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0800MPT203122004

Module 2
a) State and explain hydrostatic law.
b) The right limb of a simple U-tube manometer containing mercury was open
to atmosphere while left limb is connected to a pipe in which a fluid of specific
gravity 0.9 is flowing. The centre of the pipe is 14cm below the level of mercury
in right limb. Find the pressure of fluid in the pipe, if the difference of mercury
level in the two limbs was 18cm.
a) With the help of neat sketch, explain the working of Bourdon pressure gauge.
b) A rectangular plane surface is 2m wide and 3m deep. It lies in vertical plane
in water. Determine the total pressure and centre of pressure on the plane
surface when its upper edge is horizontal i) coincides with water surface ii) 2.5
meter below of free water surface.

Module 3
a) Derive the Bernoulli’s equation.

b) A 35cm diameter pipe, conveying water, branches in to two pipe lines of
diameter 20cm and 15cm respectively. If the average velocity in the 35cm
diameter pipe is 2.5m/s. Find the discharge in this pipe. Also determine the
velocity in 15cm diameter pipe, if the average velocity in 20cm diameter pipe is
2m/s.

a) Derive Darcy-Weisbach for energy loss due to friction in a circular pipe when
the flow is turbulent.

b) A pipe of diameter 300mm and length 3500m used for transmission of power
by water. The total head at the inlet of the pipe is 500m. Find the maximum
power available at the outlet of the pipe if the value of Darcy’s friction
coefficient f is 0.006.

Module 4
a) With a neat sketch, derive the expression for discharge through an

orificemeter.

b) An oil of specific gravity 0.8 is flowing through a venturimeter having inlet
diameter 20cm and throat diameter 10cm. The oil- mercury differential
manometer shows a reading of 25cm. Calculate the discharge of oil through

horizontal venturimeter. Take coefficient of discharge as 0.8.

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