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Set 22 --Q.28--Anti termite pasticides

Expert replies
by prachich1987 » Mon Dec 13, 2010 1:05 am
Regulations will not allow a pesticide that is toxic to humans to be used inside houses
unless the pesticide will dissipate completely from the air within eight hours after its
application. One test that pesticide manufacturers standardly use to determine how
quickly anti-termite pesticides dissipate involves spraying the pesticides on the walls of room-sized plywood boxes and then timing its dissipation.

Which of the following would it be most useful to know in order to evaluate whether a
dissipation time of just under eight hours on the manufacturers’ test indicates that an antitermite
pesticide that is toxic to humans obeys regulations for use in houses?

A. Whether anti-termite pesticides dissipate more slowly in furnished rooms than in
plywood boxes
B. Whether people who apply anti-termite pesticide standardly wear protective
equipment that prevents them from being exposed to the pesticide
C. Whether people whose house is being treated with anti-termite pesticide generally
know that they should remain out of their house during the hours immediately
after the pesticide’s application
D. Whether there are anti-termite pesticides that are toxic to humans that, when
subjected to the manufacturers’ test, dissipate completely from the air in the boxes
in well under eight hours
E. Whether anti-termite pesticides that are not toxic to humans tend to take longer to
dissipate than those that are toxic
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Source: — Critical Reasoning |

by winner's attitude » Mon Dec 13, 2010 1:24 am
[spoiler] A[spoiler][/spoiler]
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by prachich1987 » Mon Dec 13, 2010 1:42 am
winner's attitude wrote:[spoiler] A[spoiler][/spoiler]
The answer is right.
Can you plz advise why D is wrong but?
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by Deepthi Subbu » Tue Dec 28, 2010 10:24 pm
prachich1987 wrote:
winner's attitude wrote:[spoiler] A[spoiler][/spoiler]
The answer is right.
Can you plz advise why D is wrong but?
Premise : Regulations will not allow a pesticide that is toxic to humans to be used inside houses
unless the pesticide will dissipate completely from the air within eight hours after its
application.

Premise : One test that pesticide manufacturers standardly use to determine how
quickly anti-termite pesticides dissipate involves spraying the pesticides on the walls of room-sized plywood boxes and then timing its dissipation

As you read through the passage there's a shift change .

If you carefully notice , the flaw in the argument happens when the manufacturers determine the action of the pesticide on plywood boxes . What if the one who will be regulating this anti-pesticide tests it on something else say brick walls and suppose the anti-pesticide takes more time to dissipate . This case may clearly dismiss the pesticide .
Answer A clearly describes this possibility.

A - Whether anti-termite pesticides dissipate more slowly in furnished rooms than in
plywood boxes .

There are 2 cases -

Yes , the anti-termite pesticides dissipate more slowly in furnished rooms than in
plywood boxes - Hence obeys the regulation .

No , anti-termite pesticides dissipate more slowly in furnished rooms than in
plywood boxes - Does not go by the regulation .

Hence , at times looking out for flaws in ' evaluate an argument ' pattern may help .

Answer D is incorrect because , it completely ignores to address the flaw and it also restates the premise .

Hope it helps.
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