Reg No.:

Max. Marks: 100

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00000BT201121902

Pages: 3

Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Third semester B.Tech examinations (S) September 2020

Course Code: BT201
Course Name: FLUID FLOW AND PARTICLE TECHNOLOGY

PARTA

Answer any two full questions, each carries 15 marks.
Explain the terms dynamic viscosity and kinematic viscosity. Give their units in
SI system. Give reasons as to why do the viscosity of gases increases with
increase in temperature and that of liquids decreases with increase in
temperature.
The specific gravity of Carbon tetrachloride is 1.594. Compute the specific
weight, specific volume and density
A solid cylinder of diameter 4 m and height 4 m is flowing in water with its axis
vertical. The specific gravity of the cylinder is 0.6. Comment on the stability of
the body. Substantiate your answer with the help of necessary calculations.
Explain the terms (1) stream line (ii) streak line (111) stream tube (iv) path line
Explain the Prandtl one-seventh rule for velocity distribution in turbulent flow
with relevant sketches and equations.
A Couette viscometer consists of two vertical coaxial cylinders of inner and
outer diameter 15 cm and 15.1 cm. The height of the cylinders is 25 cm. The
space between the inner and outer cylinder is filled with a fermentation broth of
whose viscosity is to be measured. If a torque of 12 N. m is required to turn the
inner cylinder at a rpm of 100, calculate the viscosity of the broth in SI units.
A differential mercury manometer is used for measuring the pressure difference
between two pipe lines A and B carrying two different fluids. The centre of pipe
A is 1.5 m above that of pipe B. The left limb of the manometer is connected to
pipe A having the fluid of specific gravity 1.5 and the right limb is connected to
pipe B carrying the fluid of specific gravity 0.8. The pressure in pipe A is
atmospheric pressure and that of pipe B is 1.5 x 10° ೫/೫. The height of liquid

from the centre of pipe A in the left limb to the interface of mercury is 2.5 m

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Duration: 3 Hours

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