Download DBATU B-Tech 3rd Sem and 4th Sem 2018 Dec Hydraulics I Question Paper

Download DBATU (Dr. Babasaheb Ambedkar Technological University) B.Tech 3rd Sem and 4th Sem 2018 Dec Hydraulics I Question Paper

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DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
End Semester Examination ? Winter 2018
Course: B. Tech in Civil Engineering Sem: 111
Subject Name: Hydraulics I
Max Marks: 60 Date: 05?12-2018
Instructions t0 the Students:
1. Solve all questions out 0fthef0110wing.
Subject Code: BTCVC303
Duration: 3 Hr.
2. The level question/expecled answer as per OBE or the Course Outcome (CO) on which the
question is based is mentioned in front of the question.
Use ofnon?programmable scienti?c calculators is allowed.
4. Assume suitable data wherever necessaly and mention it clearly.
Po
Solve Any Three of the following.
Explain the different applications of Fluid Mechanics in Civil Engineering.
De?ne: Surface Tension and Bulk modulus. Give proper unit of each.
Calculate the dynamic viscosity of oil, which is used for lubrication between a square
plate of size 0.8 x 0.8 m2 and plane with angle of inclination 30?. The weight of
square plate is 294.5 N and it slides down the inclined plane with uniform velocity of
0.3m/s. The thickness of an oil ?lm is 1.5mm.
When a pressure of 20.7MN/m2 is applied to 100 liters of a liquid, it?s volume
decreases by 1 liter. Find the bulk modulus of the liquid and compressibility of
liquid.
Solve Any Two of the following.
Explain in detail with neat sketch ? i) Differential U-Tube Manometer ii) Bourdon
Tube Pressure Gauge
Prove that the center of pressure of a vertical plane surface is always below the center
of gravity.
A wooden block of relative density 0.7 has width 150m, depth 300m and length
150cm. it ?oats horizontally on the surface of water. Calculate the volume of water
displaced, depth of immersion and position of center of buoyancy. Also ?nd the
metacentric height.
Solve the following.
Derive a three dimensional general continuity equitation in Cartesian co-ordinates.
The velocity of component in a two dimensional ?ow are
u= 2xy v = bzwt-xz?yZ
i) Is the ?ow possible?
ii) Determine potential function.
iii) Determine corresponding stream function.
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Solve Any Two of the following
Derive an expression for point velocity distribution for laminar ?ow between two
?xed parallel plates.
Explain with neat sketches the difference between hydro dynamically smooth &
rough boundaries.
Explain Prandtl?s Mixing Length Theory and Nikuradse?s experiment.
Solve Any Two of the following.
Write short note on Non-dimensional numbers ? i) F roude number ii) Weber
Number iii) Reynold?s Number.
Explain concept of equivalent pipe & Derive Dupit?s equation in form
What is Siphon? Explain its working with neat sketch.
*** End ***
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