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1
Puddling process is used for converting pig iron into
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Answer: Option C
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2
Between 230°C and 370°C, blue brittleness is caused in mild steel because of the
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Answer: Option B
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3
Metal shots used in shot blasting are made of
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Answer: Option B
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4
Which of the following is the most effective inhibitor of grain growth, when added in small quantity in steel ?
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Answer: Option B
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5
Fibrous fracture is normally encountered in the __________ materials.
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Answer: Option C
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6
Wood is a/an __________ material.
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Answer: Option B
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7
Lead is most readily dissolved in
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Answer: Option A
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8
Holes in a plate for rivetted joints is preferably made by
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Answer: Option A
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9
Hard magnetic materials have high
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Answer: Option C
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10
Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8
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Answer: Option B
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