08000CE203122003 Pages: 2

Reg No.: Name:

Max. Marks: 100

b)
०)
2 a)
b)
3 a)
b)
4 a)
b)
5 a)
b)
6 a)

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Third Semester B.Tech Degree (S,FE) Examination January 2022 (2015 Scheme)

Course Code: CE203
Course Name: FLUID MECHANICS - I
PARTA
Answer any two full questions, each carries 15 marks.
Define the terms gauge pressure, vacuum pressure and absolute pressure. Indicate
their relative positions on a chart.
Calculate the pressure due to a column of 0.4 m of (i) water, (ii) an oil of specific
gravity 0.9 and (iii) mercury of sp. gr. 13.6. Take density of water as 1000kg/m?* ⋅
A circular plate 3 m diameter is immersed in water in such a way that its greatest
and least depth below the free surface are 4 m and 1.5 m respectively. Determine
the total pressure on one face of the plate and position of centre of pressure.
Distinguish between: (i) Steady flow and Unsteady flow. (14) Uniform flow and
Non uniform flow.
Derive continuity equation in three-dimensions
A stream function for a given flow field is given by P=3x"y-y* .Determine the
velocities at the points (1,2) and (2,3)
Describe velocity potential function and stream function.
PART ‏تا‎
‎Answer any two full questions, each carries 15 marks.
State Bernoulli’s theorem for a steady flow of an incompressible fluid. Derive an
expression for Bernoulli’s theorem and state the assumptions made for such a
derivation.
Describe with the help of sketch, the operation and use of Pitot-static tube.
A 36 metres long weir is divided into 12 equal bays by vertical posts, each 0.6 m
wide. calculate the discharge over the weir if the head over the crest is 1.20 m and
velocity of approach is 2 m/s
What is a Cipolletti weir? Derive an expression for discharge through it
An orifice meter with orifice diameter 12 cm is inserted in a pipe of 24 cm

diameter. The pressure gauges fitted upstream and downstream of the orifice

Page 1 of 2

Duration: 3 Hours

Marks

(5)

(5)

(5)

(5)

(10)
(10)

(5)

(10)

(5)
(10)

(5)
(10)