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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called

osmosis
viscosity
surface tension
co-efficient of viscosity

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Hydraulics & Fluid Mechanics
Flow at constant rate through a tapering pipe is i) steady flow ii) uniform flow iii) unsteady flow iv) non-uniform flow The correct answer is

(i) and (ii)
(ii) and (iii)
(ii) and (iv)
(i)and(iv)

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Hydraulics & Fluid Mechanics
Normal depth in open channel flow is the depth of flow corresponding to

laminar flow
uniform flow
unsteady flow
Steady flow

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Hydraulics & Fluid Mechanics
SURFACE TENSION HAS THE UNITS OF

NETON/M
NEWTONS/M
NEW TONS/M
NEWTONS

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Hydraulics & Fluid Mechanics
Drag force is a function of i) projected area of the body ii) mass density of the fluid iii) velocity of the body The correct answer is

(ii) and (iii)
(i), (ii) and (iii)
(i) and (iii)
(i) and (ii)

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Hydraulics & Fluid Mechanics
The difference of pressure between the inside and outside of a liquid drop is

(d)p = 2T/r
p = T/2r
(b)p = T/r
(a)p = Txr

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