Question 1 : How many years of minimum rainfall is required to design hydroelectric projects?
1. 10
2. 20
3. 25
4. 35
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Question 2 : In which of the following rain gauging methods are the values of rainfalls of all stations added?
1. Arithmetic mean method
2. Thiesson method
3. Iso-hyetol method
4. Recording type
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Question 3 : What is the volume of rainfall in day sec-meters if 6.5cm rainfall occurs over an area of 2400 sq.km?
1. 1805.56 day sec meter
2. 1225 day sec meter
3. 895 day sec meter
4. 1555.22 day sec meter
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Question 4 : The maximum rate of flow through the river is calculated by _________
1. Energy curves of flow
2. Force of flow
3. Pressure of flow
4. Head of flow
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Question 5 : What is DWF?
1. Deep water flow
2. Dry weather flow
3. Drawing web format
4. Dam water flood
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Question 6 : Water containing H₂S, CO₂ and CH₂ are less corrosive to dam structure?
1. True
2. False
3.
4.
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Question 7 : Presence of Corrosive gases like H₂S and SO₂ affect the voltage drop.
1. True
2. False
3.
4.
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Question 8 : Two successive Iso-hyetes in the basin drawing of catchment area are measured using _______
1. Planimeter
2. Manometer
3. Mass flow meter
4. Chronometer
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Question 9 : Iso-hyete method is commonly used for the basin area above 500sq.km?
1. True
2. False
3.
4.
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Question 10 : Rainfall is also known as ___________
1. Precipitation
2. Condensation
3. Infiltration
4. Down pour
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