Enova Facilities Management LLC ITI Electrician, Electrical Maintenance Interview Questions and Answers

Q1. Process of Chillers operation?
Ans. 
Chillers operate by removing heat from a liquid through a refrigeration cycle.
• Chillers use a compressor to compress refrigerant gas, which then condenses into a liquid.

• The liquid refrigerant is then pumped through an evaporator, where it absorbs heat from the chilled water.

• The refrigerant then returns to the compressor to repeat the cycle.

• Chillers can be air-cooled or water-cooled, depending on the application.

• Chillers...read more
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Q2. What's the work of actuator ?
Ans. 
Actuator is a device that converts electrical energy into mechanical motion.
• Actuators are used in HVAC systems to control the flow of air, water, or steam.

• They can be electric, pneumatic, or hydraulic.

• Examples of actuators include valves, dampers, and motors.

• Actuators are essential for maintaining temperature, humidity, and air quality in HVAC systems.
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Q1. Refrigeration cycle, types of chiller
Ans. 
The refrigeration cycle is a process of removing heat from a space or substance. Types of chillers include absorption, centrifugal, and reciprocating.
• The refrigeration cycle involves four main components: compressor, condenser, expansion valve, and evaporator

• Absorption chillers use a heat source to drive the refrigeration cycle, while centrifugal and reciprocating chillers use mechanical energy

• Centrifugal chillers are ...read more
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Q1. WHAT IS HVAC FULL FROM
Ans. 
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.

• HVAC systems are responsible for heating, cooling, and controlling the air quality in buildings.

• Examples of HVAC equipment include furnaces, air conditioners, heat pumps, and ventilation systems.
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Q2. What is PAC full from
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PAC full form is Package Air Conditioner.
• PAC is a type of air conditioning system that is self-contained and can be installed in a single package.

• It is commonly used in commercial and industrial settings.

• PAC units are designed to be compact and easy to install, making them a popular choice for retrofitting older buildings.

• Some examples of PAC units include rooftop units, wall-mounted units, and floor-mounted units.
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Q3. Preactiom Air conditioning
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Q1. Personal questions
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Q2. Academic background
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Q3. Professional Background
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Q4. What's your strengths?
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