Reg No.:

Max. Marks: 100

1௮

020002प0205092001/
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Third Semester B.Tech Degree (S,FE) Examination December 2020 (2015 Scheme)

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Course Code: ೮11205
Course Name: FLUID AND PARTICLE MECHANICS-I

PART A
Answer any two full questions, each carries 15 marks.

Assume density of water is 1000 kg/m’, viscosity of water is 1 cp,
Patmosphere= 101 kN/m’, and viscosity of air is 0.001 cp

What are the different properties of fluid, other than temperature and pressure,
which are relevant in fluid analysis? Explain relevance of each property.
Explain the transport law for fluid flow.
What will be the gauge pressure and the absolute pressure of water at depth 20 m
below the surface?
Classify fluids based on its property.
A continuous gravity decanter is to separate chloro-benzene with a density of
1200 kg/m* from an aqueous wash liquid having a density of 1000 kg/m’. If the
total depth in the separator is 2 m and the interface is to be 1.1 m from the vessel
floor. What should the height of the heavy-liquid outflow leg be? How much
would an error of 10 mm in this height affect the position of the interface?
Answer as a percent error.
Obtain the pressure in SI (Pa) necessary for shrinking the volume of water by 2
% at normal temperature and pressure. Assume the compressibility of water
B=4.9 x 10" Pa’.
In Figure the tank contains water and immiscible oil at 20°C. What is ۸ in cm if

the density of the oil is 750 kg/m*?

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Duration: 3 Hours

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