Exam Details
| Subject | Mechanics of Fluids | |
| Paper | ||
| Exam / Course | B.Tech. Civil (Construction Management) / (Water Resources Engineering)/ (Aero Space Engineering) BTCM-BTWRE | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | June, 2016 | |
| City, State | new delhi, |
Question Paper
No. of Printed Pages: 3 IET-20l(A) I
B.Tech. Civil (Construction Management) I
B.Tech. Civil (Water Resources Engineering) I
B.Tech. (Aerospace Engineering)
Term-End Examination June, 2016 01500
ET-201(A) MECHANICS OF FLUIDS
Time: 3 hours Maximum Marks: 70
Note: Attempt any seven questions. Assume any missing data. Use of non-programmable calculator is permitted.
1. Define the following: 5
Density
Water Hammer
Kinematic Viscosity
Surface Tension
Cavitation
What is fluid static? Explain the working of a manometer with a suitable diagram. 5
2. A cube of side and relative density floats in water. Determine the condition for its stability against angular tilt. 5
Explain the following: 5
Steady and Unsteady flow
Velocity potential and Stream function
3. What do you understand by continuity equation? Derive the continuity equation for steady and compressible fluid flow. 3+7
4. What is dimensional homogeneity? Explain the significance of the n-theorem. 5
Derive the Euler's equation for incompressible fluid flow. 5
5. Explain the application of momentum equations with case of force exerted on a pipe-bend. 5
A jet travelling 450 km/hr through still air, y =10 discharges 1000 through its two propellers of 2.25 m diameter each. Determine the theoretical efficiency, and the thrust. 5
6. Define the following: 5
Suppressed notch
Contracted weirs
Derive the equation of rate of flow for a triangular notch. 5
7. Derive the Navier-Stokes equation of motion. 10
8. What are eddy viscosity and mixing length concepts? 5
Explain the development of boundary layer concept over flat plate with a suitable diagram. Also derive the relation for momentum thickness. 5
9. Define the following: 10x1=10
Boundary layer
Boundary layer thickness
Viscous layer
Laminar sub-layer
Drag
Momentum thickness
Drag coefficient
Velocity distribution
Reynolds number
Rough and smooth boundary
10. An aeroplane weighing 22000 Newtons has a wing area of 22 m^2 and a span of 10m. What is the lift coefficient, if it travels at a speed of 300 km/hr in the horizontal direction Also calculate the theoretical value of circulation and angle of attack. 5
What is magnus effect? Also define the shape of airfoil. 5
B.Tech. Civil (Construction Management) I
B.Tech. Civil (Water Resources Engineering) I
B.Tech. (Aerospace Engineering)
Term-End Examination June, 2016 01500
ET-201(A) MECHANICS OF FLUIDS
Time: 3 hours Maximum Marks: 70
Note: Attempt any seven questions. Assume any missing data. Use of non-programmable calculator is permitted.
1. Define the following: 5
Density
Water Hammer
Kinematic Viscosity
Surface Tension
Cavitation
What is fluid static? Explain the working of a manometer with a suitable diagram. 5
2. A cube of side and relative density floats in water. Determine the condition for its stability against angular tilt. 5
Explain the following: 5
Steady and Unsteady flow
Velocity potential and Stream function
3. What do you understand by continuity equation? Derive the continuity equation for steady and compressible fluid flow. 3+7
4. What is dimensional homogeneity? Explain the significance of the n-theorem. 5
Derive the Euler's equation for incompressible fluid flow. 5
5. Explain the application of momentum equations with case of force exerted on a pipe-bend. 5
A jet travelling 450 km/hr through still air, y =10 discharges 1000 through its two propellers of 2.25 m diameter each. Determine the theoretical efficiency, and the thrust. 5
6. Define the following: 5
Suppressed notch
Contracted weirs
Derive the equation of rate of flow for a triangular notch. 5
7. Derive the Navier-Stokes equation of motion. 10
8. What are eddy viscosity and mixing length concepts? 5
Explain the development of boundary layer concept over flat plate with a suitable diagram. Also derive the relation for momentum thickness. 5
9. Define the following: 10x1=10
Boundary layer
Boundary layer thickness
Viscous layer
Laminar sub-layer
Drag
Momentum thickness
Drag coefficient
Velocity distribution
Reynolds number
Rough and smooth boundary
10. An aeroplane weighing 22000 Newtons has a wing area of 22 m^2 and a span of 10m. What is the lift coefficient, if it travels at a speed of 300 km/hr in the horizontal direction Also calculate the theoretical value of circulation and angle of attack. 5
What is magnus effect? Also define the shape of airfoil. 5
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