Chemical Engineering MCQs

Page No. 134

18/8 stainless steel means, that it contains__________________?


a18% chromium and 8% nickel


b18% chromium and 8% molybdenum


c18% nickel and 8% chromium


d18% molybdenum and 8% chromium



Aqueous nitric acid is stored in ______________ vessel?


aPlain carbon steel


bStainless steel


cCast iron


dThermosetting plastic material


View Answer Cast iron

Equilibrium constant decreases as the temperature___________________?


aIncreases, for an exothermic reaction


b Decreases, for an exothermic reaction


cIncreases, for an endothermic reaction


dNone of these



High speed steel should have high___________________?


aToughness


bWear resistance


cHardenability


dBoth B. & C.


View Answer Both B. & C.

Anodic material used for the cathodic protection of underground buried steel pipeline is_________________?


aNickel or copper


bZinc or magnesium


cBronze


dBrass


View Answer Zinc or magnesium

The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the _____________ equation?


aGibbs-Duhem


bVan Laar


c Gibbs-Helmholtz


dMargules


View Answer Gibbs-Duhem

Wrought iron is a suitable material of construction for handling _____________ solutions?


aDilute acidic


bConcentrated acidic


cAlkalis & alkaline


dNone of these


View Answer Alkalis & alkaline

Galvanising is generally done on___________________?


aNon-ferrous metals


bLow carbon steel


cStainless steel


dCast iron


View Answer Low carbon steel

The necessary and sufficient condition for equilibrium between two phases is_________________?


a The concentration of each component should be same in the two phases


bThe temperature of each phase should be same


cThe pressure should be same in the two phases


dThe chemical potential of each component should be same in the two phases



Vycor, a widely used material for making ‘thermal wells’ in temperature measurement, is a_______________?


aCermet


bGlass


cThermosetting plastic


dMetallic alloy


View Answer Glass

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