GATE PI · 2021 · PI
Question 45: Casting
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Question 45
PINAT2 marksNeeds review
A company is producing a disc-shaped product of 50 mm thickness and 1.0 m diameter using sand casting process. The solidification time of the above casting process is estimated by Chvorinov’s equation
, where B is the mold constant, and V and A are the volume and surface area of the casting, respectively. It is decided to modify both the thickness and diameter of the disc to 25 mm and 0.5 m, respectively, maintaining the same casting condition. The percentage reduction in solidification time of the modified disc as compared to that of the bigger disc is ________. [round off to one decimal place]Log in to check the answer
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2021PI
GATE PI 2021 · Paper 1
Production and Industrial Engineering · Original paper archive
- Section
- Production and Industrial Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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