CIVE 340 Midterm CIVE 340, Fall 2008

C.J. Ingiessis November 25.2008 Fall Term 2008-2009 Co Book (2 § : \ ae josed Boo e Tours) Name :_ k eto LU R ~ Student No ; bs om “ky ee Section :__ ’ cs Rohe —<$__$____ Problem No. 1 (20%) a. Give the dimensions in the F, L, T system for the following Properties: Kinematic viscosity, ‘ o 4 = A > cone ¥ L a GRO ti — Surface:tension, Bias aS ae a 7 = iii Work, y= + P seed a iv Density; — H lp vy. Angular -veleeny, b. Match the equation and the definitions e- Definitions pi u ; OT dy Ko: AAT pi y the stan vat has the following rate of deformation end corresponding shear jc ™ N/m? 6 ¢giags piczometss of 8mm diameter at 2 height of 50mm. Commut: ~~ Takey = 9810-Nim3 and o = 0.0742 Nim. a: ~ ees of e { OF ENGINE AMERICAN U ERUNG AND ARCHITECTURE IVERSITY OF BEIRUT CIVE 340 Finid Mechanic and Laboratory Eni! Term 2009-2030 MID-TERM EXAM Closed Book (1 i2 Hours) Name Li4 Student No Zeachc } Section & Problem No. ! (20%) This problem should be answered on the qu thi SStion sh Any s 1. Give only answers in the provided spaces end of the answer book ; a. Using the F. L. T system of dimensions, give the dimensions of the following quantitie: ‘ FL Power Le n Angular velocity — : rT. 1 v m Vynamic viscosity <—— iv Reynolds numbe: wes ALO eas BA U v Mass rate of flow / 7 b. Classify below the curves shown on the graph of t vs du/dy ( A: ot urve ii Curve B Bish 2, iij Vesastanian usd iv i, plonl ¥ c. Classify the foliowing flows (a) as unif (S) or un, eady (US) Drinking througt raw ii. Liquid draini om a ht tank: Nad} iii. Constant flow through a reduce; iv. Rainfall in mid-storm tch work should be done a v. Flood hydrograph: Page 1/3 Problem No. 2 (20% ameter shaft abricam in the 8.0x10% m/e pulled through a D gap between shaft and density of 900k g/ required to py} the a} Ylinidrica) siseve and sleeve js 48 shown in the figure, The an oi) having « kinemati m”. For the cond itions showr n the figure determine the Velocity of 3rn/< tA Problem No. 3 (20% em No. 5 (20%) ye) ¢ figure contains water ¥=9.81K W/m", x »-G.=13,6 and air, in conditions showr 1 in the figure 2 FIG) indicate with an > imum pressure occ >) ‘Comput ad give its value, o and Spaces ] and 2 A cylinder, 100mm in dia cylinder js \evlinder js ter, is dropped inte a ne 100.4 i = ~ that the Pr 8 vertical pipe 100.5mm in diamet “oncentric with the pipe as it fall through 200; @! 4 constant locity Viinder een lengthy, and iw N.y The oi! film lubricant separating pipe ar 2 incer has a kinematic viscosity of 3.93107 mr wad & Gonsiey of S0ticate i the cylinder Vat as f Hann nm Wide, a hown in the figure bel it rofile is given by th l (hy ) ¥ o ; ) w the mean velocity \V aischarge q in terms of h and . P| ~ } wv The tank shown in the installed in the slanting bottom of the tank. For the « at point “A op t N the weight of a4 gate is ] m wide (into water depth is For the conditions ind, to start opening Neglect the weight of Problem No, 5 25% The gate ‘ABC’ shown in the page Icated on the figure at point ‘A’ gate the figure below re ). The gate opens at A high enough on face ‘BC* rotates around the hinge placed at ox 10 release water from the reservene ¥ of the gate determine the length “ > fe OF is r 4 / 4 — a! 7 aye Te ep We, Be : Lo" = — rn To la ee recture , G AND ARCHIT? ay ae att TV OF ENGINEERING eee WERRUT FACULTY OF ENGINEERING AND ARCHITEC Tine AMERICAN UNIVERSITY OF RETRY r CIVE 340 Finid Mechanic and Laboratory CuLInglessis April 12, 2010 tarred Spring T erm 200° 200 MID-TERM EXAM (VERSION fy Closed Book (1 12 Hours) Name : Faiah... tamecteioth Stadem No BOE Nie Section 7 Problem No. 1 (40%) This problem should be answered on the question sheet Any scratch work showld he doce the end of the answer booklet, Give only answer s in the provided space a. Using the M, L, T system of dimensions. give the dimensions of the ONowing anaritities i. Dynamic viscosity 4 fee A ii. Angular velocity Yr dh iii. Power Hy +? Ly iv. Work —__ if 23 wt v. Surface tension ace ee engl f b. On the graph of t vs du/dy. draw the : ad curves for the following s ces and 1B " y label each: r J i. Oil at 40°C * call P at a ii Water at 40°C iii. Oil at 20°C iv. Heavy Pain ‘ZZ V Blood oY, " — = c. Water stands in a clean glass piezometer mm diameter at ¢ height of os The true static height h is d. \ Av glass containing lemonade has a specific gravity S=! A person drinking from the 3.6. The longest vertical length glass using a straw applies a su straw ‘h” that 2mm Hg. S person can use to finish the gias Classify the following flows (a) as uniform (U) or (S) or unsteady (US) Constant flow through a reducer non-uniform Flood discharge in a river Water flowing out of a buck Liquid jet draining fro in the bottom of a tank For the dam shown on the figure and the indicated conditions hydrostatic forces Fy and Fy on the dam. Im long (NU) and (b) as steady b) 4 b) "Se: Do). af cP, ‘ / pp penteensl | ales (into the page) are: A liquid flows in the open channe as shown in the figure. The velocity profile is given by the equation: k(hy-y rr “ROTI ANT ABCUITECTUR Problem No, 2 (20%) In the figure shown below i an inclined mercury differemial anoMeler measuring the pressure d ee between points A and B. Fo the conditions indicated in the figure jevermine The pressure difference P, — } The change in the elevatior ury in th ft | the manor it of an increase j ir 40 & n # hile the pressure at B remair the sam ; - _ 30 am t ge , | q- E% 3D? Problem No. 3 r In the figure showr w is @ water tank that has # circul: 2Drn ict Giaenetee bias in the Sianting th The . ‘ ank unted or along its horizonta diarne! throug} mt *O". For the condition indicated in the figure, determine and location of the resultant force exerted on the gate by the water b. The torque required on the pivot haft to keep the gate from opening rt ct : a. k=l “a c. Crrinlme Gete - 2.0m Problem No. 4 (20%,