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71
Lap joints are preferred over butt joints in soldering/brazing, because these joints are
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Answer: Option D
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72
α-rays are
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Answer: Option B
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73
In a totally irreversible isothermal expansion process for an ideal gas, ΔE = 0, ΔH = 0. Then ΔQ and ΔS will be
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Answer: Option B
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