Q 65. A mould has a downsprue whose length is 20 cm and the cross sectional area at the base of the downsprue is 1 c. The downsprue feeds a horizontal runner leading into the mould cavity of volume 1000 c. The time required to fill the mould cavity will be
(A) 4.05s
(B) 5.05s
(C) 6.05s
(D) 7.25s
Answer: (B)
Explanation:
