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Q: What should be the recommended size of frog provided in the standard brick?
  • A. 9 x 4 x 0.8 cm
  • B. 9 x 4x 1 cm
  • C. 10 x 3 x 1 cm
  • D. 10 x 4 x 1 cm
Correct Answer: Option D - The most important purpose of frog in a brick is to form keyed joint between brick and mortar and therefore the brick are laid with frogs on top. Frog is not provided in 4 cm high bricks and extruded brick. • The size of frog should be 10 × 4 × 1 cm.
D. The most important purpose of frog in a brick is to form keyed joint between brick and mortar and therefore the brick are laid with frogs on top. Frog is not provided in 4 cm high bricks and extruded brick. • The size of frog should be 10 × 4 × 1 cm.

Explanations:

The most important purpose of frog in a brick is to form keyed joint between brick and mortar and therefore the brick are laid with frogs on top. Frog is not provided in 4 cm high bricks and extruded brick. • The size of frog should be 10 × 4 × 1 cm.