NTPC Interview Questions and Answers

Dry bulb temperature is the air temperature measured by a regular thermometer. Wet bulb temperature is the lowest temperature that can be reached by evaporating water into the air.

• Dry bulb temperature is the temperature of the air as measured by a regular thermometer.

• Wet bulb temperature is the lowest temperature that can be reached by evaporating water into the air.

• Dry bulb temperature is commonly used to determine the comfort level in indoor environments.

• Wet bulb temperatur...read more

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 design, heat load calculations are used to size equipment li...read more

VCRS stands for Variable Compression Ratio System.

• VCRS is a technology used in internal combustion engines to vary the compression ratio.

• It allows the engine to optimize performance and efficiency based on driving conditions.

• By adjusting the compression ratio, VCRS can improve fuel economy and reduce emissions.

• VCRS can be implemented using various mechanisms such as a movable piston crown or a variable connecting rod length.

• For example, Nissan's VC-Turbo engine uses VCRS to v...read more

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 pressure to start the cycle again

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 something I value in a potential employer.

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 level and efficiency of HVAC systems.

• Example: A high humid...read more

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 Watts.

• An example of heat load calculation is determining the ...read more