How to prepare for Interview Basic Thermodynamics | Thermodynamics Interview Questions | Mechanical
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- Опубліковано 26 лип 2018
- How to prepare for Interview Basic Thermodynamics | Thermodynamics Interview Questions | Mechanical. This Series of videos contains probable Interview Questions asked by interviewer for selection in IIT's(MTech, MS, Direct PhD), PSU's, Campus placements etc.
This part covers Interview Questions of Subject: Basic Thermodynamics (Mechanical Branch)
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38:20 IC engine Otto cycle PV work is calculated as closed even though IC engine is open system.
41:41 Pressure Cooker Open or closed system?
45:40 what is thermodynamic property?
48:40 Intensive Extensive
51:49 What is CV approach and system approach on the basis of boundary
55:13 Thermodynamic state, process, cycle
1:02:10 First law for cycle
1:07:45 Significance of P-V and T-S diagram
1:11:45 PdV work significance 1:17:55 Reversible pdv process work and significance of sign
1:23:48 -vdp work 1:29:37 steady flow work
1:34:10 summary of pdv and -vdp work
1:35:30 difference in -vdp work & work obtained from SFEE
1:39:35 Thermodynamic equilibrium
1:46:50 Reversible and Quasistatic
1:50:10 Polytropic reversible process
1:51:40 Sign convention for energy transfer
1:58:15 Internal Energy significance. Internal KE and PE
2:04:40 Internal Energy of ideal gases
2:06:40 Enthalpy and it's relation with Internal Energy 2:09:20 flow work
2:11:00 Enthalpy, Internal Energy & Entropy of glass of water and reference points
2:19:30 ∆H and ∆U value is same for any process between 1 & 2. For real gas different.
2:20:50 Difference between heat and work. Low grade and high grade
2:24:20 In a room with refrigerator/fan what is work done on and heat transfer to the system. 1st law analysis.
2:29:05 How do you define pressure and temperature and their absolute values.
2:35:00 0 pascal can exist but 0 kelvin can't.
2:38:10 Absolute pressure and temperature
2:42:35 Ideal gas and Real gas analysis
2:48:25 real gas vanderwalls equation from ideal gas equation
2:52:05 How to calculate Heat energy change for solid, liquid & gases. Difference of that with change in internal energy cause Heat is not a property.
2:58:40 dQ for constant temperature heating. Heat capacity.
3:01:20 Derive Bernoulli eqn or Euler eqn. from SFEE (1st for flpwing system)
3:09:50 Free expansion process work and significance
3:13:50 PdV as an expression is not always work
3:16:00 Free expansion temperature of end states same but not isothermal
3:17:42 Throttling process analysis, work done and change in Enthalpy. Why is it assumed adiabatic? Less contact area
3:27:50 What is 1st law for open and closed system. For process and for cycle. 3:32:40 Specific flow energy. 1st law for unsteady process in open system.
3:37:00 SFEE differntial form
3:40:15 What is the equation of 2nd law of Thermodynamics? Clausius inequality for process and for cycle. 3:43:00.
3:42:25 2nd law for irreversible process and irreversibility
3:45:35 Qualitative and Quantitative law in 1st and 2nd law. Feasibility or possibility of a process.
3:47:00 PMM-1 & PMM-2
3:51:20 Which engine has the highest efficiency? Can it be 1.
3:52:25 Why Carnot is the most efficient cycle?
3:54:05 Why Otto cycle efficiency is less than Carnot even though working between same temperature limit and reversible. 3:58:00 Internal and external reversibility.
4:03:45 Difference in adiabatic, reversible adiabatic and isentropic process. 4:05:50 gamma value of gases 4:08:35 Isentropic vs Reversible adiabatic & entropy generation
4:12:20 Kelvin-Planck and Clausius statement of 2nd law and PMM-1 &2
4:21:40 Why CoP calculated for Heat Pump and dump efficiency for engine?
4:23:40 Definition of Entropy
4:29:55 How do you calculate entropy change of a system? 4:31:45 How to write the 1st and 2nd law together? T-dS relation and significance
4:39:35 Entropy change calculation for ideal gases. Change is same in all 3 equation.
4:46:35 Change for Polytropic process.Why even though change in entropy independent of path but different formulas.
4:49:50 Entropy change calculation for reservoirs. 4:54:35 Can you calculate irreversibility in that process of heat exchange between reservoirs.
4:56:30 Entropy change calculation for solid/liquid and irreversibility in the process. And the irreversibility in the process.
4:59:20 Calculate the Entropy generation when a cup of tea is kept in a room. What is the irreversibility in the process.
5:03:20 What is Available Energy, availability and exergy. Significance. 5:09:00 Dead state and maximum efficiency w.r.t ambient
5:10:40 Actual work and maximum work and available energy
5:16:34 What is Unavailable Energy
5:17:30 Available and Unavailable Energy in the Carnot Cycle. How to calculate
5:21:25 Show what is Available Energy and Unavailable Energy in Otto Cycle.
5:29:00 AE and UAE in Diesel Cycle
5:30:30 What is the Available Energy in the heat when a hot steel block is kept at room
5:33:50 What is Available Energy loss in a process
5:34:55 Loss of Available Energy in case of Heat Engine is different why?
5:36:30 Gas filling station problem. Unsteady flow Energy Equation.
5:44:07 Unsteady Emptying process problem and equation.
5:50:40 Irreversibility and significance
5:57:34 Calculation of Irreversibility in a Heat Engine
5:59:25 Entropy change in Free expansion and Throttling process
Great bhai❤️
This should be a pinned comment. Great work!
Thanks a lot.
Thanks a lot
Thanks Bro
1. What is a thermodynamic property?
2. What are intensive and extensive thermodynamic properties?
3. What is the difference between a closed and open thermodynamic system?
4. What is the difference between a thermodynamic state, process, and cycle?
5. What is the first law of thermodynamics?
6. What is the significance of the P-V and T-S diagrams?
7. What is PdV work?
8. What is the difference between reversible and irreversible thermodynamic processes?
9. What is a polytropic reversible process?
10. What is the sign convention for energy transfer in thermodynamics?
11. What is internal energy?
12. What is the difference between internal energy and enthalpy?
13. What is flow work?
14. What is the difference between enthalpy, internal energy, and entropy?
15. What are reference points in thermodynamics?
16. What is the difference between ∆H and ∆U for real gases?
17. What is the difference between heat and work?
18. What are low-grade and high-grade heat?
19. What is work done on and heat transfer to the system in a room with a refrigerator/fan?
20. How do you define pressure and temperature?
21. What are absolute pressure and temperature?
22. What is the difference between an ideal gas and a real gas?
23. How do you derive the van der Waals equation from the ideal gas equation?
24. How do you calculate heat energy change for solid, liquid, and gas?
25. Why is heat not a property?
26. How do you calculate heat capacity for constant temperature heating?
27. How do you derive Bernoulli's equation or Euler's equation from the first law of thermodynamics?
28. What is the work done and significance of a free expansion process?
29. Why is PdV not always work?
30. Why is the temperature of the end states the same in a free expansion process, but it is not isothermal?
31. Why is a throttling process assumed to be adiabatic?
32. What is the first law of thermodynamics for open and closed systems, and for processes and cycles?
33. What is specific flow energy?
34. What is the first law of thermodynamics for unsteady processes in open systems?
35. What is the differential form of the first law of thermodynamics?
36. What is the equation of the second law of thermodynamics?
37. What is the Clausius inequality for a process?
38. What is the Clausius inequality for a cycle?
39. What is the difference between the second law for reversible and irreversible processes?
40. What is irreversibility?
41. What is the difference between qualitative and quantitative laws in thermodynamics?
42. How do you determine the feasibility or possibility of a thermodynamic process?
43. What are PMM-1 and PMM-2?
44. Which engine has the highest efficiency?
45. Can the efficiency of an engine ever be 1?
46. Why is the Carnot cycle the most efficient cycle?
47. Why is the efficiency of the Otto cycle less than the efficiency of the Carnot cycle, even though they both operate between the same temperature limits and are reversible?
48. What is the difference between internal and external reversibility?
49. What is the difference between adiabatic, reversible adiabatic, and isentropic processes?
50. What is the gamma value of gases?
51. What is the difference between isentropic and reversible adiabatic processes?
52. What is entropy generation?
53. What are the Kelvin-Planck and Clausius statements of the second law of thermodynamics?
54. What are PMM-1 and PMM-2?
55. Why is the coefficient of performance (COP) calculated for heat pumps and the dump efficiency calculated for engines?
56. What is entropy?
57. How do you calculate the entropy change of a system?
58. How do you write the first and second laws of thermodynamics together?
59. What is the significance of the T-dS relation?
60. How do you calculate the entropy change of an ideal gas?
61. How do you calculate the entropy change of a polytropic process?
62. Why is the entropy change of a reservoir independent of the path?
63. Can you calculate the irreversibility in the process of heat exchange between reservoirs?
64. How do you calculate the entropy change of a solid or liquid?
65. What is irreversibility in a process?
66. Calculate the entropy generation when a cup of tea is kept in a room.
67. What is available energy, availability, and exergy?
68. What is the significance of available energy, availability, and exergy?
69. What is a dead state?
70. What is the maximum efficiency w.r.t ambient?
71. What is the difference between actual work and maximum work?
72. What is available energy?
73. What is unavailable energy?
74. How to calculate available energy and unavailable energy in the Carnot cycle?
75. What is available energy and unavailable energy in the Otto cycle?
76. What is available energy and unavailable energy in the Diesel cycle?
77. What is the available energy in the heat when a hot steel block is kept at room temperature?
78. What is available energy loss in a process?
79. Why is loss of available energy different in case of heat engine?
80. What is the gas filling station problem?
81. What is the unsteady flow energy equation?
82. What is the unsteady emptying process problem?
83. What is irreversibility?
84. What is the significance of irreversibility?
85. How to calculate irreversibility in a heat engine?
86. What is the entropy change in free expansion and throttling process?
Tq❤
Just imagine the education without these professors who are teaching us on these platforms for free. Thank you so much for everything sir❣❣🙏
Tremendous respect for the professor. The way the professor is teaching shows he is really interested in the subject. Thanks once again sir.
sir why did you privatized you fluid mechanics video ??
First time i am seeing a lecture on UA-cam which beat the NPTEL lecture. Quality content. Thanks a lot, sir. Please provide the other subject video also. I am ready to pay also because your hard work is really worth it to pay.
yes we will do that soon
@@dr.vijayendersingh8917 Dear Sir,
Requesting you to prepare a package for Metallurgical engineering.
@@dr.vijayendersingh8917 private video public kr do sir
You're the best teacher. No one could teach the concept of availability and irreversibilty so clearly.
finally a video which captures all the concepts of a subject, thank you so much sir for this. Can you make more of such videos on other subjects like SOM, TOM etc?
Yes right
dont think twice! just start watching trust me you wont regret it.
Sir where were you till now. I am unfortunate not to find you earlier. This is absolutely what is needed and how to clarify basics. Salute.
Please guide me where I can get IGCAR Technical officer Mechanical question paper
Feeling the same 😀
best lecture I have ever seen.I am speachless. sir plz upload more videos for mechanical student like this.
Best video for preparation , with help of this video i have cleared the M-tech thermal interview round in IIT jodpur
Sir, you have cleared my all most every doubts. Thanks a lot sir.
good evening sir, please unblock the heat transfer videos sir/maam, it was a really helpful one so please do bring it back. thank you😊
You are mast aadmi sir!! Poora revision ki tarah ho gya
sir apne mujhe samjha di thermodynamics , ap kisi ko bhi samjha skte ho mtlb :) thankyou so much sir
Sir you are god of Mechanical engineering...
If we get teacher like you in college we will be able to crack any exam without coaching..
And this lecture is going to help a lot in ISRO interview... Thanks sir
What a lecuture!. Thank you so much sir. 🙏🙏🙏🙏🙏🙏
Thanks sir for this video because of this video clear my all concept of thermo
cleared my bpsc exam ..what is ppm1 - told them,is there any machine resembling pmm1 yes sir nuclear reactor...rest questions also came from your fm ,ice ,thermodynamic,thanks alot i learnt more concepts in this last 15 days than in my whole 4 years ..thank you for such videos 😃
Great... Which bpsc exam..??
Very Helpful video ,Thank You sir👌👌👌
awesome..thanks for this amazing video
Thank you very much sir.
I really appreciate your hard work to made this type of videos.
Thanks 😊 lot
Thank you so much Sir for such efforts 🙏 I was asked about Brayton cycle and diagram for that during interview ... IISc Bangalore Aero. I felt confident enough to face the panel only because of these videos uploaded on youtube by you and many others in the same field ...
Bhai this man is a genius
He must be an IIT faculty
You are torch bearer sir
Before this lecture i was unable to give response to any thermodynamics question after this video I am able to give answer. Thanks a lot sir for your effort 💫💫💫👌👌👌❤️❤️❤️
wow sir......good questions and their explaination......keep going like this sir...
Excellent lecture sir. I got clarification in all my concepts. Thank you so much from bottom of my heart.
thanks aniket a lot for watching
i have completed it.. thank you so much sir.. i have not ever seen such a video on UA-cam.. .. please keep making such videos .. you can't imagine that your videos how much can help the students.. God bless you sir
Sir u r simply awsome ✌👌 ur teaching style is unique... There is no comparison.. N no one can teach like u... Sir m passed from NIT bhopal... Even i haven't saw any teacher there like u... 🙂
ok thanks ankit thanks
A BIG THANKS SIR. IT WILL HELP TO RECALL MY KNOWLEDGE.
This man should be awarded
Wow, you are great sir beautiful teaching.Thanks a lot sir ji
it's the best explanation video of thermodynamics. Highly useful for Chemical and Mechanical. Very is to learn. Thank you sir for increasing my interest in thermoDyn.
It's really amazing session sir!!
Completed near about all important topics of thermodynamics....thanks Sir
Keep doing nd nd build future of students...
i have the interview on 1st sept so i watched ur videos from last 10 days sir.... your marathon videos are boosting my knowledge tremendously ... thanks a lot sir........
Yeah....👍
Hiii sir I'm also preparing for nfc interview hw r u Srikanth
@@vinodstudies9249 kab hai bhai aapka interview,,I also cleared that exam
@@shubhamnagar6025 on 18th when did u have
Thank you sir for the efforts and making us understand the subject. Highy appreciated efforts and the way of teaching is amazingly superb.
Came after watching SOM lecture. Again a great one Sir. Much much Thank You really.
Wow... Amazing. It helped a lot. Thank u for this video.
Thanks a lot sir U really understand the prob of students
Infinite no. Of hearts to Vijeyndar sir❤️❤️❤️...
Sir thank you for this valuable video
Sir u r the most brilliant faculty of my life
So much concepts
Thanks a lot sir for this video
Really I got more and more(vast) knowledge about interview questions.
thanks a lot for this
thanku sir. this is best video for understading basics question of thermodynamics.
thanks priyesh
Sir you should write h book on thermodynamics your video's are worth seeing the knowledge you r giving cannot be thaught anywhere in any cllg , big respect sir♥️🙏🙏🙏
Thanku so much Sir for giving such a type of information... Keep it up sir..
thanks mayuri
sir great hume yehi chayihe tha..
It's a superb explanation sir I never had information in the practical sence by any video this mush
thanks krishna
Excellent sir..🙏👌👏..and thank u..for teaching us so nicely.. keep doing sir
thanks sanjay
Sir,really very good your work..I am studied from made easy and gate forum...but no one clear concept like you....this content very much helpful for my future interview..
Thankyou Sir for your Great Effort...
Just awesome teaching. Thank you sir. ✌️
thanks sourabh
Thanks a lot Sir for providing thoroughly knowledge of basic thermodynamics
It helps me to boost the concept thoroughly
thanks sumit
Thank you very much sir for lot of efforts 🥰🥰 Clear explanation ...FANTASTIC LECTURE 👌👌👌 awesome ...thank you very much sir ...🙏🏿🙏🏿🙏🏿🙏🏿
REALLY GOOD TEACHER. HE IS BEST AMONG ALL ON UA-cam .
thanks sheetal
Amazing content....
Initially I was finding Thermodynamics too much confusing and difficult but after watching this video, it's Change my perspective towards it.
Now I am finding Thermodynamics as a interesting and easiest subject.
This class is very very helpful for me thq so much my great sir
Great session.. really helpful..
Thanks sir for such a good question and there wonderfull explaintion please provide video for production also
Well explained
sir you have launched The best category of video,the untouched category.Sir are you planning to make such interview based videos on other relevant topics such as fluid mechanics and others?
This is like real knowledge of thermodynamics..🔥🔥💪 sir u r great🔥
thanks a lot
Is this u sir??
Thank you sir for your valuable classes
Great attempt to help the students and I appreciate it. I feel many concepts are explained wrong, therefore students, use this video for interview questions, check answers elsewhere….
Very helpful !! Expecting more similar videos for other subjects .
som fm ic engine already uploaded pl watch them
Sir u had done great job ...
I loved the way u explained
thanks a lot onkar
Thank you very much sir, loved the way you explain, sir pls make more videos regarding interviews on all possible subjects of mechanical
yeah m on it thanks
Sir yau are the best 🙏🙏
Excellent Video Sir
Thank you sir 🙏 for this valuable session, no one can't explain at that extent without fee.
It will be very helpful for students those who can't afford coaching.
Thank you sir...very well taught..
thanks akhilesh
Real deep concept are here without any hesitation start the video u will learn much more in this. Every concept has been explained by example to visualise thermo dynamaics
While watching thought that comes from inside,U r awesome
+ Naman Upadhyay, thanks for the kind words.
Very helpful....
Question asked from slope of constant pressure and constant volume
And slope of polytropic process on pv diagram at iit mandi
thank god, it came to end , thank u sir for your dedication, really i revised TD IN A GOOD WAY.. ONCE AGAIN THANK U.......
hi sameer i dont know it was praise or something else but i take it compliment hence thanks
Thankyou soo much sir
After 6 hours I learnt lot of things from you sir Thank you
Same to u bro
He is a torch bearer
This video contains all detail with proper manner ,thanku sir make more video
thanks sujit
Thank you so much sir 🙏❤❤
Sir You are doing a great job. 🙏
But
Sir please make a separate playlist containing all full length videos for interview questions.
Quality content !!!!
Thank you so much sir...
thank you so much sir
Sir you cover entire thermodynamics , thank u sir👏🙏♥️
thanks sumit
Sir no any word to say because u r a great teacher to completely explain thermodynamics with application with wonderful mathedology thanku god.. 🙏
thanks deepak
thanks a lot deepak
Really amazing ....thnxs a lot sir u are doing a great job ....
thanks alot akash
I have seen your previous lectures sir every lectures very clear & easily can understand ,please do lectures TOM ,Machine Design too :-)
Thank you sir, you are really great..
Thanks and all the best for your exam preparation.
thanks you sir for this
Sir please make marathon interview series on machine design and RAC
Thank u vijendra sir pls upload vedios for production,som,fm & tom.these vedios are wonderful.they are helping alot
Thanks for watching this video Priyanshu. We are working on next videos.
You are the best 👏👏👏
very good sir jee ...let the god bless u ..
Thank you for the blessings :)
sir kasam se maaja aa jata hai aapki video dekh karr
thanks
Sir, thanks a ton for helping us♥️ please upload the video related to pure substance and joule Kelvin effect. I watched the whole video that parts are missing😌
thank you very much...worderfull explanation....very helpful...
thanks sharat
When interviewer ask subject questions not related to that industry you are going and the main thing is population and sir , reading all subjects like this is not possible ,Great effort.
Fabulous......Thank u so much ....it's very helpful
thanks mayank