ngl most recent review is completely wrong lol. This was quite hard compared to 105D with Lavine at least. It was similar in content except he derived everything in a more convoluted way often with a lot of mistakes and missed steps. Also he would stand directly in front of the board while writing and then just stand and stare at it after he finished so it was difficult to follow along. It went a bit beyond 105D in content but it's mostly just additional formulas and methods to use for a wider range of problems. Dhir had a few jokes but he is not the friendliest since he often had some snappy responses to people answering his questions incorrectly. He had a hard time understanding people's questions since the material is so easy to him. Homeworks (15%) were only a few questions but holy hell they are complex. They were beyond the class material, and it was annoying to spend so much time interpolating tables to find properties to use. Make sure you use your resources *wink*. He lectures on derivations a lot but just tune that out because you don't need to know it (and you won't learn them successfully anyway unless you go to the TA (shoutout Atindra the goat) ). Open note tests are nice, but the final was a little challenging (50% final, 25% midterm). There is a group design project (10%) that is annoying but it's really just a long homework problem. TA was very helpful for that. I wouldn't really recommend this class but you'll survive it if you have to.

I was actually pleasantly surprised by this class. I was really worried about 131A after taking 105D and struggling, but this is a pretty painless way to get the thermo requirement done for mechanical engineering.

Professor Dhir is really nice, and clearly cares about learning and the material. His homeworks are great - maybe 2 or 3 questions a week (not time-consuming at all). The midterm and final were open book and notes. I'd take a class with this professor again for sure.

This is my first time writing reviews, and that can be helpful for sb will take this class.

Professor Vijay really care his students and always asks student to participate. He really encourages questions. Though sometimes he might get a little impatient, it does not influence you asking him again. He will always explain again to you.

Admittedly, the first part of this courses is most about deriving questions for different situations. I learned a lot from that. Instead of grabbing formula from textbooks, I learn how those correlations come from. It's fundamental especially in the field of heat transfer.

The later half of this class goes pretty fast due to the time limit, and I hope there can be more time into those topics.

Overall, Professor Vijay is really good and respectable person.

Professor Dhir was honestly one of my least favorite professors at UCLA. His lectures are very unengaging and full of mistakes. Several times, his lecture material directly contradicted with the textbook. He is very unreceptive to questions and handles them in a very rude manner. In lecture, he will constantly ask for the class to participate and ask questions but gets mad when they ask him for clarification on something. He'll usually just say that the concept was covered earlier. Also, when some students correct him, he'll often get annoyed at first. One time, he completely shut a student down before others stepped in to clarify the correction. Also, the class does very little to build on the material taught in 105D. I learned almost nothing new in the class. More than that, the majority of the class is spent deriving equations with no explanation or context given to understand when to apply them.

Professor Dhir is the worst professor I've ever had the bad luck to end up in a class with. He literally would go 10+ minutes on end writing on the chalkboard without ever turning around to look at the class. He once asked a question and said 'there are no wrong answers' and then got the entire class to laugh at me because I didn't say the answer he wanted. His tests are fine I guess and the class is so similar to 105D (even with the same textbook) that you can scrape by without him but I basically taught this class to myself. I felt less good about something after attending a 'lecture' on it, if you can even call classes lectures. He just derives equations without really explaining anything about them or how to use them. if you feel really good about the topics from 105D, take this class but expect absolutely zero help from the professor.