BESC chap 20 Questions with Correct Answers
Which of the following is true regarding fuel cell technology - Answer-They are only about 40-45% efficient
A ____ is used to remove hydrogen from various fuels to be used in fuel cells. - Answer-Reformer
Which of the following is not normally co...
BESC chap 20 Questions with
Correct Answers
Which of the following is true regarding fuel cell technology - Answer-They are only
about 40-45% efficient
A ____ is used to remove hydrogen from various fuels to be used in fuel cells. - Answer-
Reformer
Which of the following is not normally considered a biomass fuel? - Answer-All of these
are biomass fuels
(Wood, Bark, Waste wood chips, Branches)
In the United States and Canada, the most common problem with using wood as a
major heat source is - Answer-None of these
Very few living trees are cut down for fuel in _____ because twigs, branches and crop
residues are used for fuel. However, in ______ the forests are nearly gone and even
fruit trees cut for fuel. - Answer-Pakistan; Haiti
_____ is being used to produce ethanol and lessen the dependence on oil. - Answer-All
of the above are being grown for ethanol production (Palm oil, corn, miscanthus grass,
soybeans)
Jatropha is a good source for biodiesel because - Answer-It's nuts have a high energy
content
Manure or dung makes a good fuel except that it is - Answer-Needed to rebuild the soil
Burning methane form dung - Answer-All of these
Since the 1920s, hydropower production has - Answer-Risen, but not as fast as fossil
fuel use
Siltation and decreased water quality are especially significant problems with - Answer-
Huge dams on major rivers
Low-head hydropower involves ____ dams on ___ rivers - Answer-small; minor
Some highly efficient turbines can be submerged directly in a river and require only
______ to operate - Answer-Run-of-the-river flow
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