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A Nodular iron slab casting whose dimensions are 20 x 20 x 5 cm3 with top cylindrical riser (Height and diameter are equal) is poured horizontally into the mould. Then size of cylindrical riser is (D). (Assume freezing ratio is 1.3):
  • a)
    6.38 cm
  • b)
    12.69 cm
  • c)
    9.55 cm
  • d)
    14.23 cm
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A Nodular iron slab casting whose dimensions are 20 x 20 x 5 cm3 with...
Nodular iron slab dimension is 20 x 20 x 5 cm3. Top cylindrical riser height and diameters are equal, freezing ratio = 1.3
A = surface area , V = volume
Surface area of casting
= 2(20 x 20 + 20 x 20 + 20 x 5)
= 1300 cm3
Volume of casting = 20 x 20 x 5
= 2000cm3
Surface area of the riser
= 3.926 D2
D = 6.38 cm
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A Nodular iron slab casting whose dimensions are 20 x 20 x 5 cm3 with top cylindrical riser (Height and diameter are equal) is poured horizontally into the mould. Then size of cylindrical riser is (D). (Assume freezing ratio is 1.3):a) 6.38 cmb) 12.69 cmc) 9.55 cmd) 14.23 cmCorrect answer is option 'A'. Can you explain this answer?
Question Description
A Nodular iron slab casting whose dimensions are 20 x 20 x 5 cm3 with top cylindrical riser (Height and diameter are equal) is poured horizontally into the mould. Then size of cylindrical riser is (D). (Assume freezing ratio is 1.3):a) 6.38 cmb) 12.69 cmc) 9.55 cmd) 14.23 cmCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A Nodular iron slab casting whose dimensions are 20 x 20 x 5 cm3 with top cylindrical riser (Height and diameter are equal) is poured horizontally into the mould. Then size of cylindrical riser is (D). (Assume freezing ratio is 1.3):a) 6.38 cmb) 12.69 cmc) 9.55 cmd) 14.23 cmCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A Nodular iron slab casting whose dimensions are 20 x 20 x 5 cm3 with top cylindrical riser (Height and diameter are equal) is poured horizontally into the mould. Then size of cylindrical riser is (D). (Assume freezing ratio is 1.3):a) 6.38 cmb) 12.69 cmc) 9.55 cmd) 14.23 cmCorrect answer is option 'A'. Can you explain this answer?.
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