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A cast Steel slab of dimension 30 × 20 × 5 cm is poured horizontally using a side riser. The riser is cylindrical in shape with diameter and height, both equal to D. The freezing ratio of the mould is
[PI 2005]
  • a)
    8D/75
  • b)
    4D/75
  • c)
    75/8D
  • d)
    75/4D
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A cast Steel slab of dimension 30 × 20 × 5 cm is poured ho...
 
Case steel slab = 30 × 20 × 5 cm3

Modulus of Casting
Mc=V/A=30×20×5/((2×30×20)+(2×30×5)+(2×20×5))
=30/17
Mc=1.76

Modulus of Riser
Mr=V/A= (π/4)D3/(2×(π/4)D2+πD2)
= (D/4)/(6/4) = D/6
Freezing ratio =Mr/Mc
F.R=D/6×17/30=17D/180
=0.094D≈8D/75
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A cast Steel slab of dimension 30 × 20 × 5 cm is poured horizontally using a side riser. The riser is cylindrical in shape with diameter and height, both equal to D. The freezing ratio of the mould is[PI 2005]a)8D/75b)4D/75c)75/8Dd)75/4DCorrect answer is option 'A'. Can you explain this answer?
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A cast Steel slab of dimension 30 × 20 × 5 cm is poured horizontally using a side riser. The riser is cylindrical in shape with diameter and height, both equal to D. The freezing ratio of the mould is[PI 2005]a)8D/75b)4D/75c)75/8Dd)75/4DCorrect 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 cast Steel slab of dimension 30 × 20 × 5 cm is poured horizontally using a side riser. The riser is cylindrical in shape with diameter and height, both equal to D. The freezing ratio of the mould is[PI 2005]a)8D/75b)4D/75c)75/8Dd)75/4DCorrect 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 cast Steel slab of dimension 30 × 20 × 5 cm is poured horizontally using a side riser. The riser is cylindrical in shape with diameter and height, both equal to D. The freezing ratio of the mould is[PI 2005]a)8D/75b)4D/75c)75/8Dd)75/4DCorrect answer is option 'A'. Can you explain this answer?.
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