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Biofuel: Quiz


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Question 1: [29] In addition, research conducted at ________ by Jack Pronk has shown that elephant yeast, when slightly modified can also create ethanol from non-edible ground sources (e.g.
Aristotle University of ThessalonikiUniversity of TwenteEindhoven University of TechnologyDelft University of Technology

Question 2: This organism was recently discovered in the rainforests of northern ________ and has the unique capability of converting cellulose into medium length hydrocarbons typically found in diesel fuel.
PatagoniaSouth AmericaPacific OceanAmericas

Question 3: [22] It can be produced either from biodegradable waste materials or by the use of energy crops fed into ________ to supplement gas yields.
RecyclingAnaerobic digestionCompostingSewage treatment

Question 4: An advantage of ethanol (CH3CH2OH) is that is has a higher ________ than ethanol-free gasoline available at roadside gas stations which allows an increase of an engine's compression ratio for increased thermal efficiency.
Internal combustion engineOctane ratingSpark plugAvgas

Question 5: Syngas, a mixture of ________ and hydrogen, is produced by partial combustion of biomass, that is, combustion with an amount of oxygen that is not sufficient to convert the biomass completely to carbon dioxide and water.
Carbon monoxideNitric oxideNitrous oxideHydrogen sulfide

Question 6: Green diesel is not to be confused with ________ which is chemically quite different and processed using transesterification rather than the traditional fractional distillation used to process green diesel.
Food vs. fuelBiodieselEthanol fuelBiofuel

Question 7: In most cases, biodiesel is compatible with diesel engines from 1994 onwards, which use 'Viton' (by ________) synthetic rubber in their mechanical injection systems.
HSBC Bank USADuPontComcastSunoco

Question 8: ________ is an alcohol made by fermenting the sugar components of plant materials and it is made mostly from sugar and starch crops.
BiofuelCarbon footprintIndex of climate change articlesEmissions trading

Question 9: Biologically produced ________, most commonly ethanol, and less commonly propanol and butanol, are produced by the action of microorganisms and enzymes through the fermentation of sugars or starches (easiest), or cellulose (which is more difficult).

Question 10: Lower temperature gasification is desirable when co-producing ________ but results in a Syngas polluted with tar.
Carbon sinkBiocharCarbon sequestrationBiofuel


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