51. Factor of safety is the ratio of the __________ stress to the working stress.
52. Electrolytic reduction cell used for conversion of calcined Al2O3 to Al is a carbon lined furnace operating at 800 - 900°C. The purpose of electric current supplied to the furnace is to
53. In radiative heat transfer, a grey surface is the one, which has
54. The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and at around room temperature, this ratio is proportional to (where, T = absolute temperature, °K)
55. Eutectoid reaction for iron-carbon system occurs at a temperature of __________ °C.
56. Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.
57. High speed steel tools retain their hardness upto a temperature of __________ °C.
58. Super conduction in metals is observed at a temperature of __________ °K.
59. Rain drops falling through atmospheric air attain limited terminal velocity, because of
60. The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system
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- Chemical Engineering Basics - Section 1
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- Chemical Engineering Basics - Section 13