TRACKS AND TOWERS INFRATECH Project Manager Interview Questions and Answers

Q1. What is refrigeration cycle? Commissioning stages of Data center?
Ans. 
The refrigeration cycle is a process that removes heat from a space and transfers it to the external environment.
• The refrigeration cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.

• The compressor compresses the refrigerant gas, raising its temperature and pressure.

• The high-pressure refrigerant then flows to the condenser, where it releases heat to the surroundings and conden...read more
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Q2. What is chilled water system? Types of ac system?
Ans. 
A chilled water system is a cooling system that uses chilled water to remove heat from a building or process.
• Chilled water systems use water as a cooling medium.

• They typically consist of a chiller, chilled water pumps, and a distribution system.

• Chilled water is circulated through coils or heat exchangers to cool air or equipment.

• Chilled water systems are commonly used in large commercial buildings, data centers, and in...read more
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Q3. Types of pumps? Types of compressor
Ans. 
Types of pumps include centrifugal pumps, reciprocating pumps, and rotary pumps.
• Centrifugal pumps use centrifugal force to move fluid through a system.

• Reciprocating pumps use a piston or diaphragm to create pressure and move fluid.

• Rotary pumps use rotating mechanisms to transfer fluid.

• Other types of pumps include gear pumps, peristaltic pumps, and vane pumps.
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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
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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. Questions related to my field
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Q1. Salary discussion and
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How to start work and company development

Q1. How do you drive teams for achieving targets ensuring Quality and compliances.
Ans. 1) Morning Project concall 2) Monthly Targets 3) Tracking and monitoring across all projects in all business units
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Q2. How would you adopt & execute culture of best practices across circles
Ans. Replicating the performing circles best practices. Documenting the process and implementing the same in other circles
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Q3. How would you do CAPEX control
Ans. 
CAPEX control involves managing and monitoring capital expenditures to ensure they align with budget and project goals.
• Create a detailed budget for capital expenditures

• Establish a process for reviewing and approving capital expenditure requests

• Regularly monitor and track actual spending against the budget

• Implement controls to prevent unauthorized spending

• Analyze and report on variances between budgeted and actual expen...read more
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Q4. How would you determine the power loading requested by Telecom service provider is below actual energy consumption at site.
Ans. 
To determine if power loading requested by Telecom service provider is below actual energy consumption at site, conduct a power audit.
• Conduct a power audit to measure the actual energy consumption at the site

• Compare the power audit results with the power loading requested by the Telecom service provider

• If the power loading requested is lower than the actual energy consumption, it indicates a discrepancy

• Investigate the ...read more
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Q5. How would you do asset management
Ans. 
Asset management involves tracking and optimizing the lifecycle of assets to maximize their value and minimize costs.
• Create an inventory of all assets, including their details and current condition

• Implement a system to track the location and movement of assets

• Establish maintenance schedules and procedures to ensure assets are well-maintained

• Monitor asset performance and usage to identify opportunities for optimization

• I...read more
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Q6. Guidelines of asset management
Ans. 
Asset management guidelines involve strategic planning, tracking, and maintenance of an organization's assets.
• Develop a comprehensive asset management plan

• Identify and categorize assets

• Establish a system for tracking and monitoring assets

• Implement regular maintenance and inspection procedures

• Ensure proper documentation and record-keeping

• Consider lifecycle management and replacement strategies

• Utilize asset management so...read more
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Example of wherein you maintain balance of Business exigency and compliance at the same time

Q1. Multiple questions in the civil execution.
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Q2. Process the construction work like :- shuttering, steel, concrete and finishing work.
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Q3. Knowledge of BBS
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Q4. Knowledge of mivan shuttering
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Q5. Knowledge of water proofing work
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Q1. About concrete design and technical discussions
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Q1. About salary negotiations
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