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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The region between the separation streamline and the boundary surface of the solid body is known as

wake
lift
boundary layer
drag

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Hydraulics & Fluid Mechanics
SURFACE TENSION HAS THE UNITS OF

NEWTONS/M
NETON/M
NEWTONS
NEW TONS/M

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Hydraulics & Fluid Mechanics
Mercury is often used in barometer because

both (B) and (C)
it is the best liquid
the height of barometer will be less
its vapour pressure is so low that it may be neglected

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Hydraulics & Fluid Mechanics
The horse power transmitted through a pipe is maximum when the ratio of loss of head due to friction and total head supplied is

1/3
1/4
2/3
1/2

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Hydraulics & Fluid Mechanics
Which of the following instrument can be used for measuring speed of an aeroplane

Venturimeter
rotameter
Orifice plate
pitot tube

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

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

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