Exam Details
| Subject | Flow in Open Channel | |
| 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
In what ways is the open channel flow different from the flows in closed conduit?
Find the bed slope of a trapezoidal channel using Chezy's formula having bed width 4 depth of water 3 m and side slope of 2 horizontal to 3 vertical, when the discharge through the channel is 20 m^3/sec. Take Manning's n 0·03.
For a short laboratory flume, the effect of end conditions causes the flow to be non-uniform. What would you do to achieve a nearly uniform flow?
A 5·0 m wide rectangular channel carries 15·0 m^3/sec discharge at a depth of 1·5 m.
What is the critical depth?
What is the specific energy
Is the flow subcritical or supercritical
What is the depth alternate to 1·5 m
Show that for a horizontal frictionless channel, the minimum specific force for a specified discharge is obtained at the critical depth.
For a hydraulic jump in a rectangular channel, derive the following relationship. Also state the assumptions involved in the derivation.
Y1Y2(Y1+Y2) 2q^2/g
EL (Y2-Y1)^3/4Y1Y2
where EL is the energy loss, q is the discharge per unit width and Y1 and Y2 are sequent depths.
A hydraulic jump occurs in a rectangular channel and the depths of flow before and after the jump are 0·5 m and 2.0 respectively. Calculate the critical depth and the power lost per unit width of the channel.
Explain the distinction between uniform and non-uniform flow. Show that in an open channel of constant width, the slope of the water surface with respect to the bed is given by
dy/dx
Using the basic differential equation of G.V.F., show that dy/dx is positive for S1, M3 and S3 profiles.
Explain the stepwise procedure for computation of G.V.F. by standard step method.
Differentiate between a 'backwater curve' and a 'drawdown curve'.
An open channel has the following boundary materials:
Fine sand
Silt
Coarse sand and gravel
Boulders
Fine soil with aquatic weed growth
Arrange these in order of increasing roughness indicating an approximate value of the Manning's roughness n.
A rectangular channel with a bottom width of 4.0 m and a bottom slope of 0.0008 has a discharge of 1·5 m^3/sec. In a gradually varied flow in this channel, the depth at a certain location is found to be 0·30 m. Assuming n 0.016, determine the type of G.V.F. profile.
7. Write short notes on any four of the following:
Velocity Distribution in Open Channel Flow
Hydraulic Grade Line and Total Energy Line
Types of Hydraulic Jump
Types of Open Channel Flow
Dimensionless Numbers
Specific Energy Curve
Find the bed slope of a trapezoidal channel using Chezy's formula having bed width 4 depth of water 3 m and side slope of 2 horizontal to 3 vertical, when the discharge through the channel is 20 m^3/sec. Take Manning's n 0·03.
For a short laboratory flume, the effect of end conditions causes the flow to be non-uniform. What would you do to achieve a nearly uniform flow?
A 5·0 m wide rectangular channel carries 15·0 m^3/sec discharge at a depth of 1·5 m.
What is the critical depth?
What is the specific energy
Is the flow subcritical or supercritical
What is the depth alternate to 1·5 m
Show that for a horizontal frictionless channel, the minimum specific force for a specified discharge is obtained at the critical depth.
For a hydraulic jump in a rectangular channel, derive the following relationship. Also state the assumptions involved in the derivation.
Y1Y2(Y1+Y2) 2q^2/g
EL (Y2-Y1)^3/4Y1Y2
where EL is the energy loss, q is the discharge per unit width and Y1 and Y2 are sequent depths.
A hydraulic jump occurs in a rectangular channel and the depths of flow before and after the jump are 0·5 m and 2.0 respectively. Calculate the critical depth and the power lost per unit width of the channel.
Explain the distinction between uniform and non-uniform flow. Show that in an open channel of constant width, the slope of the water surface with respect to the bed is given by
dy/dx
Using the basic differential equation of G.V.F., show that dy/dx is positive for S1, M3 and S3 profiles.
Explain the stepwise procedure for computation of G.V.F. by standard step method.
Differentiate between a 'backwater curve' and a 'drawdown curve'.
An open channel has the following boundary materials:
Fine sand
Silt
Coarse sand and gravel
Boulders
Fine soil with aquatic weed growth
Arrange these in order of increasing roughness indicating an approximate value of the Manning's roughness n.
A rectangular channel with a bottom width of 4.0 m and a bottom slope of 0.0008 has a discharge of 1·5 m^3/sec. In a gradually varied flow in this channel, the depth at a certain location is found to be 0·30 m. Assuming n 0.016, determine the type of G.V.F. profile.
7. Write short notes on any four of the following:
Velocity Distribution in Open Channel Flow
Hydraulic Grade Line and Total Energy Line
Types of Hydraulic Jump
Types of Open Channel Flow
Dimensionless Numbers
Specific Energy Curve
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
- National Centre for Disability Studies (NCDS)
- School of Agriculture (SOA)
- School of Computer and Information Sciences (SOCIS)
- School of Continuing Education (SOCE)
- School of Education (SOE)
- School of Engineering & Technology (SOET)
- School of Extension and Development Studies (SOEDS)
- School of Foreign Languages (SOFL)
- School of Gender Development Studies(SOGDS)
- School of Health Science (SOHS)
- School of Humanities (SOH)
- School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
- School of Performing Arts and Visual Arts (SOPVA)
- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
- School of Social Sciences (SOSS)
- School of Social Work (SOSW)
- School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
- School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
Subjects
- Agricultural Legislation and Management
- Building Architecture
- Building Services
- Chemistry
- Computer Applications
- Computer Programming and Numerical Analysis
- Concrete Technology & Construction Techniques
- Construction Management-I
- Construction Management-II
- Construction Works Supervision
- Design Detailing
- Earth & Its Environment
- Elementary Hydrology
- Engineering Materials
- Engineering Mechanics
- Engineering Thermodynamics
- Flow in Open Channel
- Foundation Engineering
- Ground Water Development
- Hydraulic Structures
- Hydraulic Structures-I
- Hydraulic Structures-II
- Hydrology
- Inventory and Stores Management
- Irrigation Engineering
- Materials Science
- M a t h e m a t i c s I I I
- Mathematics- I
- Mathematics- II
- Mechanical Equipmentsin Construction
- Mechanics of Fluids
- Open Channel Flow
- Operation and Maintenance of Construction Equipment
- Physics
- Planning Construction of Buildings
- Pollutants and Water Supply
- Principles of Electrical Science
- Principles of Engineering Management and Economics
- Quantity Surveying & Valuation
- Repair and Maintenance of Buildings
- Soil Conservation and Agronomy
- Soil Mechanics
- Soil Science
- Strength of Materials
- Structural Analysis
- Structural Design- |
- Structural Design- II
- System Methods
- Technical Writing
- Testing for Quality Control
- Transportation &Traffic Engineering
- Waste Water Treatment
- Water Resources Planning