CivE331FinalWinter07-sample

CivE331FinalWinter07-sample - UNIVERSITY OF ALBERTA FINAL...

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Unformatted text preview: UNIVERSITY OF ALBERTA FINAL EXAM Civ E 331 — Applied Hydraulics April 2007 CLOSE BOOK. One formulae sheet provided. PERFORM ALL WORK ON EXAM SHEETS o . uestions related to this exam will be answered durin the exam! akean assumtions on need. ‘ (PRINT) (SIGNATURE) ID NUNIBER: CivE 331 Final Exam page 1 of 3 1. (a) Find the flow in each pipeline and the pressure at node I. Assume that Hp = 70 - 700 Q2 and note the demand at junction] is Q] = 50 L/ s. The elevation of Reservoir A is 40 m, and Reservoir B is 95 m. The elevation of the junction J is 50 m. The pipes are Pipe 1: L1 = 70 111, D1 = 406 mm, and f = 0.015. Pipe 2: L2 = 700 m, D2 = 305 mm and f = 0.015. Pipe 3: L3 = 300 m, D3 = 305 mm and f = 0.015. (b) If the pump can only be operated at 90% of its design speed, adjust the pump performance curve. (12 marks) P\=§§J:L 37.37 a“??? 6') 5R7]; 37,0‘, 123:1ng EMU“ “’6'” _ 1+0 + HP: 616 + 12‘ QC? (2432: +9369; 3L Hrmas wmfi M an \LH (Mao? ”1/ W éH‘osgs + #7146}. , “1H Q, 4, 035 (gr—o‘lafio‘oozs szvto'vmo 617 1177617” MUG). rlwpé =0 1‘”le 3 M"#” T 04/ 8’ 6/5] "Lyn/[7 av; Qz‘; ”fie/5) , 0.3: 63045) ()1: pmgm mi jiunci'clw 5 C43 Hjjq5+ 1230; : qg+a¢6 (w H3 c nggo €45.06 =3 $196.05 (W 3' 00) 007—700(00‘3‘ 7, am , flu , “it; :7 Min/w WU O 615756?— » UJI1 00" (31 (g _, , Q Cay/”73.3 7) ' / @7- ,> (91’ “OH ll) -/ I .../ DUI 001 7, HP! 10%! = 70 ’700{ “1&0 CivE 331 Final Exam page 2 of 3 2. A triangular sill with a maximal height (hs) of 20 cm is placed in a horizontal channel. The flow rate in the channel is 40 L/ s, and the channel has a rectangular cross-section with a width b = 40 cm. (a) Find the water depth at the sill crest, and give the equation for solving M" the water depth at the upstream (Y‘l) and downstream (y:) of the sill. (b) Assuming that y1 = 40 cm and Y2 = 5 cm, find the force acting on the sill. 493; (10 marks) a: 0‘06”) MA) Crctttd and 04 My” amt x/ \- Ec¢tjb+rg520tl50 W) /(2:: CivE 331 Final Exam page 3 of 3 3. A lake discharges into a steep channel. At the channel entrance the lake level is 1.5 m above the channel bottom. Neglecting losses, find the discharge for the following geometries: (a) Rectangular section with a width of b = 3 m, ' (b) Trapezoidal section with a bottom width b = 3 m, and side slopes of 1:1. (9 marks) '1] h—LlKg M Energy) eggn Vb"). , v5" h’ ‘Ac‘L {a 7’15”“ \ 30%“, F01 0c WCfinaulm crass-34’6“” ‘Fr; Vfid 5 c "96%; 3 627- Vc A t Vc b (jg 7’ q'%q «Hg/S) <3) i x 4" Tia l 0 WMW‘L 320““ b A“ (agngi) A: b‘j+ (37/ /\r (0‘06") . : b+2‘j A V 0: WT: N Wjolrwi‘L 0‘2?“ D; f ’ FY; f9 :' V56: 33 1, 5°33” +3i’lc’q to ___-/___,,___,—4 ’9 (Q : VAc'leSS En A) (C) mam Mmme 4431‘“ “Wk “5*“? ”‘ ' Cg) chock (Am/FM" 3/9"“; 0km!" F l \ CivE 331 Final Exam page 4 of 3 4. (a) Sanitary sewer design has the following requirements: Design flow depth 0 8 O ' Maximum distance between manholes l 2 O m Minimum depth of cover 2 \ 6 111; Minimum peaking factor 2 ‘5 For water distribution system design give the representative values for the following 0 Minimum operating pressure during peak hour 2 80 (kPa) 0 Minimum operating pressure during fire flow [ 40 (kPa) O Smallest diameter local pipe l f E 0 (mm) 0 Per capita water consumption in the City of Edmonton a 00 (chd) (b) Given the data below, design section of sanitary sewer to carry these flows. Manning n = 0.013. Make a profile drawing. To satisfy the minimum velocity requirement, you can assume that the design flow velocity is the same as the pipe full velocity, i.e. Vd = Vt.) manholes m L/s manholes m _—__ C to D 120 150 C — 91.53 D — 91.55 (14 marks) i \‘dm'l’h m ‘ > Z 0 :2“ 3”“ , qul Sic 2 570* W396i?— 6 F 6‘: q 0 =- 2 0/0 31 : 2 o/“' S = (9 °/, 3 Gd] 1’ 0M3 (mg/5) 0996“ ’90)“) Ga 2 0% :: Q41 :Qmo’)’ (M3753) / Qd’g 5 0471+ 6M 5) Z c ti; w" ”v WWW“? such?) 1 $3., _._...._...—— , 3/; 1/; balm/3‘15 9 5/} oumai 3ft: 1 WW P‘W land Z, we WM gall»! m jr 6’ 0”; D‘1b m ) Dg : 0‘182 m. Fw M2 6, MSW a 5W at M?» 77 ps‘oww ("D fide&'@wwc$vmd?r aMiS“F%‘ “OF/)2 m ’/ 305 mm ‘1‘: U;/ A L17} : 30g Mm \ 123 Pgfi;\§%:a Ow§@fl\w W 4% Y1 j/+{\£ZO'Z/ 2/0] \fjl’z‘]. :L/{Ifi’ (WV/(W -—--*' .‘3’ '75 "'1 x 9 mid," h) / ,_ */ {/ \L ’ )Ar)IJ/ 5 K 5,?“ ) L J > ”my A if} _ 15 05.142 42.4; ’r/ P \_//\l ' ‘I ['0 ' z": {6 / j 10 174'; w» "L d9/ 90 ...
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