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B.E./B.Tech. DEGREE DGMINATION' NOVEMBEVDECEMBER 2011
FOURTH SEMESTEB
CIVIL ENGINEERING
CET253 APPLIED HIYDRAILIC ENGINEEBING
(REQULATION 2OO8)
ANNA UNIVERSITY SYLLABUS - Click Here
PARTA-(rOxZ=20marks)
1 In an open chanael of r€ctangnlar a€ction if the mirrimurn epecifie energy is 6m, whrt i8 its critical depth?
2. A rect€neular chauel carries a Oow of 4n3/dm, what i8 iho critical depih?
3. A river with a lined banks has a Mantring's n= 0'014, and Chea/ C = 55' What is its hylraulic radius?
4. What ia equivalent rougbnes8 or coEpo8it€ roughness of an open chaonel?
5. What is the nature of 81ope of tbe channel if critical depth line occure above normal depth line?
6. What is the Btatr of Oow after tbe forEation ofa hydraulic jurnp?
. The difrerence b€tweelr the water level8 in the sunp aD
8. What i8 tlrc functio! offoot valve in a purp?
9, The work done by a fluid on a curved vane per second is 800 Jouleg' If the angrrlar velocity is 2O ra
Part B:
11. a. A diecharge of 20m3/s flowg in lOE wide rectaDgular chquuel ulder critical conditione, Find tbe depth ald Epecific energy corresponding t,o
thig coldition- Also 6nd the critical elope if n = 0.02? (8)
11. B. A trapezoialsl channel section has a bas€ width of 5m side elopes of 3H : 2V and Mar:aing'g n = 0.015. Conputo the critical elope and
correspouding discharge for a critical depth of2m. (8)
or
12. A. hove that alischarge i8 mardEum for critical flow il a rectangulat channel flow. (f1) Erumerat€ a[y five featur€s of critical flow' (5)
12. B Dedve the coDalitious for a moet ecouomical triangu.lar sectioD with vefir.;xal4le 20. (10)
or
EnuEerate the factots afrectitrg rougbless coefficieat- Writ€ aly one enpilical formula to calculate Manniag'e roughness coefficient. (6)
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