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41
Which of the following metals reacts violently with water ?
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Answer: Option B
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42
The process of removal of scale formed during hot rolling of steel is termed as
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Answer: Option C
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43
Silicon crystal can be converted to p-type semi-conductor by doping with
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Answer: Option D
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44
During sensible heating of humid air
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Answer: Option D
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45
At the point of boundary layer separation in fluid flow, the
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Answer: Option A
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46
The most suitable material of construction for a sewer to carry sewage under high pressure is
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Answer: Option B
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47
Stretcher strains found in a low carbon sheet are associated with the
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Answer: Option C
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48
For hardening high alloy steel, it is to be heated slowly and uniformly to avoid
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Answer: Option D
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49
To improve the machinability of steel by its softening, it is subjected to
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Answer: Option C
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50
A compact estimate about the amount of materials handling between various work stations is obtained from the
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Answer: Option D
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