Question 41 : Which device uses the float which has two motions?
1. High level reservoir wave machine
2. Dolphin type wave generator
3. Hydraulic accumulator
4. Float wave power conversion device
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Question 42 : Which among the following is problem caused by geothermal plant?
1. Land usage
2. Noise pollution
3. Global warming
4. Greenhouse effect
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Question 43 : On what is two-pool tidal system is less dependent?
1. Barrage
2. Tidal fluctuation
3. Reservoir
4. Gravitational force
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Question 44 : Difference between water height at high tide and water height at low tide is called _______
1. Tidal Variation
2. Tidal volume
3. Tidal Range
4. Tidal Current
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Question 45 : What happens if the turbine generators are smaller and operate much longer?
1. Resulting work is reduced
2. High power generation
3. Less power loss
4. Less sound is created
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Question 46 : How is water trapped from coastal waters?
1. By building canals
2. By building dams
3. By digging wells
4. By storing in tanks
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Question 47 : Which is the environmental problem caused by geothermal energy?
1. Landslide
2. Loose soil
3. Land surface subsidence
4. Loss of fertility of land
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Question 48 : What is range of temperature at Hydro thermal reservoirs?
1. 350^oC
2. 210^oC
3. 50^oC
4. 1900^oC
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Question 49 : What is the range of range of the water, which comes from degrees of salinity?
1. 300 - 8000 ppm
2. 4500 - 50,000 ppm
3. 70000 - 85000 ppm
4. 3000 - 280,000 ppm
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Question 50 : What types of tides occur when there is so much interference with continents?
1. Diurnal tide
2. Neap tide
3. Spring tide
4. Ebb tide
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