Control Print Service Engineer Interview Questions and Answers

Q1. What is sub cooling and super heat
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Q2. The chiller condenser outlet line to super heat work and evaporator to compressor before sub cooling work
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Q1. Refrigeration basic cycle
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Q2. 1.Compressor to condenser 2.Condenser to expansion valve 3.Expansion valve to evaporator 4.Evaporator to compressor
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Q1. The split unit E6 error how to resolve
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Q2. Check the Indore to outdoor communication cable continuity continuous not coming means cable is failure and cable continuity is coming na board failure
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Manager and technical officer

One split AC installation work explain

Good be preapred technical queations are there

Q1. Introduce your self
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Q2. Tell me about your previous
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Q1. What is refrigeration cycle ?
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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 throug...read more
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Q2. Which type of gases ?
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Various types of gases are used in different industries and applications, such as oxygen, nitrogen, hydrogen, and carbon dioxide.
• Oxygen

• Nitrogen

• Hydrogen

• Carbon dioxide
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Q3. Which type of chiller?
Ans. 
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 co...read more
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Q4. Main compartment in refrigerationcycle ?
Ans. 
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.
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Q5. How refrigeration work ?
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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

• Th...read more
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