Exam Details
| Subject | Elementary Hydrology | |
| 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 | December, 2016 | |
| City, State | new delhi, |
Question Paper
Define Hydrology. Draw a block representation of a hydrologic system and explain the different hydrologic processes.
Discuss the differential heating of Earth and its effects on the atmosphere.
What do you understand by 'water equivalent' of a given depth of snow Explain the utility of radar and satellite in the measurement of precipitation.
What is the usefulness of various methods of computing the average depth of rainfall over a given area?
What are the various types of Evaporimeters Explain any one of them with a neat sketch.
Calculate by energy balance method, the evaporation rate from an open water surface, if the net radiation is 200 and the temperature is 25°C, assuming no sensible heat flux or ground flux.
What are the factors affecting evapotranspiration and what are the field methods to measure actual evapotranspiration
Distinguish between the terms potential evapotranspiration and actual evapotranspiration. Explain the relation between the two.
Bring out the difference between depression storage and surface detention. Relate the rate of depression storage to the rate of rainfall and the rate of infiltration.
What is the importance of infiltration in hydrologic cycle Discuss the practical importance of <j)-index.
The observed values of run-off, at a stream gauging site are given below: Upstream of the gauging site, a weir, built across the stream, diverts 3·0 and 0·5 million m^3 of water per month for use in irrigation and industry, respectively. The return flows from irrigation estimated at 0·8 Mm^3 per month and from the industry at 0·3 Mm^3 per month, join the stream at the upstream of the gauging site. Estimate the virgin flow of the river. If the catchment area is 120 km^2 and the average annual rainfall is 185 cm, also determine the run-off -rainfall ratios.
Month Run-off(Mm^3)
1 2·0
2 1·5
3 0·8
4 0·6
5 2·0
6 8·0
7 18·0
8 22·0
9 14·0
10 9·0
11 7·0
12 3·0
What is the main difficulty in using the slope-area method of discharge measurement?
What is Unit Hydrograph Explain about the derivation of Unit Hydrograph.
What are the direct methods of discharge measurement in a stream channel?
8. Write short notes on any four of the following:
Run-off
Double Mass Curve
Synthetic Unit Hydrograph
Recording Rain Gauges
Non-recording Rain Gauges
Infiltration Indices
Energy Balance
Discuss the differential heating of Earth and its effects on the atmosphere.
What do you understand by 'water equivalent' of a given depth of snow Explain the utility of radar and satellite in the measurement of precipitation.
What is the usefulness of various methods of computing the average depth of rainfall over a given area?
What are the various types of Evaporimeters Explain any one of them with a neat sketch.
Calculate by energy balance method, the evaporation rate from an open water surface, if the net radiation is 200 and the temperature is 25°C, assuming no sensible heat flux or ground flux.
What are the factors affecting evapotranspiration and what are the field methods to measure actual evapotranspiration
Distinguish between the terms potential evapotranspiration and actual evapotranspiration. Explain the relation between the two.
Bring out the difference between depression storage and surface detention. Relate the rate of depression storage to the rate of rainfall and the rate of infiltration.
What is the importance of infiltration in hydrologic cycle Discuss the practical importance of <j)-index.
The observed values of run-off, at a stream gauging site are given below: Upstream of the gauging site, a weir, built across the stream, diverts 3·0 and 0·5 million m^3 of water per month for use in irrigation and industry, respectively. The return flows from irrigation estimated at 0·8 Mm^3 per month and from the industry at 0·3 Mm^3 per month, join the stream at the upstream of the gauging site. Estimate the virgin flow of the river. If the catchment area is 120 km^2 and the average annual rainfall is 185 cm, also determine the run-off -rainfall ratios.
Month Run-off(Mm^3)
1 2·0
2 1·5
3 0·8
4 0·6
5 2·0
6 8·0
7 18·0
8 22·0
9 14·0
10 9·0
11 7·0
12 3·0
What is the main difficulty in using the slope-area method of discharge measurement?
What is Unit Hydrograph Explain about the derivation of Unit Hydrograph.
What are the direct methods of discharge measurement in a stream channel?
8. Write short notes on any four of the following:
Run-off
Double Mass Curve
Synthetic Unit Hydrograph
Recording Rain Gauges
Non-recording Rain Gauges
Infiltration Indices
Energy Balance
Other Question Papers
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