ASHCHARYA BANSAL

NPCIL 2025 interview

18/06/2025, Mumbai NPCIL interview experience Panel consist of 6-7 member Panel told me to write my fav subject. I mentioned BTD, FM, RAC, HT, PP BTD Q1 what is use of thermodynamics in real life. Q2. All thermodynamics process name Q3. if ballon is there and we suddenly blast, which process it will be Q4. Why filled ballon contract when we fill it in and left for 2-3 days FM Q1. Classification of machine Q2.difference bw CP and RP, characteristics curve of pump, what modification and which pump you will use to lift water from 25m well , they told me us Centrifugal Pump and modify it, RAC Q1. All temp WBT, DBT, DPT, practical significance of DPT in AC Q2 if room temp is 24 and Outside temp is 24. Will AC do cooling and draw curve on psychrometry. Q3. Desert cooler working and curve Q4. Asked me about WBT, if one room has high WBt than other what does it show Q4. Normally ask AC working and which type compressor we use. Power plant Q1 latest advancements in power plant Q2. In above question one point i mention plant working on supercritical cycle, they asked me alot about this , T-S curve and other significance. Q3. Asked me type of boiler and pressure on which they operate HT Q1. What are fins and different types, which type use in AC condensor Q2. Critical radius question Q3. One easy problem given to Calculate overall thermal resistance Q4 asked me about boiling curve and other questions regarding this alot discussion and importance in Power plant of this curve

NPCIL 2025 INTERVIEW

NPCIL 2025 Interview (40 min) Venue -Mumbai ,17/06/25 1.Introduce Yourself 2.Why you want to Join NPCIL. 3.Favourite Subject BT HT FM RAC SOM Basic of refrigerator 1ton of refrigerator Basic VCRS and property of Refrigerant. 4.Efficiency of Braton Cycle. Where we use waste heat (in refrigeration) They want to know about VARS. 5.Where we use waste heat that comes in exhaust of Braton Cycle. 6.Property of Shaft in low temperature application,like refrigerant is flowing through pump. 7.Detais of Characteristics Curve of Pump. 8.NPSH,they ask me to calculate NPSH various parameters like head loss dependency on what are factor. 9.About Stainless Steel, percentage of Cromium in stainless steel. 10.About Corrosion, Galvanization basic.

Interview experience 09/06 It went around 35 min -About myself -Fav Subjects -Heat transfer in Fluid flowing in pipe:- mode of HT, critical radius of insulation, thermal boundary layer -Grain structure- strength relation/ dislocation -RAC:- basic working, phases, placement of evaporator in fridge, load dependency on AC, meaning of 1 ton of refrigeration, temp/phase of refrigerant at different points, types of refrigerants, ODP, COP, WBT, DBT (which will be more in humid and less humid environment) -Heat exchanger- how much length required for achieving (∆T)exit=0

NPCIL 2025 Interview experience 09/06/2025. Q1: Introduce yourself. Q2 are you preparing for all subjects or otherwise give subject name(BTD, PP, SOM, FM and ICE). F.M: Q3 Draw Orifice meter diagram and explain how it work and write down the discharge. equation. Q4 Draw venturi meter diagram and explain how it work and write discharge equation and Bernollise equation. Power plant: Q5 what is supercritical boiler. Q7 What major components in super critical boiler. Q8 Is boiler drum is used in super critical boiler. Q9 How many Tubes are in boiler approximate and what is material of tubes in boiler. Q9 On which cycle steam power plant work. Q10 Draw simple Rankine T-S cycle and modified Rankine T-S cycle different Between. Q11 what is supper heating. Q12 what is latent heat. Q13 what is value of temperature and pressure at critical point for water. Q14 show pendent, radiant and connective heater in modified Rankine cycle. Q15 what is maximum approximate value of pressure and temperature in supper critical boiler. Q16 what's type of boiler Other then supercritical boiler. Q17 Explain the water cycle flow in modified Rankine cycle. Q18 What is deaerated. Q19 Explain the steam flow in modified Rankine cycle. Q20 which device is used to extract non condensible gases from condenser. Q20 What type of heaters used in modified Rankine cycle. Q21 what is circulation ratio. Q22 what is Re-circulation ratio. Q23 what is velocity of steam at bottom of boiler tubes and top of boiler tubes. HMT. Q24 what is overall coefficient. Q25 Draw condenser parallel and counter flow temperature profile. Q26 At which phase maximum heat transfer get. Machine design: Q27 which design toos is used as you a design engineer. Q28 what's tolerance and why it is provided for manufacturing any components. SOM Q29 what is proof stress. Q30 draw stress strain diagram and explain. Q31 what is hydrostatic and hydrodynamic bearing explain. Q32 which device is used in hydrostatic bearing for give lubricant oil between shaft and bearing. ICE: Q33 what is application of ICE. Q34 what is hybrid engine vechile.

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MANY MANY CONGRATULATIONS FOR NPCIL

NPCIL 2025 RESULT OUT

Around 35% of IIT graduates end up settling abroad. Majority who remain works for foreign MNCs. Hard truth to digest.

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