10+ Hvac Site Engineer Interview Questions and Answers

HEPA filters are used in clean room applications with a minimum efficiency of 99.97% for particles as small as 0.3 microns.

• HEPA filters are commonly used in clean room applications

• HEPA filters have a minimum efficiency of 99.97% for particles as small as 0.3 microns

• ULPA filters are also used in some clean room applications and have a minimum efficiency of 99.999% for particles as small as 0.12 microns

Refrigeration cycles are processes that remove heat from a space and transfer it elsewhere.

• The vapor compression cycle is the most common refrigeration cycle used in HVAC systems.

• The absorption cycle uses a refrigerant that is absorbed into a solution and then released through heat.

• The steam jet cycle uses steam to create a vacuum and remove heat from a space.

• The air cycle uses compressed air to cool a space.

• The thermoelectric cycle uses a solid-state device to transfer heat....read more

Basic HVAC systems include ventilation, heat load calculations, and VRV diagrams.

• Ventilation is the process of exchanging indoor air with outdoor air to improve air quality.

• Heat load calculations are used to determine the amount of heating or cooling needed for a space.

• VRV (Variable Refrigerant Volume) diagrams show the flow of refrigerant in a system with multiple indoor units connected to one outdoor unit.

I have 5 years of experience as an HVAC Site Engineer. I have worked on projects with 50+ machines and have experience in preparing BOQ details.

• 5 years of experience as an HVAC Site Engineer

• Worked on projects with 50+ machines

• Experience in preparing BOQ details

Relative humidity is the amount of moisture in the air compared to the maximum amount it can hold at a given temperature.

• Relative humidity is expressed as a percentage.

• Higher relative humidity means the air is holding more moisture.

• Relative humidity affects how comfortable we feel in a room.

• HVAC systems can control relative humidity levels in a building.

• Low relative humidity can cause dry skin, static electricity, and other issues.

• High relative humidity can lead to mold growt...read more

GPM can be calculated by dividing the flow rate in gallons by the time in minutes.

• Calculate the flow rate in gallons per minute (GPM)

• Determine the time in minutes

• Divide the flow rate by the time to get GPM

• Formula: GPM = Flow rate (gallons) / Time (minutes)

• Example: If the flow rate is 600 gallons and the time is 10 minutes, GPM = 600 / 10 = 60

HVAC system stands for Heating, Ventilation, and Air Conditioning system, which is used to control the temperature, humidity, and air quality in a building.

• HVAC system includes components such as furnaces, air conditioners, heat pumps, ductwork, and thermostats.

• It is designed to provide thermal comfort and acceptable indoor air quality.

• HVAC systems can be used in residential, commercial, and industrial buildings.

• Regular maintenance of HVAC systems is important to ensure effic...read more

HVAC stands for heating, ventilation, and air conditioning. It refers to the systems used to control the temperature, humidity, and air quality in buildings.

• HVAC systems are responsible for heating and cooling buildings to maintain a comfortable environment for occupants.

• Ventilation systems help circulate and filter air to improve indoor air quality.

• Air conditioning systems remove heat from indoor spaces to cool them down.

• Examples of HVAC equipment include furnaces, air condi...read more

I have 8 years of experience in HVAC engineering.

• I have worked on various HVAC projects, including commercial buildings, hospitals, and industrial facilities.

• I am experienced in designing HVAC systems, selecting equipment, and performing load calculations.

• I have knowledge of HVAC codes and standards, such as ASHRAE and NFPA.

• I have successfully managed HVAC installation and commissioning projects.

• I am proficient in using HVAC design software, such as AutoCAD and Revit.

• I have p...read more

The HVAC system work is responsible for designing, installing, and maintaining heating, ventilation, and air conditioning systems in buildings.

• Designing HVAC systems based on building requirements and specifications

• Installing HVAC equipment, including ductwork, piping, and control systems

• Performing regular maintenance and repairs to ensure optimal system performance

• Troubleshooting and diagnosing issues with HVAC systems

• Ensuring compliance with safety and environmental regulat...read more