PrepTest 157, Section 3, Question 7
News report: Some recently invented television screens are(83 more words not shown)
Which one of the following(11 more words not shown)
- AThe technology used(15 more words not shown)
- BThere is a(19 more words not shown)
- CIn a television(14 more words not shown)
- DTelevision sets that(19 more words not shown)
- ETelevision sets with(13 more words not shown)
Reading the argument
Keep adding tiles, and the screen keeps its brightness. That's what this technology lets us do.
Each tile is a small screen, bright enough on its own. Joining more tiles makes the overall screen larger without making it dimmer or making the television thicker. So imagine expanding the same design from a modest screen to an enormous one: the report says we keep the brightness and the slim set.
What we’re looking for
That's different from a noncompound screen in a television of the same thickness. There, increasing the screen's size makes it dimmer. We don't need outside knowledge of television design to follow the contrast. For the inference question, stay with the reported capability: a very large, bright screen in a set only a few inches thick. Don't turn a technical advantage into a claim that the new sets are better in every way.
Working the answers
- A
Working well for large screens doesn't make the technology unsuitable for small ones. Nothing says we must join a huge number of tiles. A thirty-inch screen could use the same approach as an eighty-inch screen. The report supplies a way to increase size without losing brightness, not a minimum size below which the technology fails.
- B
We know what can be built, not how many people want to buy it. A technically impressive television could have little demand, perhaps because of its price or because buyers don't want a huge screen. No consumer preferences are supplied.
- C
Watch which dimension changes. The report discusses increasing screen size while keeping a noncompound set at a given thickness. It doesn't describe what happens when the television itself gets thicker. We cannot turn a relationship between screen size and brightness into a different relationship between thickness and brightness.
- DCorrect
All three features fit together: the set is only a few inches thick, each tile is bright, and adding tiles can make the screen very large without losing brightness or adding thickness. This stays within what the report tells us the technology can do. We don't have to assume that such giant sets have already been sold.
- E
No disadvantages at all? We haven't been told about cost, durability, or electricity use. Perhaps these televisions cost more, break more easily, or need more power. Those are possibilities, not facts we need to establish. The report's advantages don't rule out every potential drawback.
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