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Q: For good bonding in bricks uniform in size
  • A. all bricks need not be uniform in size
  • B. bats must be used in alternate course only
  • C. the vertical joints in alternate course should fall in plumb
  • D. cement mortar used must have surkhi as additive
Correct Answer: Option C - Rules for bonding– (i) The bricks should be uniform size and shape (ii) Use of brick bats should be minimum. (iii) The brick should be laid on a full bed mortar. (iv) The vertical joint, in the alternate courses should lie in the same perpend. (v) All the joints should be properly filled with mortar so that no cavity is left between.
C. Rules for bonding– (i) The bricks should be uniform size and shape (ii) Use of brick bats should be minimum. (iii) The brick should be laid on a full bed mortar. (iv) The vertical joint, in the alternate courses should lie in the same perpend. (v) All the joints should be properly filled with mortar so that no cavity is left between.

Explanations:

Rules for bonding– (i) The bricks should be uniform size and shape (ii) Use of brick bats should be minimum. (iii) The brick should be laid on a full bed mortar. (iv) The vertical joint, in the alternate courses should lie in the same perpend. (v) All the joints should be properly filled with mortar so that no cavity is left between.