Question 31 : What is hot molten rock called?
1. Lava
2. Magma
3. Igneous rocks
4. Volcano
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Question 32 : Which gas is always present in geothermal fields?
1. CO₂
2. H₂S
3. N₂O
4. H₂O
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Question 33 : Which of the following has the lowest efficiency?
1. Solar energy
2. Wind energy
3. Wave energy
4. OTEC
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Question 34 : One Terra-watt is equal ______________
1. 1 trillion-watts
2. 100 trillion-watts
3. 5 trillion-watts
4. 10 trillion-watts
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Question 35 : How the steam after passing turbine is cooled down in the geo thermal energy plant?
1. Water cooled
2. Cooling towers
3. Air cooled (Blowers/ air vents)
4. Chemically cooled
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Question 36 : The Claude cycle is also called as __________
1. Open cycle
2. Anderson cycle
3. Closed cycle
4. Otto cycle
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Question 37 : What is the movement of water generated by or associated with the change in mean sea level called?
1. Tidal Variation
2. Tidal volume
3. Tidal Range
4. Tidal Current
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Question 38 : Earth's outer layer rock is called as __________
1. Mantle
2. Crust
3. Outer core
4. Asthenosphere
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Question 39 : Kinetic energy that results from the oscillation of water is called ________
1. Wave energy
2. Tidal energy
3. Ocean thermal energy
4. Hydro energy
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Question 40 : Which among the following systems is used for water in high temperature range?
1. Vapor dominated systems
2. Flashed steam system
3. Liquid dominated total flow concept
4. Petro thermal systems
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