Per §5.4.4 (Flow Test), the flow percentage is computed from the sprea…

Question

Per §5.4.4 (Flow Test), the flow percentage is computed from the spread diameter (in cm) of the concrete pat by the formula:

Accepted Answer

D. {'text': 'Flow% = (Spread diameter in cm - 25) divided by 25, all multiplied by 100', 'label': 'D'}

1. §5.4.4: 'Flow (%) = ((Spread Diameter in cm - 25) / 25) × 100.'
2. The pat is produced by dropping the flow table through 12.5 mm at 15 drops in 15 seconds; the spread is measured in six directions to the nearest 5 mm and averaged. Flow values range 0 to 150%.
_Source: IGNOU ET-522 Block-2 Unit-5 Workability & Fresh Concrete-I, §5.4.4, p. 12_

Answer

{'text': 'Flow% = (Spread diameter in cm + 25) divided by 25, all multiplied by 100', 'label': 'A'}

Answer

{'text': 'Flow% = (Spread diameter in cm) multiplied by 100 only', 'label': 'B'}

Answer

{'text': 'Flow% = 25 divided by (Spread diameter in cm), all multiplied by 100', 'label': 'C'}