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Q: Which of the following is the main reason to provide frog in the bricks ?
  • A. Print manufacture's name
  • B. Form keyed joint between brick and mortar
  • C. Improve thermal insulation
  • D. Reduce the weight of brick
Correct Answer: Option B - The Depression made at the top of the brick is called FROG. • FROG serves as a key to the mortar to bond bricks together.
B. The Depression made at the top of the brick is called FROG. • FROG serves as a key to the mortar to bond bricks together.

Explanations:

The Depression made at the top of the brick is called FROG. • FROG serves as a key to the mortar to bond bricks together.