U-235 Posted September 27, 2017 Share Posted September 27, 2017 My first exam in reactor engineering is tomorrow. This is the professor with the lowest average gpa in the entire department and one that most people re-take. Wish me luck on it guys!! 1 Quote Link to comment Share on other sites More sharing options...
Jtrekkie Posted September 27, 2017 Share Posted September 27, 2017 Good luck! Come back and let us know how you do, ok? 1 Quote Link to comment Share on other sites More sharing options...
U-235 Posted September 27, 2017 Author Share Posted September 27, 2017 I shall! It's at 6 P.M Eastern Standard Time. (he prefers to give it in the afternoon so we can get an hour and a half instead of an hour). 1 Quote Link to comment Share on other sites More sharing options...
U-235 Posted September 27, 2017 Author Share Posted September 27, 2017 I've never been more uncertain or confused on how I may have done. Because the question that counted for 45 points was either drastically oversimplified, or I began to attempt to drastically over-complicate it. The rest of it was fairly straightforward and easy. Quote Link to comment Share on other sites More sharing options...
U-235 Posted October 2, 2017 Author Share Posted October 2, 2017 Bad news.... I got a 56. Good news....the average was 50.1 with a standard deviation of 16.2. So I did get above average! Quote Link to comment Share on other sites More sharing options...
Jtrekkie Posted October 3, 2017 Share Posted October 3, 2017 Wow... Above average is good though. Did you miss that one 45 point question? Quote Link to comment Share on other sites More sharing options...
U-235 Posted October 3, 2017 Author Share Posted October 3, 2017 Funny enough I actually got 21 out of 45 points for it lol. Though I completely messed up. I got the equations right, but I thought mass flow rate was conserved, but I forgot about density changes across temperature gradients. The volume flow rate was conserved, not the mass however. Kind of weird to think of tbh. 1 Quote Link to comment Share on other sites More sharing options...
Vallium Posted October 3, 2017 Share Posted October 3, 2017 So...if you failed...and youre above average, this is essentially a test everybody is expected to fail? :< Is it just your teacher having overly difficult grading standards or is it really that hard to pass that certain section of the subject? >.> It's so awful to think about... Quote Link to comment Share on other sites More sharing options...
Lopaw Posted October 3, 2017 Share Posted October 3, 2017 At least you are not doing dimensional analysis stuff that wants you show that Cd (Cd being discharge coefficient) is dimensionless. And to rearrange a formula I find too hard to rearrange due to its size. (I can only manage small 3-4 term ones) Stuff with mass flow rate and volume flow rate caught a few of my class out at first, me included. Quote Link to comment Share on other sites More sharing options...
U-235 Posted October 3, 2017 Author Share Posted October 3, 2017 12 hours ago, Vallium said: So...if you failed...and youre above average, this is essentially a test everybody is expected to fail? :< Is it just your teacher having overly difficult grading standards or is it really that hard to pass that certain section of the subject? >.> It's so awful to think about... I mean the way it works is that everything is on a scale. Like I've had a class where I got a 64 and it counted as a B. My school as a whole just makes everything overly difficult since it's an engineering school. I don't rely on numbers anymore. It's all about the curve. 5 hours ago, Lopaw said: At least you are not doing dimensional analysis stuff that wants you show that Cd (Cd being discharge coefficient) is dimensionless. And to rearrange a formula I find too hard to rearrange due to its size. (I can only manage small 3-4 term ones) Stuff with mass flow rate and volume flow rate caught a few of my class out at first, me included. I actually had to dimensional analysis a ton for fluid mechanics. I still have to do it some for reactor engineering. I actually prefer it since it helps me make sure I get the right results. I've had to calculate Cd before I think, but I think that was last in heat transfer. 1 Quote Link to comment Share on other sites More sharing options...
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