Download GTU BE/B.Tech 2019 Winter 3rd Sem Old 130602 Fluid Mechanics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 3rd Sem Old 130602 Fluid Mechanics Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?III (Old) EXAMINATION ? WINTER 2019
Subject Code: 130602 Date: 28/11/2019

Subject Name: Fluid Mechanics
Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) What is orifice? Explain different methods to determine the coefficient of orifice. 07
(b) What is mouthpiece? Explain convergent-divergent mouthpiece. 07

Q.2 (a) What is difference between notch and weir. Classify the weirs based on geometry
of flow section and based on sharpness of the crest.
07
(b) Derive Darcy-Weisbach formula for the loss of head due to friction in the pipe
line.
07
OR
(b) What is difference between hydraulic gradient line and total energy line? Explain
different types of losses for pipe flow.
07

Q.3 (a) What is hydro kinematics? Explain methods of describing fluid motion. 07
(b) What if flow net? Describe different methods to obtain flow net in brief. 07
OR
Q.3 (a) State and derive Bernoulli?s theorem . Write its limitations. 07
(b) What is venturihead? Obtain the discharge equation for venturimeter. 07

Q.4 (a) Explain different properties of fluid in brief. 07
(b) Differentiate between manometer and barometer. Explain different types of
manometer.
07
OR
Q.4 (a) What is meant by centre of pressure? Obtain an expression for the depth of centre
of pressure when the lamina is immersed in a liquid and is at an angle with the
horizontal.
07
(b) What is buoyancy? Define centre of buoyancy and metacenter. 07

Q.5 (a) Explain how the metacentric height of a floating body can be determined
theoretically and experimentally.
07
(b) Derive an continuity equation for three dimensional flow. 07
OR

Q.5 (a) What is compressible fluid flow? Derive an expression for velocity of pressure
wave in the fluid.
07
(b) Explain the different cases of pressure wave propagation in compressible fluid. 07

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