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Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 18 (Q.No. 3)
UPSC Civil Service Exam Questions
3.
The most important purpose of frog in a brick is to :
emboss manufacturer's name
reduce the weight of brick
form keyed joint between brick and mortar
improve insulation by providing 'hollows'.
Answer: Option
Explanation:
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