PT151.S2.Q17 > Analytics

SECTION 1 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6

PASSAGE 2

Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14

PASSAGE 3

Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21

PASSAGE 4

Question 22 Question 23 Question 24 Question 25 Question 26 Question 27

SECTION 2 · lr

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22 Question 23 Question 24 Question 25 Question 26

SECTION 3 · lr

SECTION 4 · lr

Increasing an electrical load on a transmission line causes the line’s temperature to increase. Too high of a load causes the line to exceed its maximum operating temperature. However, the temperature is also affected with wind speed and direction. Strong winds cool the line more than light winds. Winds blowing across the line provide more cooling than do winds blowing parallel to the line.

When wind speed increases, the load a transmission line can carry without exceeding maximum operating temperature also increases.

At the same wind speed, perpendicular winds allow a transmission line to carry a greater load without exceeding maximum operating temperature compared to parallel winds.

This answer is unsupported. We don’t know how electrical utility companies usually operate. The stimulus only tells us about transmission line temperatures.

This answer is anti-supported. Based on the stimulus, the winds blowing at a right angle across the line would cool a line more than winds blowing parallel to the line.

This answer is strongly supported. Load capacity is correlated with the temperature of a transmission line. The more the wind cools the line, the greater load capacity the line has.

This answer is unsupported. We don’t know how much the surrounding air temperature could affect a transmission line’s temperature compared to the wind speed.

This answer is unsupported. Wind allows the line to carry a greater load without reaching its maximum temperature. Nothing in the stimulus indicates that the maximum temperature itself ever changes.

Question

68% of people who answer get this correct

This is a difficult question.

CURVE

Score of students with a 50% chance of getting this right

25% 145

153

75% 162

Question Stem Tags

Most strongly supported

Stimulus Tags

Causal reasoning

Popularity Avg. score

10%

153

154

68%

163

150

16%

158

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PrepTest 151 - Section 2 - Question 17

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