ISS Facility Services Hvac Chiller Technician Interview Questions and Answers

Q1. What is Ups? And How it Works
Ans. 
UPS stands for Uninterruptible Power Supply. It is an electrical device that provides emergency power to a load when the input power source fails.
• UPS works by converting DC power from a battery to AC power that can be used by the load.

• It provides immediate power backup during power outages, preventing data loss and equipment damage.

• UPS can also regulate voltage and frequency, protecting the load from power surges and s...read more
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Q2. What is AHU and How it Works
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AHU stands for Air Handling Unit. It is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system.
• AHU is responsible for filtering, heating, cooling, humidifying, and dehumidifying the air.

• It consists of a blower, heating and cooling elements, filters, and dampers.

• The blower pulls in air from the outside and passes it through the filters to remove impurities.

• The a...read more
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Q3. What is AC and Types of AC
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AC stands for Alternating Current. There are two types of AC - Single Phase and Three Phase.
• AC is a type of electrical current that periodically reverses direction.

• Single Phase AC is commonly used in households and small businesses.

• Three Phase AC is used in industrial and commercial settings.

• AC power is generated by power plants and transmitted through power lines.

• AC voltage and frequency vary depending on the country ...read more
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Q4. BMS Work CCTV operation
Ans. 
BMS Work CCTV operation involves monitoring and controlling CCTV systems through a Building Management System.
• BMS Work CCTV operation is a part of building automation systems that allows for remote monitoring and control of CCTV systems.

• It involves integrating CCTV systems with the BMS to enable real-time monitoring and control of cameras, recording devices, and other related equipment.

• BMS Work CCTV operation can be us...read more
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Q1. Reality to my Electrician job
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Q2. 10 question paper also given and we have to solve
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Reality to my Electrician job and my family details

Q1. Technical quetions Department subjects Electrical points Electrical thieories
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Q2. Basic formulaws Basic knoledge
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Q1. What is the fullform of the AHU
Ans. 
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 blower, heating or cooling elements, filters, dampers, and sound attenuators.

• AHUs are commonly found in commercial and industrial buildings to maintain indoor air quality and comfort.

• Examples of AHU manufacturers include Trane, Carrier, and
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Q2. Fullform of the AHU Air Handling unit
Ans. 
Air Handling Unit
• AHU stands for Air Handling Unit

• AHUs are used to regulate and circulate air as part of HVAC systems

• They typically consist of a blower, heating or cooling elements, filters, and dampers

• AHUs are commonly found in commercial and industrial buildings
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Q3. Who many years of experience
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Q4. I work realated 2 years
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Q1. 1 What is transformer and safety 2 PM activity of mcc panel, PCC panel
Ans. 
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. Safety measures are important to prevent accidents and ensure proper functioning of transformers.
• A transformer is used to step up or step down voltage levels in electrical systems.

• It consists of two or more coils of wire, known as windings, which are wound around a core made of magnetic...read more
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Q2. What is DG and how its working
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DG stands for Diesel Generator. It is a type of generator that uses diesel fuel to produce electrical energy.
• DG is commonly used as a backup power source in case of power outages.

• It consists of an engine that runs on diesel fuel and an alternator that converts mechanical energy into electrical energy.

• DG sets are often used in industries, commercial buildings, and residential complexes.

• They are capable of providing powe...read more
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Q1. Technical questions
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Q1. Self introduction
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Q2. Hobbies
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