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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
64% (02:11) correct
36%
(02:17)
wrong
based on 272
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Auto engineer: Hopeful researchers claim that one day cars will be powered by hydrogen, which will be extracted from water using renewable energy sources. It takes a tremendous amount of energy to extract hydrogen from water, though. Considering the 700 million automobiles now in use, the goal of using renewable resources to obtain hydrogen to power them should be abandoned. We could generate enough energy to extract that amount of hydrogen with a massive deployment of nuclear power plants but those require nonrenewable resources and are unpopular in many areas.
The auto engineer's recommendation to abandon researchers' goal of powering cars with hydrogen extracted using renewable energy is based on which of the following assumptions?
A. researchers have misled the public into investing large amounts of money in the development of hydrogen cars.
B. The inefficiency of hydrogen cars makes refueling them costly and unpopular.
C. It would take many years for the 700 million automobiles currently in use to be replaced by hydrogen-powered vehicles.
D. The unpopularity of nuclear power plants makes it unlikely that sufficient nuclear power could be obtained to extract the hydrogen necessary for powering the number of automobiles currently in use.
E. No renewable energy sources could provide the power necessary to create sufficient fuel for the number of automobiles currently in use.
The auto engineer's recommendation to abandon researchers' goal of powering cars with hydrogen extracted using renewable energy is based on which of the following assumptions?
A. researchers have misled the public into investing large amounts of money in the development of hydrogen cars.
B. The inefficiency of hydrogen cars makes refueling them costly and unpopular.
C. It would take many years for the 700 million automobiles currently in use to be replaced by hydrogen-powered vehicles.
D. The unpopularity of nuclear power plants makes it unlikely that sufficient nuclear power could be obtained to extract the hydrogen necessary for powering the number of automobiles currently in use.
E. No renewable energy sources could provide the power necessary to create sufficient fuel for the number of automobiles currently in use.
06 Sep 2024, 02:53
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Since this is an assumption question we find the premise and conclusion.
Premise 1: Renewable Energy takes tremendous amount of energy
Premise 2: We have 700M automobiles in use
Conclusion: Renewable Energy should be abandoned
Using this, we can say that the argument is that:
renewable energy (for 700M) requires loads of energy => abandon it!
So we're looking for something that talks about too much energy being required for renewables..
A. researchers have misled the public into investing large amounts of money in the development of hydrogen cars.
No relevant. Doesn't address energy, or renewables aspect.
B. The inefficiency of hydrogen cars makes refueling them costly and unpopular.
Is efficiency = energy intensiveness? Hmm, not sure. Also cost and popularity is not really mentioned so why would it be an assumption? Assumptions is something that can break the argument when negated and this really doesn't affect the argument.
C. It would take many years for the 700 million automobiles currently in use to be replaced by hydrogen-powered vehicles.
Why is the number of years relevant? It's not.
D. The unpopularity of nuclear power plants makes it unlikely that sufficient nuclear power could be obtained to extract the hydrogen necessary for powering the number of automobiles currently in use.
Unpopularity or popularity is really not our concern... more so for non-renewables.. we don't even need to care about those to answer the question.
E. No renewable energy sources could provide the power necessary to create sufficient fuel for the number of automobiles currently in use.
Yes!! This mentions renewables and energy (power). Let's try negate this.
Renewable energy sources COULD provide the power/energy required to create sufficent fuel for the 700M automobiles mentioned.
That implies that the current argument which is based on the belief that: Renewables require too much energy, therefore, abandon, falls apart.
Therefore E.
Premise 1: Renewable Energy takes tremendous amount of energy
Premise 2: We have 700M automobiles in use
Conclusion: Renewable Energy should be abandoned
Using this, we can say that the argument is that:
renewable energy (for 700M) requires loads of energy => abandon it!
So we're looking for something that talks about too much energy being required for renewables..
A. researchers have misled the public into investing large amounts of money in the development of hydrogen cars.
No relevant. Doesn't address energy, or renewables aspect.
B. The inefficiency of hydrogen cars makes refueling them costly and unpopular.
Is efficiency = energy intensiveness? Hmm, not sure. Also cost and popularity is not really mentioned so why would it be an assumption? Assumptions is something that can break the argument when negated and this really doesn't affect the argument.
C. It would take many years for the 700 million automobiles currently in use to be replaced by hydrogen-powered vehicles.
Why is the number of years relevant? It's not.
D. The unpopularity of nuclear power plants makes it unlikely that sufficient nuclear power could be obtained to extract the hydrogen necessary for powering the number of automobiles currently in use.
Unpopularity or popularity is really not our concern... more so for non-renewables.. we don't even need to care about those to answer the question.
E. No renewable energy sources could provide the power necessary to create sufficient fuel for the number of automobiles currently in use.
Yes!! This mentions renewables and energy (power). Let's try negate this.
Renewable energy sources COULD provide the power/energy required to create sufficent fuel for the 700M automobiles mentioned.
That implies that the current argument which is based on the belief that: Renewables require too much energy, therefore, abandon, falls apart.
Therefore E.
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