MCQOPTIONS
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| 1. |
A mould has downsprue whose length is 20 cm and the cross sectional area at the base of the downsprue is 1 cm |
| A. | 4.05 s |
| B. | 5.05 s |
| C. | 6.05 s |
| D. | 7.25 s |
| Answer» C. 6.05 s | |