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51
The specific gravity of coal depends mainly on its __________ content.
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Answer: Option C
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52
In a plate type heat exchanger, heat transfer plates are never made of
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Answer: Option B
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53
Platinum and silver are corroded by
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Answer: Option D
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54
For storing water and acid free benzol, use a __________ vessel.
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Answer: Option A
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55
A steel alloy containing 36% nickel is called __________ , which has a zero co- efficient of expansion.
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Answer: Option C
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56
Hydrocyanic acid is not shipped in
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Answer: Option A
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57
The carbonating tower used in Solvay process of soda ash manufacture is made of
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Answer: Option A
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58
The material of construction of bearings is
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Answer: Option B
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59
Metal at the top of the electromotive series is
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Answer: Option C
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60
Which of the following would not be a suitable material of construction for handling aqueous hydrofluoric acid (HF) at 100°C ?
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Answer: Option B
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