Kisan Shakti Fertilizers & Pesticides Interview Questions and Answers

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) commonly used in automotive air conditioning systems.

• R-410A ...read more

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, packaged units, and ducted units

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.

• Regular maintenance of HVAC systems is important to ensure effic...read more

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 systems

• Ensuring compliance with safety and environmental regulat...read more

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 measured using a psychrometer or a sling psychrometer.

• Wet bu...read more

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.

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 concepts in the design and operation of refrigeration system...read more

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.

• Dew bulb temperature is important in HVAC systems for deter...read more