Abs Fujitsu General Interview Questions and Answers

Q1. Technical Questions upfront
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Q2. From R&AC and heat transfer
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Heat transfer is the process of energy moving from a hotter object to a cooler one.
• Heat transfer can occur through conduction, convection, or radiation.

• Example: A metal spoon getting hot when placed in a hot cup of coffee is an example of conduction.

• Example: The warmth felt from a fireplace is an example of radiation.

• Example: The circulation of warm air in a room due to a heater is an example of convection.
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Common topic from current issues.

Q1. What is Wet bulb temperature.
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Wet bulb temperature is the temperature recorded by a thermometer that has its bulb covered with a wet cloth exposed to moving air.
• Wet bulb temperature is a measure of the lowest temperature that can be achieved by evaporating water into the air.

• It is used in meteorology to calculate humidity and dew point.

• Wet bulb temperature is lower than dry bulb temperature due to the cooling effect of evaporation.

• It is commonly me...read more
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Q2. What do you mean by refreigerants. Common used refrigerants and their codes in detail
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Refrigerants are substances used in refrigeration systems to transfer heat and cool spaces. Common examples include R-134a, R-410A, and R-22.
• Refrigerants are chemicals used in refrigeration systems to absorb and release heat.

• Commonly used refrigerants include R-134a, R-410A, and R-22.

• Refrigerants are classified by their chemical composition and have unique codes for identification.

• R-134a is a hydrofluorocarbon (HFC) co...read more
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Q1. Do u wanna relocate
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Q2. U might face difficulty coz its a site work
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Q1. HVAC, CFM calculation, tonnage, Duct measurements
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Q2. What is HVAC system
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HVAC system stands for Heating, Ventilation, and Air Conditioning system, which is used to control the temperature, humidity, and air quality in a building.
• HVAC system includes components such as furnaces, air conditioners, heat pumps, ductwork, and thermostats.

• It is designed to provide thermal comfort and acceptable indoor air quality.

• HVAC systems can be used in residential, commercial, and industrial buildings.

• Regula...read more
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Q3. What is functional of AHU
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AHU stands for Air Handling Unit, which is responsible for circulating and conditioning air in a HVAC system.
• AHU circulates and conditions air in a HVAC system

• It filters and cleans the air before distributing it throughout the building

• It controls the temperature, humidity, and air quality in the building

• AHU typically consists of a fan, heating or cooling coils, filters, and dampers

• Examples of AHU include rooftop units,
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Q4. Finally submitted
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All questions comes from refrigaration and Air condition

Q1. What is dew bulb temparature(defination)
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Dew bulb temperature is the temperature at which air becomes saturated with moisture when cooled at constant pressure.
• Dew bulb temperature is also known as the wet bulb temperature.

• It is measured using a psychrometer, which consists of a dry bulb thermometer and a wet bulb thermometer.

• The difference between the dry bulb temperature and the dew bulb temperature can be used to determine the relative humidity of the air.

• D...read more
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Q2. What is COP and Ton of refrigation
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COP stands for Coefficient of Performance and Ton of refrigeration is a unit of power used in refrigeration.
• COP is a measure of the efficiency of a refrigeration system, calculated as the ratio of cooling output to the amount of energy input.

• Ton of refrigeration is a unit of power equal to 12,000 BTUs per hour, used to describe the cooling capacity of a refrigeration system.

• COP and Ton of refrigeration are important co...read more
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Q3. Defination of wbt,dpt
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WBT stands for Wet Bulb Temperature and DPT stands for Dew Point Temperature.
• Wet Bulb Temperature (WBT) is the temperature read by a thermometer covered in a water-soaked cloth exposed to moving air.

• Dew Point Temperature (DPT) is the temperature at which air becomes saturated with water vapor and dew forms.

• Both WBT and DPT are important in determining humidity levels and comfort in a given environment.
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Q1. HVAC project management
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Q2. HVAC system work responsible
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The HVAC system work is responsible for designing, installing, and maintaining heating, ventilation, and air conditioning systems in buildings.
• Designing HVAC systems based on building requirements and specifications

• Installing HVAC equipment, including ductwork, piping, and control systems

• Performing regular maintenance and repairs to ensure optimal system performance

• Troubleshooting and diagnosing issues with HVAC system...read more
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Q3. HVAC machanical engineering
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