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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
A perfect gas

is of theoretical interest
has constant viscosity
is incompressible
None of these

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Hydraulics & Fluid Mechanics
Separation of flow occurs when

the boundary layer comes to rest
the pressure intensity reaches a minimum
the cross-section of a channel is reduced
All of these

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Hydraulics & Fluid Mechanics
The discharge of a liquid of kinematic viscosity 4 cm²/sec through a 8 cm dia-meter pipe is 3200n cm7sec. The type of flow expected is

LAMINAR FLOW
TRANSITION FLOW
NOT PREDICTABLE FROM THE GIVEN DATA
TURBULENT FLOW

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Hydraulics & Fluid Mechanics
The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to

9810 PA
981 PA
91 PA
1 PA

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Hydraulics & Fluid Mechanics
The units of viscosity are

newton-sec/metre2
metre2/se
newton-sec/metre
kg sec/metre

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Hydraulics & Fluid Mechanics
The distance from pipe boundary, at which the turbulent shear stress is one-third die wall shear stress, is (where R is the radius of pipe)

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

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