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Which of the following sand ramming methods result into hardest layer at parting plane and around the pattern and less dense in top layers?
- a)Jolting
- b)Squeezing
- c)Jolting and Squeezing
- d)Slinging
Correct answer is option 'A'. Can you explain this answer?
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Which of the following sand ramming methods result into hardest layer...
Jolting results in hardest layer at parting plane and around the pattern and less dense in top layer.
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Which of the following sand ramming methods result into hardest layer...
Introduction:
The sand ramming method is used in foundry processes to pack sand around a pattern in order to create a mold cavity. There are various sand ramming methods, and each method produces different results in terms of hardness and density of the mold. The question asks which method results in the hardest layer at the parting plane and around the pattern, while being less dense in the top layers.
Jolting:
Jolting is a sand ramming method where the flask containing the pattern is subjected to a jolting action. This action helps in compacting the sand around the pattern. The jolting action causes the sand particles to rearrange and settle more tightly, resulting in a denser mold. However, this method does not provide uniform compaction throughout the entire mold.
Squeezing:
Squeezing is another sand ramming method where the flask containing the pattern is squeezed by applying pressure. This pressure helps in packing the sand around the pattern. Squeezing provides better uniform compaction compared to jolting and results in a denser mold. However, the hardness of the mold may not be as high as in the case of jolting.
Jolting and Squeezing:
Jolting and squeezing are both used in combination in some sand ramming methods. This combination helps in achieving better compaction and density of the mold. However, the hardness of the mold may still not be as high as in the case of jolting alone.
Slinging:
Slinging is not a sand ramming method. It involves the process of throwing or slinging sand particles onto the pattern to create a mold. This method does not provide proper compaction or density and is not suitable for creating molds with a hard layer at the parting plane and around the pattern.
Conclusion:
Based on the explanations above, it can be concluded that the sand ramming method that results in the hardest layer at the parting plane and around the pattern, while being less dense in the top layers, is jolting (option A). Jolting provides better compaction and hardness compared to squeezing, jolting and squeezing, and slinging.
The sand ramming method is used in foundry processes to pack sand around a pattern in order to create a mold cavity. There are various sand ramming methods, and each method produces different results in terms of hardness and density of the mold. The question asks which method results in the hardest layer at the parting plane and around the pattern, while being less dense in the top layers.
Jolting:
Jolting is a sand ramming method where the flask containing the pattern is subjected to a jolting action. This action helps in compacting the sand around the pattern. The jolting action causes the sand particles to rearrange and settle more tightly, resulting in a denser mold. However, this method does not provide uniform compaction throughout the entire mold.
Squeezing:
Squeezing is another sand ramming method where the flask containing the pattern is squeezed by applying pressure. This pressure helps in packing the sand around the pattern. Squeezing provides better uniform compaction compared to jolting and results in a denser mold. However, the hardness of the mold may not be as high as in the case of jolting.
Jolting and Squeezing:
Jolting and squeezing are both used in combination in some sand ramming methods. This combination helps in achieving better compaction and density of the mold. However, the hardness of the mold may still not be as high as in the case of jolting alone.
Slinging:
Slinging is not a sand ramming method. It involves the process of throwing or slinging sand particles onto the pattern to create a mold. This method does not provide proper compaction or density and is not suitable for creating molds with a hard layer at the parting plane and around the pattern.
Conclusion:
Based on the explanations above, it can be concluded that the sand ramming method that results in the hardest layer at the parting plane and around the pattern, while being less dense in the top layers, is jolting (option A). Jolting provides better compaction and hardness compared to squeezing, jolting and squeezing, and slinging.
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Which of the following sand ramming methods result into hardest layer at parting plane and around the pattern and less dense in top layers?a) Joltingb) Squeezingc) Jolting and Squeezingd) SlingingCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which of the following sand ramming methods result into hardest layer at parting plane and around the pattern and less dense in top layers?a) Joltingb) Squeezingc) Jolting and Squeezingd) SlingingCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following sand ramming methods result into hardest layer at parting plane and around the pattern and less dense in top layers?a) Joltingb) Squeezingc) Jolting and Squeezingd) SlingingCorrect answer is option 'A'. Can you explain this answer?.
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