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AEPC

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20+ Aarna Cyber Defender Interview Questions and Answers

Updated 5 Feb 2024

Q1. What is PTW and how many types of PTW are there in maintenance of equipments.

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Q2. What is the function of evaporator & compressor in HVAC system ?

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Q3. Engineering point of view how we will increase the life span of MEP equipments ?

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Q4. What is energen system and used for which part of facility maintenance ?

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Q5. What is the standard temp. We maintain in server room & UPS rooms as per Ashrae rules ?

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Q6. Which extinguisher is used for each class of fire ?

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Q7. What are advantages & disadvantages of power factor ?

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Q8. What is the frequency of IAQ (Indoor air quality test ) in HVAC system.

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Q9. What were protection relay used in busbar LV & HV systems.

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Q10. What is harmonics filter and why it is used ?

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Q11. What is process of Utility invoice submission ?

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Q12. What is LOTO system and their uses ?

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Q13. What is rectifier and how it works ?

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Q14. Draw block diagram of refrigerant system ?

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Q15. What is PNP & NPN diode ?

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Q16. How PAC works in server room ?

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Q17. What is power factor ?

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Q18. What is Over current relay ?

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Q19. What is IDMT in relay ?

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Q20. What is lighting arrester ?

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Q21. What is Isolator ?

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Q22. How does FAS works ?

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Q23. What is impedance ?

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