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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Ay between two stream lines represents

head
discharge
pressure
velocity

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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
1 PA
91 PA

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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

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

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Hydraulics & Fluid Mechanics
The continuity equation pi V,A,= p2V2A2 is based on the following assumption regarding flow of fluid (where pi and p2 are mass densities.)

incompressible flow
steady flow
uniform flow
frictionless flow

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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

less than 1
160
between 1 and 100
200

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Hydraulics & Fluid Mechanics
If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its

specific weight
specific gravity
specific density
specific mass

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