Imeg Engineering India Interview Questions, Process, and Tips

Aptitude with technical questions

Q1. 45-50 mins interview
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Q1. What is basic refrigeration cycle?
Ans. 
The basic refrigeration cycle is a thermodynamic cycle that involves the transfer of heat from a low temperature region to a high temperature region.
• The refrigerant absorbs heat from the low temperature space (evaporation)

• The refrigerant is compressed, raising its temperature and pressure

• The refrigerant releases heat to the high temperature space (condensation)

• The refrigerant expands, lowering its temperature and press
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Q2. What is humidty, wbt, dbt?
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Humidity, WBT, and DBT are important parameters in the field of HVAC and air conditioning.
• Humidity refers to the amount of water vapor present in the air.

• WBT (Wet Bulb Temperature) is the temperature read by a thermometer covered in a water-soaked cloth over which air is passed.

• DBT (Dry Bulb Temperature) is the temperature of air measured by a regular thermometer.

• These parameters are crucial in determining the comfort ...read more
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Q1. WHat is heat load calculations and its components?
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Heat load calculations involve determining the amount of heat that needs to be added or removed from a space to maintain a desired temperature.
• Components include heat gain from occupants, equipment, lighting, and infiltration, as well as heat loss through walls, windows, and roofs.

• Calculations are typically done using formulas based on the specific heat capacities and thermal properties of materials.

• Example: In HVAC de...read more
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Q1. Why you want to join IMEG?
Ans. 
IMEG's reputation for innovative projects and collaborative work environment aligns with my career goals and values.
• IMEG's focus on sustainable engineering solutions resonates with my passion for environmental conservation.

• I am impressed by IMEG's diverse portfolio of projects, ranging from healthcare facilities to educational institutions.

• IMEG's commitment to professional development and mentorship programs is somethi
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Q1. RAC cycle explain in detail
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Q2. Different modes of heat transfer
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Q1. Details on educational qualification
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Q2. Details on prior experience if any
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Q1. Draw psychrometric chart.
Ans. 
A psychrometric chart is a graphical representation of the thermodynamic properties of air.
• A psychrometric chart shows the relationship between temperature, humidity, and other properties of air.

• It is used in HVAC design to determine the appropriate air conditioning and ventilation systems.

• The chart includes lines of constant temperature, humidity ratio, and enthalpy.

• It also includes regions of comfort, such as the ASH...read more
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Q2. Haw do define heat load in a room
Ans. 
Heat load in a room refers to the amount of heat that needs to be removed to maintain a comfortable temperature.
• Heat load is influenced by factors such as the number of occupants, equipment, lighting, and insulation in the room.

• Calculating heat load involves determining the heat gain from these factors and the heat loss through walls, windows, and ventilation.

• Heat load is measured in British Thermal Units (BTUs) or Wat...read more
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