alleryStart learning →Per §5.4.4, in the standard Flow Test the flow table is dropped through 12.5 mm at the rate of:
A15 times in about 15 seconds
B5 times in about 5 seconds
C10 times in about 30 seconds
D3 times in about 15 seconds
Answer & Solution
Correct answer: A. 15 times in about 15 seconds
1. §5.4.4(c): 'Using the mechanism fitted in the table, raise and drop the table through a height 12.5 mm at the rate of 15 times in about 15 seconds.'
2. After the drops the spread is measured and averaged in six directions to the nearest 5 mm.
_Source: IGNOU ET-522 Block-2 Unit-5 Workability & Fresh Concrete-I, §5.4.4, p. 12_
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