LSAT 109 – Section 3 – Question 05

LSAT 109 - Section 3 - Question 05

December 2000

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Question QuickView	Type	Tags	Answer Choices	Curve	Question Difficulty	Psg/Game/S Difficulty	Explanation
PT109 S3 Q05	+LR	Flaw or descriptive weakening +Flaw Causal Reasoning +CausR Analogy +An	A 5% 161 B 3% 160 C 2% 162 D 88% 167 E 1% 160	127 140 153	+Easier	148.18 +SubsectionMedium

The radiation absorbed by someone during an ordinary commercial airline flight is no more dangerous than that received during an ordinary dental X-ray. Since a dental X-ray does negligible harm to a person, we can conclude that the radiation absorbed by members of commercial airline flight crews will also do them negligible harm.

there may be many forms of dangerous radiation other than X-rays and the kinds of radiation absorbed by members of commercial airline flight crews

Other forms of dangerous radiation are irrelevant. The author is only concerned with the dangers of radiation from commercial airline flights and dental X-rays.

receiving a dental X-ray may mitigate other health risks, whereas flying does not

Whether X-rays or flights may mitigate other health risks is irrelevant. The argument only focuses on the dangers of radiation put out by flights and X-rays.

exposure to X-rays of higher intensity than dental X-rays may be harmful

Higher-intensity X-rays are irrelevant. The argument is only concerned with the radiation put out by dental X-rays and flights.

the longer and the more often one is exposed to radiation, the more radiation one absorbs and the more seriously one is harmed

The author fails to consider this. If members of commercial flight crews go on a lot of flights, the low levels of nearly harmless radiation they absorb on each flight could eventually add up and harm them.

flying at high altitude involves risks in addition to exposure to minor radiation

Risks posed by altitude are irrelevant. The author just argues that radiation from commercial flights poses little danger to commercial flight crews.

LSAT 109 – Section 3 – Question 05

LSAT 109 - Section 3 - Question 05

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LSAT PrepTest 109 Explanations

Section 1 - Logical Reasoning

Section 2 - Reading Comprehension

Section 3 - Logical Reasoning

Section 4 - Logical Reasoning

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