- 2082 Baisakh · 3+4+3+3 marks
Single room: excavation, brickwork, plaster, shutter
Short answer
Assuming room 4.0×3.0 m clear, centre-line 14.92 m. Earthwork in 0.9×1.0 m trench = 13.43 m³. Brickwork to plinth: two footing steps (0.69 and 0.46 m wide ×0.15 m) plus 0.95 m wall, total 5.83 m³. Plastering (walls+ceiling): 49.02 m². Shutters: door 1.60 m², windows 2×1.00 m², total 3.60 m².
From the attached plan and section (Figure 2) of single room building, estimate the quantities. i) Earthwork in excavation ii) Brickwork in 1:6 c/s mortar up to plinth level iii) 12.5 mm thick plastering in room and ceiling iv) Door window shutter (assume door window frame is 0.1 m × 0.1 m) [Figure 2 not included in the scanned paper]
No figure is available, so a single room is assumed: 4.0 m × 3.0 m clear, walls 230 mm, centre-line length = 2(4.0 + 3.0 + 2 × 0.23) = 14.92 m.
Assumed data
- Trench 0.90 m wide × 1.00 m deep; PCC 200 mm; two brick footing steps (0.69 m and 0.46 m wide, 150 mm high each); plinth 0.45 m above GL.
- Wall (0.23 m) from top of last step to plinth top = 1.00 − 0.20 − 0.30 + 0.45 = 0.95 m.
- Ceiling height 3.0 m; one door 1.0 × 2.1 m, two windows 1.2 × 1.2 m.
i) Earthwork in excavation
| Item | No. | L (m) | B (m) | H/D (m) | Qty (m³) |
|---|---|---|---|---|---|
| Trench, all walls (centre-line) | 1 | 14.920 | 0.900 | 1.000 | 13.428 |
| Total | 13.428 |
ii) Brickwork in 1:6 c/s mortar up to plinth level
| Item | No. | L (m) | B (m) | H/D (m) | Qty (m³) |
|---|---|---|---|---|---|
| Brick footing step 1 (0.69 m wide) | 1 | 14.920 | 0.690 | 0.150 | 1.544 |
| Brick footing step 2 (0.46 m wide) | 1 | 14.920 | 0.460 | 0.150 | 1.029 |
| Wall up to plinth | 1 | 14.920 | 0.230 | 0.950 | 3.260 |
| Total | 5.834 |
iii) 12.5 mm plastering in room and ceiling
| Item | No. | L (m) | B (m) | H/D (m) | Qty (m²) |
|---|---|---|---|---|---|
| Inside walls, 2(4.0+3.0) × 3.0 | 1 | 14.000 | 3.000 | – | 42.000 |
| Deduct door | -1 | 1.000 | 2.100 | – | -2.100 |
| Deduct windows | -2 | 1.200 | 1.200 | – | -2.880 |
| Ceiling 4.0 × 3.0 | 1 | 4.000 | 3.000 | – | 12.000 |
| Total | 49.020 |
iv) Door and window shutters
Frame 0.1 m × 0.1 m, so the shutter is smaller than the opening by one frame width at each vertical side and the head.
- Door shutter = (1.0 − 2 × 0.1) × (2.1 − 0.1) = 0.80 × 2.00 = 1.60 m²
- Window shutters = 2 × (1.2 − 0.2) × (1.2 − 0.2) = 2 × 1.00 = 2.00 m²
- Total shutter area = 3.60 m²
Answer: Excavation 13.43 m³; brickwork to plinth 5.83 m³; plastering 49.02 m²; shutters 3.60 m² (assumed dimensions).
✓ Answer checked by Claude Opus 5.5 (high effort)
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