This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: ChE 218 Spring 2008 Exam 1 Name: ________________ Part 1 (30 points) CLOSED Book/Notes This part should take not longer then 10 minutes. Do any 5 of the six problems. Mark an X through the number you do not wish graded. When complete, turn this page over and commence work on Part 2 . 1. Consider the following three vessels: A, B, and C. Each contains water (from the same source, same temperature, water = 62.3 lbm/ft 3 ) filled to the depth of (h 2 h ). All three are open to the atmosphere (P 2 = 1 atm). A pressure reading is taken in each vessel at an elevation referenced by h 1 . Which of the following statements would you expect to find to be true? (circle one) a. P A = P B = P C b. P A > P B > P C c. P A < P B < P C (Problems 24) large storage tank (vessel A above) contains oil having a SG oil =.92. The vessel is open to the atmosphere (1 atm abs) and filled to elevation h 2 = 10 feet. The elevation h = 0 feet (datum point) and h 1 = 1 foot. 2. What is the density of the oil in lbm/ft 3 ? Work: Ans: uU gG g g uU 3. Based upon your density calculation from problem 2, what is the gauge pressure in lbs/in 2 at elevation h ? (Assume oil = 60 lbm/ft 3 if you did not do problem 2) Work: Ans: 3.98 psig uU 4. What is the pressure differential (in psi) between the elevations h...
View Full
Document
 Spring '08
 Smith

Click to edit the document details