Blue Star
Air Warriors Interview Questions and Answers
Q1. What is the purpose of work.
The purpose of work is to contribute to society, fulfill personal goals, and earn a living.
To contribute to society by providing goods or services that meet the needs of others
To fulfill personal goals and aspirations by using skills and talents
To earn a living and support oneself and one's family financially
Q2. Mention the program of the unit
The program of the unit refers to the software that controls its functions and operations.
The program may include various modules for different functions such as diagnostics, maintenance, and control.
Examples of programs for service engineers include MATLAB, LabVIEW, and Python.
The program may also include firmware updates and patches to improve performance and fix bugs.
Service engineers may need to troubleshoot and debug the program to identify and resolve issues.
Regular upd...read more
Q3. What is refrigeration cycle ?
Refrigeration cycle is a process in which refrigerant absorbs heat from a low-temperature area and releases it in a high-temperature area.
Refrigerant absorbs heat from the evaporator coil and evaporates into a gas.
The compressor then compresses the gas, raising its temperature and pressure.
The hot gas flows through the condenser coil, releasing heat and condensing back into a liquid.
The liquid refrigerant passes through the expansion valve, where it expands and cools down bef...read more
Q4. Which type of gases ?
Various types of gases are used in different industries and applications, such as oxygen, nitrogen, hydrogen, and carbon dioxide.
Oxygen
Nitrogen
Hydrogen
Carbon dioxide
Q5. Which type of chiller?
The type of chiller used depends on the specific requirements of the system, such as cooling capacity, energy efficiency, and space constraints.
Different types of chillers include air-cooled chillers, water-cooled chillers, absorption chillers, and centrifugal chillers.
The choice of chiller type is influenced by factors such as the temperature range required, the size of the system, and the availability of water for cooling.
For example, air-cooled chillers are often used in s...read more
Q6. How refrigeration work ?
Refrigeration works by removing heat from a space or substance to lower its temperature.
Refrigerant absorbs heat from the space or substance being cooled
The refrigerant then moves to the compressor where it is compressed and heated
The hot, pressurized refrigerant moves to the condenser where it releases heat and condenses into a liquid
The liquid refrigerant moves to the expansion valve where it expands and cools down
The cooled refrigerant then moves to the evaporator where it...read more
Q7. Main compartment in refrigerationcycle ?
The main compartment in a refrigeration cycle is the evaporator.
The evaporator is where the refrigerant absorbs heat from the air or water being cooled.
It is located inside the refrigerator or air conditioning unit.
The evaporator coils are filled with the refrigerant, which evaporates as it absorbs heat.
The evaporator is connected to the compressor, which then compresses the refrigerant gas to raise its temperature.
Q8. Explain tr in refrigeration
TR in refrigeration stands for Ton of Refrigeration, a unit used to measure the cooling capacity of a refrigeration system.
TR is a unit of power equal to 12,000 BTUs per hour.
It is commonly used in the HVAC industry to measure the cooling capacity of air conditioning systems.
For example, a 2-ton air conditioner can remove 24,000 BTUs of heat per hour.
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