4 Define -ftuid
fiuid is a Sub s-tance that deform
Continuousy under the actton of shea stress
nomattez T{Tt 1's gma
I t has no dofinite Shape ef rts own, but
Con-firms to the Shape of the cntane
fluid ensist ofuquid and gases.
Example brea thinganinking bloo
Crculatton inthe human bady. iui'dets eve/eohee
in the acean,
inthe atmasphere and aound
the airCvaft 0ra missile ete.
Afluid mechaniSmS3-
The fiuid mechanics s the branch of
engineeig Ieience, which decils uith the behaviou
of fluids either in rest or in mo-ton. o
hydvaulics z-
Hydralichasbeen derived ram Greek hWerd
Hodour uwhich medns nlatezp
Hydvauulies is theranch etuidmechanics, which
deals with the be ha uiou of hlate) incompeble
Aluids) eithe in motion ar în est-
2Listany four Locatrons in faaton twhere
hyd vauilc principles are LSed.
APplitation to irviafon enqimoeing
2Canals
, 3.SPillways Pago No
ato
4Lf miyation Syshm
S. SPmkler mgaHio Syserm
Define the 6llo wing and otale their Units -
Mass density
The densty ef a liquid fs deltnedas he mass
peL Untt Volume
I t s denete d by49 ho) S.L unit ska/
Mass densily et nwater fs lccokg [m
Volume V
SPecifre weight
The Spe cffe ueight ofa liquid is desned
as Weiqht per Lnft Volunme at astandand
temperatue and Pressuae
TtIs denoted by "Wior y gam ma).
I t hasS:I UniE N/m3.
Specific weight of watu?s gaio N/m3
9.8/ kN/ms).
Y Weiyht-
Vo/ume
W mi -f9
V
V
YSa
he speeie. tughéBdeponds dn ghaahine
aueleakèn Ond the mass densily snce gauitahine
attractfeh Vajas fem place to plae, Hhe
eeHi CLUnght cutfll ako uay
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