Mr. X was advised by an architect to make outer walls of his house with hollow bricks. The correct reason is that such walls

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Q: 95 (CDS-I/2011)
Mr. X was advised by an architect to make outer walls of his house with hollow bricks. The correct reason is that such walls

question_subject: 

Science

question_exam: 

CDS-I

stats: 

0,16,3,1,16,1,1

keywords: 

{'hollow bricks': [0, 0, 0, 1], 'outer walls': [0, 0, 0, 1], 'such walls': [0, 0, 0, 1], 'building': [1, 0, 2, 6], 'architect': [6, 0, 0, 1], 'house': [15, 3, 9, 18], 'moisture': [0, 0, 1, 0]}

The architect advised Mr. X to make the outer walls of his house with hollow bricks for the reason mentioned in option 2. This means that this particular type of wall construction helps to keep the inside of the house cooler in summer and warmer in winter.

Option 1 suggests that using hollow bricks for the outer walls makes the building stronger. However, the given information does not mention anything about the strength of the building.

Option 3 suggests that hollow bricks prevent seepage of moisture from outside. While it is possible that hollow bricks may have some water-resistant properties, this reason is not specified in the given information.

Option 4 suggests that hollow bricks protect the building from lightning. However, there is no mention of this in the given information.

Therefore, the correct reason for using hollow bricks for the outer walls of Mr. X`s house is option 2, which is to help keep the inside cooler in summer and warmer in winter.