Per §2.3.2(iii), in the Aggregate Impact Value test the standard hamme…

Question

Per §2.3.2(iii), in the Aggregate Impact Value test the standard hammer falls from a height of approximately:

Accepted Answer

D. {'text': 'About 380 mm', 'label': 'D'}

1. §2.3.2(iii): the sample (passing 12.5 mm, retained on 10 mm) is 'subjected to 15 blows of a standard hammer falling from height of 380 mm.'
2. The sample is then sieved through 2.36 mm and AIV = (B/A) × 100.
_Source: IGNOU ET-522 Block-1 Unit-2 Aggregates, §2.3.2(iii), p. 37_

Answer

{'text': 'About 150 mm', 'label': 'A'}

Answer

{'text': 'About 250 mm', 'label': 'B'}

Answer

{'text': 'About 600 mm', 'label': 'C'}