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Calculate the size of cylindrical riser (height and dia equal) to feed a steel slab casting 25x25x5 cm.(a) 10cm(b) 12.5cm(c) 14cm(d) Data insufficient |
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Answer» Correct answer is (b) 12.5cm The best I can explain: a = 25cm b = 5cm c = 25cm Modulus Mc = (a×b)/2(a+b) = Mc = (25×5)/2(25+5) = 125/60 = 2.0833cm The riser diameter D = 6 x Mc = 6×2.0833 = 12.5cm. |
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