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Found 7 results

  1. A steam turbine with an isentropic efficiency of 76% admits steam at 100 psia, 750F. The turbine discharge is at 2 psia. The shaft power developed in kW per lbm/h of steam flowing through the turbine is most nearly: (A) 0.08 (B) 0.10 (C) 0.27 (D) 262
  2. Condensed Problem statement: 40ft of 4in sch. 40 steel pipe containing five long radius 90deg. elbows + one gate valve + one sharp edge. V=16ft/s, f=0.019 Book Solution: K_entrance = 0.5 and all others included in the equivalent length as 40ft + 5(6.4ft) + 2.5ft = 65.5 and total head loss calculated as K*v^2/(2g) + f*(65.5)*v2/(2Dg) and answer = 16.7ft My method: K_entrance + K_all others = 0.5+5(0.6)+0.19 = 3.69 and total head loss = v^2/(2g)*(3.69+f*(40)/D) = 23ft I always thought the same answer is achieved whether we take K as a loss or included as an equivalent length, what am I missing here? Thank you
  3. Hello from northern California! Been lurking for a long time, I really appreciate all the great input PE test takers and test veterans have contributed. This is round 3 for me, but this time I'm WAY more serious about my efforts and revamped my whole game plan and trying to fill in the weak areas as best as I can and organize my references in the smartest way I know how. Here's a photo of my home away from home, in my home. My books and binders are all tabbed the same way: major disciplines tabbed in large print on the bottom (I find that top tabs aren't as efficient) and side tabs (top tabs only if necessary) for subtopics and major equations. I also annotated (in pen) different forms of the same equations in the borders (e.g. different versions of ideal gas, efficiencies, etc). 2018 is the year for us, good luck all!
  4. I've noticed most convective heat transfer coefficients are given to us in the problem statements, as well as several thermal conductivity values. I can't pinpoint a solid table in the MERM for Thermal Conductivity values per material. I'm wondering if anyone else has found a nice PDF online, or has other suggestions for quick reference.
  5. Happy Monday! Take a stab at this one. Show your work SPOILER ALERT: Try to solve it first; then scroll down to see the replies.
  6. ME_VT_PE


    I have purchased the Engproguides TFS practice exam in preparation for the April 2018 PE. Compared to the Lindberg practice exam, these questions seem much easier. Does anyone (taken the pe and seen the engproguides practice exam) have any insight?
  7. Good luck to everyone taking the PE Exam in April. Wondering if anyone else is using Dr. Tom's Classroom for review.
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