10+ Hvac Technician Interview Questions and Answers for Freshers

There are two types of compressors: positive displacement and dynamic. Electrical troubleshooting and wiring are also important skills for HVAC technicians, with a focus on star delta wiring. Knowledge of chiller and DX units is also necessary.

• Two types of compressors: positive displacement and dynamic

• Electrical troubleshooting and wiring skills are important

• Focus on star delta wiring

• Knowledge of chiller and DX units is necessary

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

• HVAC is responsible for maintaining comfortable temperature, humidity, and air quality in buildings.

• It involves the installation, maintenance, and repair of heating, cooling, and ventilation systems.

• HVAC technicians work with various equipment such as furnaces, air conditioners, heat pumps, and ductwork.

• They perform tasks like tro...read more

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

• HVAC is an acronym for Heating, Ventilation, and Air Conditioning.

• It is a system that regulates the temperature, humidity, and air quality in buildings.

• Heating is provided through furnaces, boilers, or heat pumps.

• Ventilation involves the exchange of indoor and outdoor air to maintain fresh air supply.

• Air conditioning cools and dehu...read more

HVAC stands for Heating, Ventilation, and Air Conditioning.

• HVAC is an acronym for Heating, Ventilation, and Air Conditioning.

• It refers to the technology used for indoor environmental comfort.

• Heating systems, ventilation systems, and air conditioning systems are all part of HVAC.

• HVAC technicians are responsible for installing, maintaining, and repairing HVAC systems.

• Examples of HVAC equipment include furnaces, air conditioners, heat pumps, and ventilation fans.

There are two types of compressors used in HVAC systems.

• The two types of compressors are reciprocating and rotary compressors.

• Reciprocating compressors use pistons to compress refrigerant gas.

• Rotary compressors use rotating blades to compress refrigerant gas.

• Reciprocating compressors are commonly used in smaller HVAC systems.

• Rotary compressors are commonly used in larger HVAC systems.

HVAC works by controlling the temperature, humidity, and air quality in a building through heating, ventilation, and air conditioning systems.

• HVAC systems use a combination of heating, cooling, and ventilation to maintain a comfortable indoor environment.

• Heating is typically provided by a furnace or boiler, while cooling is achieved through air conditioning units or heat pumps.

• Ventilation involves the exchange of indoor and outdoor air to improve air quality and remove pollut...read more

HVAC stands for Heating, Ventilation, and Air Conditioning.

• HVAC stands for Heating, Ventilation, and Air Conditioning

• It refers to the technology of indoor environmental comfort

• It involves regulating temperature, humidity, and air quality in buildings

• Examples of HVAC systems include furnaces, air conditioners, and ventilation systems

There are three main types of maintenance: preventive, predictive, and corrective.

• Preventive maintenance involves routine inspections and tasks to prevent breakdowns.

• Predictive maintenance uses data and analytics to predict when equipment will need maintenance.

• Corrective maintenance is performed after a breakdown occurs to restore equipment to working condition.

Ventilation is the process of exchanging indoor air with outdoor air to improve air quality and remove pollutants.

• Ventilation helps to control temperature, remove odors, and replenish oxygen levels in a space.

• There are different types of ventilation systems, such as natural ventilation, mechanical ventilation, and hybrid ventilation.

• Examples of ventilation systems include exhaust fans, air vents, and air ducts.

• Proper ventilation is important for maintaining a healthy indoor e...read more

CM stands for Cooling Mode. It refers to the mode in which an HVAC system operates to cool a space.

• CM stands for Cooling Mode in HVAC systems.

• During CM, the HVAC system works to remove heat from the indoor air and lower the temperature.

• Examples of CM include running the air conditioner to cool a room or building.

• CM is essential for maintaining a comfortable indoor environment during hot weather.

TPM stands for Total Productive Maintenance. It is a proactive approach to maintenance that aims to maximize equipment effectiveness.

• TPM focuses on preventing equipment breakdowns through regular maintenance and employee involvement

• It involves setting up a system of autonomous maintenance where operators are responsible for basic upkeep

• TPM also includes planned maintenance, quality maintenance, and focused improvement activities

• Example: Implementing TPM in a manufacturing pla...read more