Chemistry ยท General Awareness
Carbon and Fossil Fuels
1,756 Questions
Review fundamental concepts regarding carbon compounds, coal distillation, and fossil fuel formation. This segment covers the chemical properties and industrial applications of natural gas and crude oil. Practicing these questions will strengthen your chemistry foundation for general science sections.
Coal distillationPetroleum formationProperties of crude oilNatural gas applications
Carbon and Fossil Fuels Questions
What is the most important factor to consider when choosing a pottery kiln?
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The size of the kiln
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The type of fuel used by the kiln
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The temperature range of the kiln
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The cost of the kiln
C
Correct answer
Explanation
The most important factor to consider when choosing a pottery kiln is the temperature range of the kiln. The temperature range of the kiln must be high enough to melt the glaze that you are using.
Which of the following is NOT a type of alternative fuel for vehicles?
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Biodiesel
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Ethanol
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Natural gas
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Gasoline
D
Correct answer
Explanation
Gasoline is a fossil fuel, while biodiesel, ethanol, and natural gas are all alternative fuels that can be used to power vehicles.
Which type of crude oil is considered to be the most desirable?
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Light Sweet Crude
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Heavy Sour Crude
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Medium Sweet Crude
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Heavy Sweet Crude
A
Correct answer
Explanation
Light Sweet Crude is considered to be the most desirable due to its low sulfur content and high API gravity.
What is the name of the process used to convert heavy crude oil into lighter, more valuable products?
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Distillation
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Extraction
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Refinery
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Cracking
D
Correct answer
Explanation
Cracking is the process used to convert heavy crude oil into lighter, more valuable products.
What is the name of the process used to convert natural gas into liquid fuels?
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Distillation
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Extraction
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Refinery
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Gas-to-Liquids
D
Correct answer
Explanation
Gas-to-Liquids is the process used to convert natural gas into liquid fuels.
What is the name of the process used to convert coal into liquid fuels?
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Distillation
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Extraction
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Refinery
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Coal-to-Liquids
D
Correct answer
Explanation
Coal-to-Liquids is the process used to convert coal into liquid fuels.
Which type of oil spill is considered to be the most difficult to clean up?
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Light crude oil
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Heavy crude oil
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Refined petroleum products
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Bunker fuel
D
Correct answer
Explanation
Bunker fuel, a type of heavy oil used in ships, is considered to be the most difficult to clean up due to its high viscosity and persistence in the environment.
Which type of oil spill is considered to be the most persistent in the environment?
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Light crude oil
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Heavy crude oil
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Refined petroleum products
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Bunker fuel
D
Correct answer
Explanation
Bunker fuel, due to its high viscosity and complex composition, is considered to be the most persistent type of oil spill in the environment.
Which type of oil spill is considered to be the most volatile and flammable?
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Light crude oil
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Heavy crude oil
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Refined petroleum products
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Bunker fuel
A
Correct answer
Explanation
Light crude oil, due to its low viscosity and high content of volatile hydrocarbons, is considered to be the most volatile and flammable type of oil spill.
Which of the following is a type of biofuel that is produced from algae?
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Biodiesel
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Bioethanol
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Biogas
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Algae-based biofuel
D
Correct answer
Explanation
Algae-based biofuel is a type of biofuel that is produced from algae. Algae are a type of photosynthetic organism that can be grown in a variety of environments, including wastewater and saltwater. Algae-based biofuel is a renewable and sustainable alternative to fossil fuels.
Which of the following is a type of biofuel that is produced from wood or other plant biomass?
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Biodiesel
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Bioethanol
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Biomass
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Pyrolysis oil
C
Correct answer
Explanation
Biomass is a type of biofuel that is produced from wood or other plant biomass. It is a renewable and sustainable alternative to fossil fuels and can be used to generate electricity, heat, or transportation fuels.
Which of these is a type of fuel injection system commonly used in modern gasoline engines?
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Port Fuel Injection (PFI)
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Direct Fuel Injection (GDI)
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Throttle Body Injection (TBI)
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Multi-Point Fuel Injection (MPFI)
B
Correct answer
Explanation
GDI is a type of fuel injection system in which fuel is injected directly into the combustion chamber.
Which of these is a common type of fuel used in diesel engines?
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Gasoline
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Diesel Fuel
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Ethanol
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Natural Gas
B
Correct answer
Explanation
Diesel fuel is a common type of fuel used in diesel engines.
The efficiency of a marine gas turbine engine is primarily influenced by which of the following factors?
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Turbine Inlet Temperature
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Compressor Pressure Ratio
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Fuel-Air Ratio
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All of the Above
D
Correct answer
Explanation
The efficiency of a marine gas turbine engine is affected by a combination of factors, including turbine inlet temperature, compressor pressure ratio, and fuel-air ratio.
What is the primary fuel used in a tandoor?
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Wood
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Charcoal
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Gas
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Electricity
B
Correct answer
Explanation
Traditionally, tandoors are fueled by charcoal, which provides high heat and imparts a smoky flavor to the food.