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51
Boiling temperature of carbon dioxide at atmospheric pressure is __________ °C.
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Answer: Option B
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52
Silicon percentage in the silicon steel used for electrical appliances/equipments is
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Answer: Option C
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53
Silicon percentage in the silicon steel used for electrical appliances/equipments is
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Answer: Option C
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54
Endurance is a measure of fatigue limit of a metal. Fatigue crack in nitrided machine parts originates
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Answer: Option B
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55
The type of water filter normally employed/ preferred for treating small quantities of water in railway stations and individual industries is the __________ filter.
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Answer: Option B
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56
A simple closed grinding circuit may consist of
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Answer: Option A
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57
Which of the following is categorised as the plastic welding?
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Answer: Option C
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58
Ferrites are __________ magnetic.
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Answer: Option C
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59
The most prominent single cause of corrosion in boilertubes, drums, economisers and steam superheaters in a thermal power plant boiler is the
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Answer: Option C
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60
Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog?
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Answer: Option C
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