Economic Geology / Mining / Petroleum Geology – MCQs August 27, 2025August 27, 2025 by u930973931_answers 50 Score: 0 Attempted: 0/50 Subscribe 1. Which of the following is the primary ore of Aluminum? (A) Bauxite (B) Hematite (C) Galena (D) Magnetite 2. The largest producer of natural gas in the world is: (A) Russia (B) Saudi Arabia (C) USA (D) Qatar 3. The main mineral of lead is: (A) Galena (B) Chalcopyrite (C) Cassiterite (D) Hematite 4. Which one of the following is a placer deposit? (A) Gold (B) Magnetite (C) Bauxite (D) Gypsum 5. Petroleum is primarily composed of: (A) Hydrocarbons (B) Silicates (C) Sulfates (D) Carbonates 6. Which method is commonly used for coal mining? (A) Open-pit mining (B) Placer mining (C) Solution mining (D) Hydraulic mining 7. The mineral Cassiterite is the chief ore of: (A) Tin (B) Lead (C) Zinc (D) Copper 8. Which of the following is considered a renewable source of energy? (A) Petroleum (B) Natural Gas (C) Solar Energy (D) Coal 9. The process of separating minerals from gangue is called: (A) Smelting (B) Concentration (C) Refining (D) Amalgamation 10. Which mineral is used as a lubricant? (A) Talc (B) Quartz (C) Feldspar (D) Calcite 11. In petroleum geology, the porous rock that stores oil is called: (A) Source rock (B) Reservoir rock (C) Cap rock (D) Host rock 12. The largest coal reserves in the world are found in: (A) USA (B) China (C) India (D) Russia 13. Which mineral is known as fool’s gold? (A) Pyrite (B) Chalcopyrite (C) Magnetite (D) Hematite 14. Chromite is an ore of: (A) Chromium (B) Nickel (C) Zinc (D) Cobalt 15. Which process forms petroleum in nature? (A) Photosynthesis (B) Diagenesis of organic matter (C) Weathering of rocks (D) Crystallization 16. The method of extracting soluble minerals using water is called: (A) Open-cast mining (B) Solution mining (C) Strip mining (D) Underground mining 17. The mineral gypsum is used in the manufacture of: (A) Cement (B) Glass (C) Fertilizers (D) Paints 18. Which mineral is the main source of Uranium? (A) Pitchblende (B) Hematite (C) Chalcopyrite (D) Galena 19. Oil traps are classified into: (A) Structural and Stratigraphic (B) Igneous and Sedimentary (C) Mechanical and Chemical (D) Primary and Secondary 20. Kimberlite pipes are associated with: (A) Diamonds (B) Gold (C) Copper (D) Platinum 21. Which gas is often found with petroleum deposits? (A) Carbon dioxide (B) Methane (C) Sulfur dioxide (D) Nitrogen 22. The principal ore of Copper is: (A) Chalcopyrite (B) Galena (C) Hematite (D) Sphalerite 23. Which country is the largest producer of crude oil? (A) USA (B) Russia (C) Saudi Arabia (D) Iran 24. Banded Iron Formations (BIFs) are the major source of: (A) Iron (B) Manganese (C) Bauxite (D) Copper 25. The Mohs hardness of Diamond is: (A) 9 (B) 10 (C) 8 (D) 7 26. The process of heating ores in the absence of air is: (A) Calcination (B) Roasting (C) Smelting (D) Amalgamation 27. Petroleum in Pakistan is mainly found in: (A) Potwar Basin (B) Chagai Hills (C) Thar Desert (D) Salt Range 28. Which mineral is used for nuclear fuel? (A) Uraninite (B) Magnetite (C) Galena (D) Chalcopyrite 29. Laterite is a source of: (A) Aluminum (B) Iron (C) Nickel (D) All of these 30. Which technique is used for locating petroleum reserves? (A) Geochemical analysis (B) Seismic survey (C) Gravity survey (D) Remote sensing 31. Which type of coal has the highest calorific value? (A) Peat (B) Lignite (C) Bituminous (D) Anthracite 32. The mineral sphalerite is an ore of: (A) Zinc (B) Lead (C) Tin (D) Silver 33. The largest oil field in the world is: (A) Ghawar, Saudi Arabia (B) Burgan, Kuwait (C) Rumaila, Iraq (D) Kashagan, Kazakhstan 34. Which of the following is a metamorphic ore deposit? (A) Graphite (B) Gypsum (C) Bauxite (D) Halite 35. Natural gas is mainly composed of: (A) Methane (B) Propane (C) Butane (D) Ethane 36. The largest producer of bauxite in the world is: (A) Australia (B) Brazil (C) India (D) China 37. Which of the following is a ferrous mineral? (A) Magnetite (B) Bauxite (C) Galena (D) Sphalerite 38. The Saline water is converted into fresh water by: (A) Smelting (B) Desalination (C) Refining (D) Roasting 39. Oil shale is rich in: (A) Kerogen (B) Methane (C) Sulfides (D) Carbonates 40. Which of the following is NOT a fossil fuel? (A) Coal (B) Petroleum (C) Natural Gas (D) Uranium 41. Which mineral is used in making pencils? (A) Graphite (B) Mica (C) Talc (D) Feldspar 42. The deepest mines in the world are located in: (A) South Africa (B) Russia (C) Canada (D) Australia 43. Which type of mineral deposit is formed from cooling of magma? (A) Magmatic deposits (B) Placer deposits (C) Residual deposits (D) Evaporite deposits 44. Rock Salt is mainly composed of: (A) NaCl (B) KCl (C) CaSO₄ (D) MgCO₃ 45. The process of petroleum refining is carried out by: (A) Fractional distillation (B) Crystallization (C) Calcination (D) Sublimation 46. Which element is commonly associated with coal mining hazards? (A) Methane (B) Carbon dioxide (C) Sulfur dioxide (D) Oxygen 47. Which of the following is an example of an evaporite mineral? (A) Gypsum (B) Quartz (C) Feldspar (D) Magnetite 48. Which mineral is used in the manufacture of glass? (A) Quartz (B) Hematite (C) Magnetite (D) Galena 49. The process of extracting metals from ores by electrolysis is called: (A) Electro-metallurgy (B) Pyro-metallurgy (C) Hydro-metallurgy (D) Bio-leaching 50. Which is the first oil well drilled in Pakistan? (A) Khaur (B) Dhulian (C) Balkassar (D) Toot Engineering Geology – MCQs Environmental Geology – MCQs Geochemistry – MCQs Geochronology – MCQs Geomorphology / Surface Processes – MCQs Geophysics – MCQs Hydrogeology – MCQs Igneous Petrology – MCQs Metamorphic Petrology – MCQs Sedimentology – MCQs Stratigraphy – MCQs Structural Geology – MCQs Volcanology – MCQs Natural Hazards / Geological Hazards – MCQs Economic Geology / Mining / Petroleum Geology – MCQs Oceanography / Marine Geology – MCQs Palaeontology – MCQs Planetary Science (including Planetary Geology) – MCQs Remote Sensing – MCQs Natural Resources / Unconventional Energy – MCQs