DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
End Semester Examination — Winter 2018
Course: B. Tech in Civil Engineering Sem: IIT
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Subject Name: Hydraulics I Subject Code: BTCVC303
Max Marks: 60 Date: 05-12-2018 Duration: 3 Hr.
Instructions to the Students:
- Solve all questions out of the following.
- The level question/expected answer as per OBE or the Course Outcome (CO) on which the question is based is mentioned in front of the question.
- Use of non-programmable scientific calculators is allowed.
- Assume suitable data wherever necessary and mention it clearly.
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Q.1 Solve Any Three of the following. (Level/CO) Marks
A) Explain the different applications of Fluid Mechanics in Civil Engineering. CO2 04
B) Define: Surface Tension and Bulk modulus. Give proper unit of each. CO2 04
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C) 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 film is 1.5mm. CO2 04
D) 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. CO2 04
Q.2 Solve Any Two of the following.
A) Explain in detail with neat sketch — i) Differential U-Tube Manometer ii) Bourdon Tube Pressure Gauge CO3 06
B) Prove that the center of pressure of a vertical plane surface is always below the center of gravity. CO3 06
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C) A wooden block of relative density 0.7 has width 15cm, depth 30cm and length 150cm. it floats horizontally on the surface of water. Calculate the volume of water displaced, depth of immersion and position of center of buoyancy. Also find the metacentric height. CO3 06
Q.3 Solve the following.
A) Derive a three dimensional general continuity equation in Cartesian co-ordinates. CO3 06
B) The velocity of component in a two dimensional flow are u=2xy v = b*x²-y²
i) Is the flow possible?
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ii) Determine potential function.
iii) Determine corresponding stream function.
Q.4 Solve Any Two of the following
A) Derive an expression for point velocity distribution for laminar flow between two fixed parallel plates. CO3 06
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B) Explain with neat sketches the difference between hydro dynamically smooth & rough boundaries. CO2 06
C) Explain Prandtl’s Mixing Length Theory and Nikuradse’s experiment. CO2 06
Q.5 Solve Any Two of the following.
A) Write short note on Non-dimensional numbers — i) Froude number ii) Weber Number iii) Reynold’s Number. CO3 06
B) Explain concept of equivalent pipe & Derive Dupit’s equation in form CO3 06
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L1 L2 L3 L4
---- = ---- + ---- + ---- + ----
D55 D15 D25 D35 D45
C) What is Siphon? Explain its working with neat sketch. CO2 06
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This download link is referred from the post: DBATU B.Tech Last 10 Years 2010-2020 Question Papers || Dr. Babasaheb Ambedkar Technological University
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