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WorksheetsBiomass Energy
Total questions: 20
Worksheet time: 10mins
When animals and plants are rotten in the absence of air, there produces a gas called
oxygen
carbondioxide
biogas
Methane
Which of the following is not a biomass resource?
Animal wastes
Forestry residue
Agricultural residue
Sunlight
The main product of a gasification process is the syngas. What are the main components of a syngas?
Carbon monoxide and hydrogen gas
Carbon dioxide and hydrogen gas
Carbon monoxide and hydrogen sulfide gas
Carbon dioxide and hydrogen sulfide gas
Pick out the odd one from fixed bed gasifier?
Underdraft gasifier
Downdraft gasifier
Updraft gasifier
Crossdraft gasifier
Which of the following best indicates photosynthesis?
Carbon dioxide + water → oxygen + glucose
6CO2 + 6H2O → C6H12O6 + 6O2 (in the presence of sunlight)
Carbon dioxide + water → glucose + oxygen (in the presence of sunlight)
Oxygen + glucose → carbon dioxide + water
What is biomass?
Organic materials from non-living organisms
Inorganic materials from living organisms
Organic materials from living organisms
Inorganic materials from non-living organisms
Which of the following is not used as food for humans?
Sugars
Glucose
Fats
Cellulosic matter
Microalgae also can be used for pyrolysis process.
True
False
What is the main product of carbonization?
Charcoal
Bio-oil
Alcohols
Gaseous products
Hot water or steam carrying geothermal energy often comes up to surface in
New Zealand
Ice land
Germany
Both a and b
The heating value is expressed in BTU/kg
True
False
Why does burning biomass not add to greenhouse gas emissions?
Because it is a clean source
Because it absorbs greenhouse gases to burn
Because it releases the same amount of greenhouses gas as burning fossil fuel does
Because it releases greenhouse gas that was captured and converted into other forms during its growth
What is anaerobic digestion?
Produces biogas by heating the biomass
Produces biogas using micro-organisms operating in anaerobic conditions
Produces biogas by subjecting the biomass to high pressures
Produces biogas using micro-organisms operating in aerobic conditions
Which of the following is an example of physio-chemical conversion technique to convert biomass into usable forms of energy?
Pyrolysis
Gasification
Anaerobic Digestion
Extraction with esterification
The most common way to release biomass is?
Bacterial Decay
Fermentation
Conversion
Burning
For a complete combustion process, the fuel/biomass react completely with the oxygen to produce?
Sulphur dioxide
Water vapour
Hydrochroric acid
None of the above
What are the positive impacts of the presence of water in bio-oil?
Leads to lower NOx emission
Lowers heating value of bio-oils
Increase in ignition delays
None of the above
Which of the following is a component of tar?
sodium
Benzene
Chlorine
Nickel
Which of the following is used to produce biogas from biomass?
Anaerobic treatment
Aerobic treatment
Fermentation
Pyrolysis
What are the two main products of anaerobic digestion?
Carbon monoxide and hydrogen
Methane and carbon dioxide
Methane and carbon monoxide
Hydrogen and carbon dioxide
