Milestone Project Services Hvac Design Engineer Interview Questions and Answers

AHU stands for Air Handling Unit.

• AHU is a device used to regulate and circulate air as part of a heating, ventilation, and air conditioning (HVAC) system.

• It typically consists of a fan, heating and cooling coils, filters, dampers, and controls.

• AHUs are responsible for conditioning and distributing air to different areas of a building.

• They can be found in various settings such as commercial buildings, hospitals, and ind...read more

Infiltration refers to the unintentional or unwanted entry of outside air into a building or space.

• Infiltration can occur through cracks, gaps, or openings in the building envelope.

• It can lead to energy loss, poor indoor air quality, and discomfort for occupants.

• Infiltration can be reduced through proper sealing and insulation of the building envelope.

• Examples of infiltration include drafts around windows and doors, an...read more

ACH stands for Air Changes per Hour, which is a measure of the number of times the air in a room is replaced with fresh air in an hour.

• ACH is an important factor in determining the indoor air quality of a space.

• It is calculated by dividing the volume of air in a room by the amount of fresh air introduced in an hour.

• ASHRAE recommends a minimum of 4 ACH for residential spaces and 6 ACH for commercial spaces.

• Higher ACH va...read more

Duct size for 3500 CFM and 0.0112 ich of wg friction in Duct sizer software.

• Open Duct sizer software

• Enter 3500 CFM and 0.0112 ich of wg friction

• Calculate duct size

I am highly proficient in Autocad layout design for HVAC systems.

• I have extensive experience in using Autocad for designing HVAC systems.

• I am skilled in creating detailed 2D and 3D models of HVAC systems using Autocad.

• I am familiar with industry standards and codes related to HVAC design and can incorporate them into my designs.

• I have worked on various projects involving HVAC design using Autocad, including commercial ...read more

Heat load refers to the amount of heat that needs to be removed or added to a space to maintain a desired temperature.

• Heat load is calculated based on factors such as the size of the space, the number of occupants, the amount of equipment in the space, and the climate.

• It is important to accurately calculate heat load in order to properly size HVAC equipment and ensure efficient operation.

• Examples of factors that can in...read more