Saama Technologies Interview Questions and Answers

Access door is an inspection way of inside the installed duct.

• Access doors are used to provide easy access to the inside of the duct for inspection, cleaning, and maintenance purposes.

• They are typically installed at regular intervals along the length of the duct.

• Access doors can be made of various materials such as metal, plastic, or fiberglass.

• They come in different sizes and shapes depending on the size and shape of the duct.

• Access doors should be properly sealed to prevent...read more

There are four types of ducts: supply duct, return duct, fresh air duct, and exhaust duct.

• Supply ducts carry conditioned air from the HVAC system to the rooms.

• Return ducts carry air from the rooms back to the HVAC system.

• Fresh air ducts bring in outside air to improve indoor air quality.

• Exhaust ducts remove stale air and pollutants from the building.

The supply duct is responsible for delivering cool air from the unit to the room.

• Supply ducts are typically made of metal or flexible material and are installed in the walls, floors, or ceilings of a building.

• They are connected to the air conditioning unit and distribute cool air throughout the building.

• Properly sized and installed supply ducts ensure that each room receives the appropriate amount of cool air.

• Regular maintenance and cleaning of supply ducts is important to en...read more

Return duct is a part of HVAC system that carries air from a room back to the air handler to be conditioned and recirculated.

• Return ducts are typically larger in size than supply ducts to accommodate the volume of air being returned.

• They can be located in walls, ceilings, or floors depending on the design of the building.

• Return ducts can also have filters installed to remove dust and other particles from the air before it is recirculated.

• Properly sized and installed return du...read more

FCU stands for Fan Coil Unit, which is a device that contains a fan and a heat exchanger to regulate air temperature.

• FCU is commonly used in HVAC systems to provide heating or cooling to a space.

• It works by drawing in air from the room, passing it over a heat exchanger, and then blowing it back out into the room.

• FCUs can be wall-mounted, ceiling-mounted, or floor-mounted depending on the space and design requirements.

• Examples of FCUs include cassette FCUs, ducted FCUs, and fl...read more

HVAC stands for Heating, Ventilation, and Air Conditioning. It refers to the technology used for indoor environmental comfort.

• HVAC systems are used to regulate temperature, humidity, and air quality in buildings.

• They can include components such as furnaces, air conditioners, ductwork, and ventilation fans.

• Properly designed and maintained HVAC systems can improve energy efficiency and indoor air quality.

• HVAC technicians and supervisors are responsible for installation, mainten...read more

FD stands for Fire Damper, which is a device installed in HVAC ducts to prevent the spread of fire and smoke.

• FD is a crucial component of fire protection systems in buildings.

• It is designed to automatically close when it detects heat or smoke, preventing the spread of fire and smoke through the ducts.

• FDs are required by building codes to be installed in certain locations, such as walls, floors, and ceilings, to compartmentalize the building and prevent the spread of fire.

• Regu...read more

There are various types of grills used in HVAC ducting such as return, supply, fresh air, exhaust, and transfer grills.

• Return grills are used to extract air from a room and return it to the HVAC system.

• Supply grills are used to supply conditioned air to a room.

• Fresh air grills are used to bring in fresh air from outside.

• Exhaust grills are used to remove stale air from a room.

• Transfer grills are used to transfer air from one room to another.