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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
SURFACE TENSION HAS THE UNITS OF

NEW TONS/M
NETON/M
NEWTONS/M
NEWTONS

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Hydraulics & Fluid Mechanics
The discharge through a V- notch varies as

H5/2
H5’4 where H is head.
H3’2
H1/2

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Hydraulics & Fluid Mechanics
A fluid is said to be ideal, if it is

inviscous
incompressible
inviscous and compressible
inviscous and incompressible

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Hydraulics & Fluid Mechanics
If a sphere of diameter 1 cm falls in castor oil of kinematic viscosity 10 stokes, with a terminal velocity of 1.5 cm/sec, the coefficient of drag on the sphere is

160
less than 1
between 1 and 100
200

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Hydraulics & Fluid Mechanics
A ship whose hull length is 100 m is to travel at 10 m/sec. For dynamic similarity, at what velocity should a 1:25 model be towed through water ?

25 m/sec
10 m/sec
50 m/sec
2 m/sec

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Hydraulics & Fluid Mechanics
An open vessel of water is accelerated up an inclined plane. The free water surface will

make an angle in opposite direction to inclination of inclined plane
make an angle in direction of inclination of inclined plane
any one of above is possible
be horizontal

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