HVAC Interview Question and Answer for Technicians

This is our second tutorial video of which name is “HVAC Interview Question and Answer for Technicians”.
Here you can find common question and answer of HVAC technician. This interview question are collected from different source and made for the technician.
After seeing this video Hope a HVAC technician can easily understand what common question and answer that’s in job interview.
Here we elaborate the HVAC Interview Question and Answer that’s asked details in video.

Question Number 8: How Vapor Compression Cycle Works?
Answer:
The Vapor-Compression Refrigeration Cycle is comprised of four steps. The condenser is in contact with the hot reservoir of the refrigeration system. The gas releases heat into the hot reservoir because of the external work added to the gas. The refrigerant leaves as a high pressure liquid
Question Number 9: What Is Variable Air Volume System & Dual Duct System?
Answer:
Variable Air Volume (VAV) is a type of heating, ventilating, and/or air- conditioning (HVAC) system. Unlike constant air volume (CAV) systems, which supply a constant airflow at a variable temperature, VAV systems vary the airflow at a constant temperature
Question Number 10: What Is Constant Volume System?
Answer:
Constant Air Volume (CAV) is a type of heating, ventilating, and air- conditioning (HVAC) system. In a simple CAV system, the supply air flow rate is constant, but the supply air temperature is varied to meet the thermal loads of a space. Most CAV systems are small, and serve a single thermal zone
Question Number 11: What Is Centralized Air System?
Answer:
The most common central cooling system is a split system, which includes an outdoor cabinet containing a condenser coil and compressor, and an indoor evaporator coil, usually installed in conjunction with your furnace. or air handler . The compressor pumps a chemical called refrigerant through the system
Question Number 12: What Is Local Comfort Cooling System?
Answer:
They may be integrated, with heating, ventilation and air conditioning provided by a single system, for example, air handling units connected to ductwork, or they may be a combination of separate systems, for example mechanical ventilation but with radiators for heating and local comfort cooling units

Question Number 13: Where The FCU Are Used?
Answer:
A fan coil unit is a simple device consisting of a heating or cooling coil and fan. It is part of an HVAC system found in residential, commercial, and buildings. Typically a fan coil unit is not connected to ductwork and is used to control the temperature in the space where it is installed, or serve multiple spaces
Question Number 14: What Is The Function Of Ahu?
Answer:
An Air Handling Unit (AHU) is used to re-condition and circulate air as part of a heating, ventilating and air- conditioning system. The basic functions of the AHU is take in outside air, re-condition it and supply it as fresh air to a building

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