Difficulty: Easy
Correct Answer: All the above
Explanation:
Introduction / Context:
In quantity surveying and public health engineering, item descriptions must fully define what is to be supplied and installed. For valves and small fittings, three descriptors avoid ambiguity: size (nominal bore), capacity or pressure rating, and material of construction. This ensures correct procurement, price comparability, and code compliance.
Given Data / Assumptions:
Concept / Approach:
Each fitting controls or conveys water and must mate with a specific pipe size. Pressure rating (e.g., PN class) guards against failure, and material choice affects corrosion resistance, potability, durability, and cost. Hence, all three attributes are routinely specified for these fixtures.
Step-by-Step Solution:
Verification / Alternative check:
Any SOR/BOQ template lists size, material, and rating for these items to avoid site disputes and substitutions.
Why Other Options Are Wrong:
Common Pitfalls:
Final Answer:
All the above.
Discussion & Comments