Midterm Model Answer_Geothermal.pdf

Model Answer of Midterm Exam March 2024 Choose the correct answer (a, b, c, or d): 1. What is geothermal energy? a) Energy derived from the sun b) Energy derived from the Earth's internal heat c) Energy derived from water movement d) Energy derived from wind 2. Which country is...

Model Answer of Midterm Exam March 2024 Choose the correct answer (a, b, c, or d): 1. What is geothermal energy? a) Energy derived from the sun b) Energy derived from the Earth's internal heat c) Energy derived from water movement d) Energy derived from wind 2. Which country is known for the highest utilization of geothermal energy? a) United States b) Iceland c) Japan d) China 3. Geothermal energy is considered: a) Non-renewable b) Renewable c) Finite d) Non-sustainable 4. The first geothermal power plant was built in which country? a) United States b) Italy c) Japan d) Philippines 5. What is the primary use of geothermal energy? a) Generating electricity b) Heating buildings c) Cooling buildings d) Transportation fuel 6. What are the three main mechanisms of heat transfer? a) Conduction, convection, radiation b) Conduction, induction, radiation c) Convection, diffusion, radiation d) Induction, convection, conduction 7. Heat transfer by conduction occurs through: a) Fluids b) Solids c) Gases d) Plasma 8. Heat transfer by convection is most efficient in: a) Solids b) Liquids and gases c) Solids and gases d) Plasma and solids 9. Which heat transfer mechanism is primarily responsible for geothermal heat reaching the Earth’s surface? a) Conduction b) Convection c) Radiation d) Diffusion 10. Radiation heat transfer involves: a) Direct contact b) Fluid movement c) Electromagnetic waves d) Molecular vibration 11. Which type of rock is most commonly associated with geothermal reservoirs? 1|Page Model Answer of Geothermal Midterm exam  a) Igneous rocks b) Sedimentary rocks c) Metamorphic rocks d) Limestone 12. Geothermal systems are often located near: a) Coastal areas b) Plate tectonic boundaries c) Deserts d) Urban centers 13. What is a common indicator of a potential geothermal resource? a) High surface temperatures b) Presence of volcanic activity c) High seismic activity d) All of the above 14. Which geological feature often acts as a cap rock in geothermal systems? a) Sandstone b) Shale c) Granite d) Basalt 15. Permeability in geothermal reservoirs is important because it: a) Prevents heat loss b) Allows fluid movement c) Traps heat d) Increases rock strength 16. Which geophysical method is commonly used in geothermal exploration? a) Seismic reflection b) Magnetic surveys c) Gravity surveys d) All of the above 17. Geochemical analysis in geothermal exploration primarily examines: a) Soil composition b) Fluid chemistry c) Rock density d) Atmospheric gases 18. Which technique measures subsurface temperature gradients? a) Resistivity surveys b) Thermal gradient wells c) Seismic tomography d) Magnetic resonance imaging 19. Remote sensing in geothermal exploration can identify: a) Surface heat anomalies b) Subsurface rock formations c) Groundwater flow patterns d) All of the above 20. Exploratory drilling in geothermal exploration is used to: a) Confirm the presence of a geothermal reservoir b) Measure surface temperatures c) Determine atmospheric conditions d) Analyze soil types 21. The geothermal gradient measures: a) Temperature increase with depth b) Temperature decrease with depth c) Heat flow at the surface d) Thermal conductivity of rocks 22. A typical geothermal gradient in the Earth's crust is: 2|Page Model Answer of Geothermal Midterm exam  a) 5°C per km b) 25-30°C per km c) 50°C per km d) 100°C per km 23. High geothermal gradients are often found in: a) Stable continental interiors b) Oceanic ridges c) Subduction zones d) All of the above 24. Geothermal gradient data is used to: a) Estimate subsurface temperatures b) Predict volcanic activity c) Measure surface air temperatures d) Analyze atmospheric pressure 25. Which factor does NOT affect the geothermal gradient? a) Rock type b) Radioactive decay c) Surface water flow d) Depth of the ocean 26. Geothermal reservoir modeling aims to: a) Predict future oil prices b) Simulate subsurface conditions c) Measure atmospheric CO2 d) Analyze water table levels 27. A common software used for geothermal reservoir simulation is: a) COMSOL Multiphysics b) TOUGH2 c) ANSYS Fluent d) MATLAB 28. Reservoir permeability is crucial because it affects: a) Fluid flow within the reservoir b) Surface temperature c) Atmospheric pressure d) Rock density 29. In geothermal modeling, porosity refers to: a) The density of the rock b) The amount of void space in the rock c) The thermal conductivity of the rock d) The mineral composition of the rock 30. Thermal conductivity in geothermal systems is important because it: a) Measures the ability of a material to conduct heat b) Indicates the fluid flow rate c) Determines surface temperature d) Measures seismic activity 31. The most common type of geothermal power plant is: a) Flash steam plant b) Dry steam plant c) Binary cycle plant d) Combined cycle plant 32. Binary cycle power plants are particularly suited for: a) Low-temperature geothermal resources b) High-temperature geothermal resources c) Oil fields d) Coastal areas 33. Which component is NOT part of a geothermal power plant? 3|Page Model Answer of Geothermal Midterm exam  a) Turbine b) Heat exchanger c) Cooling tower d) Solar panels 34. In a flash steam plant, the geothermal fluid is: a) Vaporized directly to spin a turbine b) Used to heat a secondary fluid c) Injected back into the ground without use d) Condensed into liquid water 35. The primary advantage of geothermal power is: a) It is a non-renewable energy source b) It provides a stable and reliable power supply c) It has high operational costs d) It depends on weather conditions 36. Which of the following is a direct use of geothermal energy? a) Generating electricity b) Heating buildings c) Producing biofuels d) Wind power generation 37. Geothermal heat pumps are primarily used for: a) Cooling only b) Heating and cooling c) Generating electricity d) Water purification 38. Direct use of geothermal energy can be applied in: a) Industrial processes b) Greenhouse heating c) Aquaculture d) All of the above 39. Which industry can benefit from geothermal energy for drying processes? a) Textile b) Agriculture c) Electronics d) Automotive 40. The direct use of geothermal energy in spa and wellness centers is due to: a) High electricity generation b) Therapeutic properties of geothermal water c) Low installation costs d) High-temperature gradients 41. A significant environmental concern with geothermal energy is: a) High carbon emissions b) Water usage and disposal c) Air pollution d) Land usage for plants 42. Geothermal energy is considered to have low: a) Environmental impact b) Efficiency c) Initial costs d) Reliability 43. Induced seismicity is a potential issue with: a) Wind energy b) Solar energy c) Geothermal energy d) Hydroelectric energy 44. Geothermal plants can reduce greenhouse gas emissions compared to: 4|Page Model Answer of Geothermal Midterm exam  a) Coal-fired power plants b) Solar power plants c) Wind power plants d) Hydroelectric plants 45. A social benefit of geothermal energy includes: a) High noise pollution b) Job creation c) Visual pollution d) Decreased air quality 46. Monitoring geothermal systems is essential for: a) Ensuring optimal performance b) Increasing seismic activity c) Reducing energy output d) Increasing costs 47. Which parameter is commonly monitored in geothermal reservoirs? a) Water quality b) Rock density c) Temperature and pressure d) Air quality 48. Optimizing geothermal energy extraction involves: a) Decreasing fluid flow b) Maximizing heat extraction while maintaining reservoir sustainability c) Reducing temperatures d) Increasing surface area 49. Regular maintenance of geothermal plants helps to: a) Increase environmental impact b) Reduce plant efficiency c) Extend the life of equipment d) Increase operational costs 50. Advanced monitoring technologies in geothermal systems include: a) Satellite imaging b) Fiber optic sensors c) X-ray imaging d) Sonar detection 51. Which country has a significant number of geothermal power plants due to its volcanic activity? a) Germany b) New Zealand c) Egypt d) Canada 52. The Geysers, the world's largest geothermal field, is located in: a) Iceland b) Philippines c) United States d) Japan 53. A successful case study of geothermal district heating can be found in: a) Reykjavik, Iceland b) Sydney, Australia c) Cairo, Egypt d) London, UK 54. Enhanced geothermal systems (EGS) are designed to: a) Use natural reservoirs only b) Create artificial reservoirs through hydraulic stimulation c) Use solar panels to generate heat d) Increase surface water temperature 55. Geothermal energy development in Kenya is notable because of: 5|Page Model Answer of Geothermal Midterm exam  a) High solar irradiance b) Abundant geothermal resources in the Rift Valley c) Large oil reserves d) Coastal wind patterns 56. A promising future technology for geothermal energy is: a) Solar panels b) Enhanced geothermal systems (EGS) c) Coal gasification d) Biofuel generation 57. One potential future application of geothermal energy is: a) Space heating only b) Hydrogen production c) Reducing ocean acidification d) Creating artificial lakes 58. Deep geothermal drilling aims to access resources at depths greater than: a) 500 meters b) 1 kilometer c) 5 kilometers d) 10 kilometers 59. Geothermal energy's future role in energy systems is often seen as: a) Decreasing due to high costs b) Central to sustainable energy portfolios c) Limited to small-scale applications d) Only suitable for remote locations 60. The integration of geothermal energy with other renewable sources can lead to: a) Increased greenhouse gas emissions b) More reliable and stable energy grids c) Higher dependency on fossil fuels d) Increased land degradation My best wishes. 6|Page Model Answer of Geothermal Midterm exam