Zawawi Powertech Engineering LLC Interview Questions and Answers

Q1. Basis Electrical Questions like Relation between Voltage and current, Reactive Power, Series Parallel Connections etc
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Q2. About Projects and Internships
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Basic topics like India before covid and after covid, Global warming, Educational System in india

Q1. What is transformer?
Ans. 
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of two coils of wire, known as primary and secondary coils

• Primary coil receives electrical energy and induces a magnetic field

• Magnetic field then induces a voltage in the secondary coil

• Used to step up or step down voltage levels in electrical systems
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Q2. What are the types of Rectifiers?
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Types of rectifiers include half-wave, full-wave, and bridge rectifiers.
• Half-wave rectifier only allows one half of the AC input waveform to pass through

• Full-wave rectifier allows both halves of the AC input waveform to pass through

• Bridge rectifier uses four diodes to rectify the AC input waveform

• Examples include diode rectifiers and semiconductor rectifiers
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Q3. Difference between Synchronous and induction motor
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Synchronous motors have constant speed and require external excitation, while induction motors have variable speed and are self-starting.
• Synchronous motors have a constant speed determined by the frequency of the power supply.

• Induction motors have variable speed depending on the load.

• Synchronous motors require external excitation to generate a magnetic field, while induction motors are self-starting.

• Synchronous motors ...read more
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Q4. What is Ohms law?
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Ohm's law states that the current flowing through a conductor is directly proportional to the voltage across it, and inversely proportional to the resistance of the conductor.
• Ohm's law is represented by the formula: V = I * R, where V is voltage, I is current, and R is resistance.

• It helps in calculating the relationship between voltage, current, and resistance in an electrical circuit.

• For example, if a circuit has a vo...read more
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Q1. Will you ready to go to abroad after 5 years?
Ans. 
Yes, I am open to the possibility of going abroad after 5 years for career advancement and new experiences.
• I am open to exploring international opportunities for career growth.

• I believe working abroad can provide valuable experiences and broaden my perspective.

• I am willing to adapt to new cultures and environments for professional development.
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Q2. Why you have not choose higher education
Ans. 
I chose to start working in the electrical field to gain practical experience and skills rather than pursuing higher education.
• Prefer hands-on learning over theoretical education

• Opportunity to gain real-world experience in the field

• Financial constraints prevented pursuing higher education

• Passionate about electrical work and wanted to start career sooner
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Q3. Family details and Occupation
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Q1. What are the Pump head loss calculation parameters
Ans. 
Pump head loss calculation parameters include friction loss, elevation change, velocity head, and fittings.
• Friction loss due to pipe roughness

• Elevation change between inlet and outlet

• Velocity head due to fluid velocity

• Losses from fittings like elbows, tees, and valves
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Q2. What is the AHU components
Ans. 
AHU components refer to the various parts of an Air Handling Unit that work together to regulate and circulate air in a building.
• Filters - to remove dust and particles from the air

• Coils - for heating or cooling the air

• Fans - to circulate the air

• Dampers - to control the flow of air

• Humidifiers/dehumidifiers - to adjust the humidity levels
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Q3. Which type of blowers are use in AHU
Ans. 
Centrifugal blowers are commonly used in AHUs for their efficiency and ability to handle high volumes of air.
• Centrifugal blowers are preferred for AHUs due to their ability to handle high volumes of air efficiently.

• They are more energy efficient compared to other types of blowers.

• Examples of centrifugal blowers commonly used in AHUs include forward curved, backward inclined, and airfoil designs.
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Q4. What is the difference between primary pump or secondary pump
Ans. 
Primary pump is the main pump responsible for the majority of the pumping work, while secondary pump is a backup pump used in case the primary pump fails.
• Primary pump is the main pump in a system, while secondary pump is a backup pump.

• Primary pump is responsible for the majority of the pumping work, while secondary pump is used only when needed.

• Examples: In a heating system, the primary pump circulates hot water throug...read more
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Q5. What is the AHU valve conection
Ans. 
AHU valve connection refers to the connection of valves in an air handling unit for controlling the flow of air.
• AHU valve connection is essential for regulating the flow of air in an air handling unit.

• Valves are typically connected to the AHU ductwork to control the amount of air entering or exiting the unit.

• Properly connected valves ensure efficient operation of the AHU system.

• Examples of AHU valves include damper val
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Q6. What things are required in chilled water pipe size
Ans. 
Chilled water pipe size requirements depend on flow rate, pressure drop, material, insulation, and system design.
• Flow rate: Determine the required flow rate of chilled water in the system.

• Pressure drop: Calculate the pressure drop to ensure efficient operation.

• Material: Select appropriate pipe material based on temperature and pressure requirements.

• Insulation: Insulate the pipes to prevent heat gain or loss.

• System desi...read more
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Q7. What is the chiller conection
Ans. 
The chiller connection refers to the method by which a chiller unit is connected to a building's HVAC system.
• Chiller connection typically involves piping to transport chilled water from the chiller to the building's air handling units.

• The connection may also include electrical wiring for power supply and control signals.

• Proper chiller connection is crucial for efficient cooling and proper functioning of the HVAC system
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Q1. : What are some of the biggest challenges civil engineers face?
Ans. 
Some of the biggest challenges civil engineers face include managing project budgets, dealing with unexpected site conditions, and ensuring compliance with regulations.
• Managing project budgets effectively to avoid cost overruns

• Dealing with unexpected site conditions such as soil instability or environmental hazards

• Ensuring compliance with regulations and obtaining necessary permits

• Balancing the needs of various stakeho...read more
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Q2. What is your favorite role on a project team? How do you react to a task you're not sure how to approach?
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Q1. Can you tell me about yourself?
Ans. 
I am a dedicated and experienced Project Control Engineer with a strong background in managing project schedules, budgets, and resources.
• Over 5 years of experience in project control and management

• Proficient in using project management software such as Primavera P6 and Microsoft Project

• Skilled in analyzing project data and providing accurate forecasts

• Strong communication and teamwork skills, able to collaborate with cr...read more
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Q2. What are the basics of Primavera?
Ans. 
Primavera is a project management software used for planning, scheduling, and controlling projects.
• Primavera is commonly used in industries such as construction, engineering, and manufacturing.

• It allows users to create project schedules, allocate resources, track progress, and analyze project performance.

• Users can generate reports, monitor costs, and manage risks within the software.

• Primavera offers features like Gantt...read more
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Q3. What types of activities are there?
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Q4. What are the different types of relationships?
Ans. 
Different types of relationships include familial, romantic, professional, and platonic relationships.
• Familial relationships: relationships between family members such as parents, siblings, and children.

• Romantic relationships: intimate relationships between partners or spouses.

• Professional relationships: relationships between colleagues or business partners.

• Platonic relationships: non-romantic relationships based on fr
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Q5. How can you create a schedule?
Ans. 
A schedule can be created by identifying project tasks, estimating durations, sequencing tasks, assigning resources, and setting milestones.
• Identify all project tasks and break them down into smaller, manageable activities.

• Estimate the duration of each task based on historical data or expert judgment.

• Sequence the tasks in the order they need to be completed, considering dependencies between tasks.

• Assign resources to ea...read more
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Q6. What is a look-ahead report?
Ans. 
A look-ahead report is a document that outlines upcoming tasks, potential issues, and solutions for a project.
• Provides a snapshot of upcoming project activities

• Highlights potential roadblocks and proposed solutions

• Helps project team anticipate and plan for future challenges

• Usually covers a short-term period, such as the next week or month
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Q7. What are the steps to create a look-ahead report?
Ans. 
Steps to create a look-ahead report
• Identify the project milestones and deadlines

• Review the project schedule and identify upcoming tasks

• Analyze potential risks and delays

• Update the look-ahead report with current progress and forecasted completion dates

• Communicate the report to stakeholders for awareness and decision-making
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Q8. What are the 14 points of the DCMA (Defense Contract Management Agency)?
Ans. 
The 14 points of the DCMA are guidelines for effective project management in defense contracts.
• Establish clear project objectives and requirements

• Develop a realistic project schedule

• Assign responsibilities and authorities clearly

• Ensure adequate resources are available

• Maintain open communication with stakeholders

• Identify and manage project risks

• Monitor and control project performance

• Implement corrective actions when nec...read more
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Q1. What is earned value management?
Ans. 
Earned value management is a project management technique for measuring project performance and progress.
• Compares actual work completed and costs incurred to planned work and costs

• Helps in forecasting project outcomes based on current performance

• Key metrics include Planned Value (PV), Earned Value (EV), and Actual Cost (AC)

• Formula: EV = % of work completed * Total budget

• Example: If a project is 50% complete and the tot...read more
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Q2. What are the key performance indicators?
Ans. 
Key performance indicators are measurable values that demonstrate how effectively a company is achieving key business objectives.
• KPIs are specific, quantifiable metrics used to track progress towards organizational goals.

• They help in evaluating the success of a project or business by measuring performance in key areas.

• Examples of KPIs for a Project Control Engineer may include project completion time, budget variance,
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Q3. A project scenario was provided, and I was required to identify the key performance indicators.
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Q4. What are the various formulas used to calculate the Budget at Completion (BAC)?
Ans. 
Formulas used to calculate Budget at Completion (BAC) in project control engineering.
• BAC = Planned Value (PV) at completion

• BAC = Actual Cost (AC) + Estimate to Complete (ETC)

• BAC = Budgeted Cost of Work Scheduled (BCWS) + Budgeted Cost of Work Remaining (BCWR)
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Q5. Where do you see yourself in five years?
Ans. 
In five years, I see myself as a senior project control engineer leading a team of professionals and successfully managing complex projects.
• Continuing to enhance my project management skills through advanced training and certifications

• Taking on more responsibilities and leadership roles within the organization

• Successfully completing several high-profile projects and delivering exceptional results

• Mentoring and guiding j...read more
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Q1. What are your salary expectations for this position?
Ans. 
My salary expectations are in line with industry standards for a Project Control Engineer with my level of experience and qualifications.
• Research industry standards for Project Control Engineer salaries

• Consider my level of experience and qualifications

• Be prepared to negotiate based on the overall compensation package offered
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Q2. What are the working hours that are suitable for you?
Ans. 
I am flexible with working hours and can adapt to the needs of the project. I am willing to work overtime when necessary.
• I am open to working flexible hours to accommodate project needs

• I am willing to work overtime when required to meet project deadlines

• I can adjust my schedule to align with team meetings or client requirements
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