search
arrow-left Previous
Next arrow-right
Q: In estimation of quantity of plastering work, quantity of deduction for openings allowed for 2m2 is:
  • A. No deduction is made for ends of beams
  • B. Deduction is allowed for both faces of openings
  • C. Deduction is allowed for both face of the wall
  • D. Deduction is allowed for one face of the wall
Correct Answer: Option D - Plastering usually 12 mm thick is calculated in square meter for wall the measurement are taken for whole face of the wall for both side at solid, and deduction for opening are made in following manner: (1) No deduction is made for the end of beams, posts, rafters etc. (2) For small opening up to 0.5 square meter no deduction is made and at the time no additions are made for jambs, soffits and sills of these opening. (3) For opening exceeding 0.5 square meter but not exceeding 3 square meter deduction is made for one side and other face is allowed for jambs soffits and sills which are not taken into account separately. (4) For opening above 3 square meter deduction is made for both faces of the opening and the jambs, soffits and sills are into account and added.
D. Plastering usually 12 mm thick is calculated in square meter for wall the measurement are taken for whole face of the wall for both side at solid, and deduction for opening are made in following manner: (1) No deduction is made for the end of beams, posts, rafters etc. (2) For small opening up to 0.5 square meter no deduction is made and at the time no additions are made for jambs, soffits and sills of these opening. (3) For opening exceeding 0.5 square meter but not exceeding 3 square meter deduction is made for one side and other face is allowed for jambs soffits and sills which are not taken into account separately. (4) For opening above 3 square meter deduction is made for both faces of the opening and the jambs, soffits and sills are into account and added.

Explanations:

Plastering usually 12 mm thick is calculated in square meter for wall the measurement are taken for whole face of the wall for both side at solid, and deduction for opening are made in following manner: (1) No deduction is made for the end of beams, posts, rafters etc. (2) For small opening up to 0.5 square meter no deduction is made and at the time no additions are made for jambs, soffits and sills of these opening. (3) For opening exceeding 0.5 square meter but not exceeding 3 square meter deduction is made for one side and other face is allowed for jambs soffits and sills which are not taken into account separately. (4) For opening above 3 square meter deduction is made for both faces of the opening and the jambs, soffits and sills are into account and added.