- 2074 Asoj · 4 marks
Units: excavation, well steining, conductor, cornice
Short answer
Surface excavation up to 30 cm deep is measured in m², deeper bulk excavation in m³; brickwork in well steining in m³ by ring volume; lightning conductor as a set or number; cornice in running metre.
Write the units of measurement and payment for the following items of work: (i) Surface excavation (ii) Brick work in well steining (iii) Lightning conductor (iv) Cornice.
| Item | Unit of measurement | Unit of payment | Notes |
|---|---|---|---|
| (i) Surface excavation | m² (excavation not more than 30 cm deep, over 1.5 m wide and over 10 m² on plan; depth stated). Deeper bulk excavation is measured in m³ | m² | Length x width of the area, in the soil type and depth stated |
| (ii) Brick work in well steining | m³ | m³ | Mean circumference x thickness x height, or the ring volume pi x (D² - d²)/4 x height |
| (iii) Lightning conductor | set (number) for the complete installation; extra length of conductor strip in m | no. / set | Includes the air terminal, down conductor and earth pit |
| (iv) Cornice | m (running metre), profile and girth given | m | Measured along the centre line of the cornice |
✓ Answer checked by Claude Opus 5.5 (high effort)
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