Question 51 : On what aspect is precipitation calculated?
1. Based on hydrological aspect
2. Based on climatic conditions
3. Based on the vegetation of the area
4. Based on weather forecast
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Question 52 : Find out the total flow volume in day sec meter for the average daily stream flow for 7 days?
Days Mean daily flow
1
2
3
4
5
6
7        100
300
200
120
50
30
20

1. 820 day sec meter
2. 95 day sec meter
3. 200 day sec meter
4. 524 day sec meter
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Question 53 : When is the Hydrograph called as a unit hydrograph?
1. When 1cm of runoff is resulted from a rain fall
2. When 3cm of runoff is resulted from rainfall
3. When 1mm of runoff is resulted from rainfall
4. When 3mm of runoff is resulted from rainfall
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Question 54 : Which among the following reduces the capacity of reservoir and causes rapid erosion of turbine blades?
1. Contamination of highly corrosive material
2. Sedimentation effect
3. Submerged vegetation
4. Solid contamination
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Question 55 : A hydel plant is supplied from a reservoir of 5 X 106 m3 capacity at a head of 75m. Determine the number of electrical units produced (KWh) during the year if the load factor is 0.6 and overall efficiency of generation is 72%?
1. 441.45MWh
2. 300.22MWh
3. 235MWh
4. 182MWh
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Question 56 : Above which range should be the unit hydrographs be used?
1. Around 5000 sq km
2. Over 2500 sq km
3. Around 4000 sq km
4. Below 5000 sq km
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Question 57 : What is the basic requirement of hydroelectric power station?
1. Reservoir
2. Turbine
3. Power house
4. Penstock
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Question 58 : What type of Hydro plant is it if the Plant head is above 100m?
1. High head hydro-plant
2. Medium head hydro-plant
3. Low head hydro-plant
4. Base load hydro-plant
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Question 59 : Rocky area gives higher runoff than sandy area ___________
1. True
2. False
3.
4.
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Question 60 : What is the theoretical number of unit hydrographs for given basin?
1. 500
2. 2900
3. 36000
4. infinite
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