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The most preferred process for casting gas turbine blades is

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The most preferred process for casting gas turbine blades is

Answer & Solution
Correct Answer: Option B
Shell moulding is an expendable mold casting process that uses a resin covered sand to form the mold.
The most preferred process for casting gas turbine blades is shell moulding.
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3 Comments
Sachin More
Sachin More 6 years ago
its wrong ,gas turbine blades are made up from investment casting
correct it ASAP
Tarik Hassan
Tarik Hassan 7 years ago
Ans is D
ManiKanta Sunkara
ManiKanta Sunkara 7 years ago
This Question was asked in IES 1992 , And the Answer is Only Investment Casting.

If you need the explanation, Investment Casting has an tolerance of plus or minus 0.005 where as for Shell moulding it is plus or minus 0.02.
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