Question

In a sand casting process, a sprue of 10 mm base diameter and 250 mm height leads to a runner which fills a cubical mould cavity of 100 mm size.

The mould filling time is seconds is

• A. 7.54
• B. 5.78
• C. 2.8
• D. 8.41

Answer 1

The correct option is B 5.78

$\text{Moulding filling time =}\frac{\text{Volume of mould}}{\text{Flow rate}}$

$=\frac{100\times 100\times 100}{173942.13}\text{= 5.75 s}$