees.
I have worked with Linear Regression, Logistic Regression, Random Forest, and Decision Trees.
Decision Trees are easy to interpret and visualize.
They can handle both categorical and numerical data.
They can be used for both classification and regression problems.
An example of using Decision Trees is in predicting customer churn for a telecom company.
Hashing is a technique to convert data of arbitrary size to a fixed size. Hash table is a data structure that uses hashing to store data.
Hashing is used to index and retrieve items in a database because it is faster than other methods.
Hash table is a data structure that uses a hash function to map keys to array indices.
Hashing key is the input to the hash function that produces a hash value.
Hashing is used in password ...
Stacks and queues are data structures used to store and manipulate collections of elements.
Stacks follow the Last-In-First-Out (LIFO) principle, where the last element added is the first one to be removed.
Queues follow the First-In-First-Out (FIFO) principle, where the first element added is the first one to be removed.
Examples of stacks include the call stack in programming and the undo/redo feature in text editors.
Ex...
Yes, queues can be implemented using stacks.
To implement a queue using stacks, we can use two stacks.
One stack is used for enqueue operation and the other for dequeue operation.
When an element is enqueued, it is pushed onto the enqueue stack.
When an element is dequeued, if the dequeue stack is empty, all elements from the enqueue stack are popped and pushed onto the dequeue stack in reverse order.
This ensures that the ...
Yes, circular queues can be implemented using two stacks.
Use two stacks, one for enqueue and one for dequeue operations.
When enqueueing, push the element onto the enqueue stack.
When dequeuing, if the dequeue stack is empty, pop all elements from the enqueue stack and push onto the dequeue stack.
The front of the queue is the top element of the dequeue stack.
When dequeueing, pop the top element from the dequeue stack.
If ...
Yes, I know several sorting algorithms.
One of the most popular is QuickSort, which uses a pivot element to divide the array into smaller sub-arrays and recursively sorts them.
Another common algorithm is MergeSort, which divides the array into smaller sub-arrays and then merges them back together in sorted order.
InsertionSort is a simple algorithm that iterates through the array and inserts each element into its correct...
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Nomura Holdings
Blackrock
Muthoot Homefin India
Adarsh Credit Co-Operative Society