LSAT 103 – Section 2 – Question 11

LSAT 103 - Section 2 - Question 11

September 1998

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT103 S2 Q11
+LR
Strengthen +Streng
Link Assumption +LinkA
A
96%
167
B
1%
154
C
1%
159
D
0%
152
E
2%
153
136
142
149
 +Medium 149.468 +SubsectionMedium

Commercial passenger airplanes can be equipped with a collision-avoidance radar system that provides pilots with information about the proximity of other airplanes. Because the system warns pilots to take evasive action when it indicates a possible collision, passengers are safer on airplanes equipped with the system than on comparable airplanes not so equipped, even though the system frequently warns pilots to evade phantom airplanes.

Summarize Argument
The author concludes passengers are safer on airplanes equipped with collision-avoidance radar. This is because the radar warns pilots when to take evasive action.

Notable Assumptions
The author assumes that pilots evading phantom planes doesn’t put passengers at more risk than usual. This means the author believes this happens rarely enough to not matter, or that swerving to avoid a phantom plane carries no safety risks.

A
Evasive action taken in response to the system’s warnings poses no risk to the passengers.
Evading phantom planes poses no safety risk to passengers. Thus, the radar is entirely beneficial.
B
Commercial passenger airplanes are in greater danger of colliding with other airplanes while on the ground than they are while in flight.
Irrelevant. The radar still helps them avoid collisions while in flight.
C
Commercial passenger airplanes are rarely involved in collisions while in flight.
Like (B), irrelevant. The radar still helps them avoid collisions while in flight.
D
A study by ground-based air traffic controllers found that 63 percent of the warnings by the system were invalid.
We need to know if those invalid warnings pose safety risks to passengers. This doesn’t tell us.
E
The collision-avoidance radar system is run by a computerized device on the plane that scans the sky and calculates the distances between planes.
This explains the mechanism behind the radar. We care about how the radar effects passenger safety.

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LSAT PrepTest 103 Explanations

Section 1 - Logical Reasoning

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Reading Comprehension

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