Chemical Engineering MCQs

Page No. 134

18/8 stainless steel means, that it contains__________________?


a18% chromium and 8% nickel

✓


b18% chromium and 8% molybdenum

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c18% nickel and 8% chromium

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d18% molybdenum and 8% chromium

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Aqueous nitric acid is stored in ______________ vessel?


aPlain carbon steel

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bStainless steel

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cCast iron

✓


dThermosetting plastic material

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View Answer Cast iron

Equilibrium constant decreases as the temperature___________________?


aIncreases, for an exothermic reaction

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b Decreases, for an exothermic reaction

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cIncreases, for an endothermic reaction

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dNone of these

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High speed steel should have high___________________?


aToughness

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bWear resistance

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cHardenability

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dBoth B. & C.

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View Answer Both B. & C.

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


aNickel or copper

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bZinc or magnesium

✓


cBronze

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dBrass

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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

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bVan Laar

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c Gibbs-Helmholtz

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dMargules

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View Answer Gibbs-Duhem

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


aDilute acidic

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bConcentrated acidic

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cAlkalis & alkaline

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dNone of these

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View Answer Alkalis & alkaline

Galvanising is generally done on___________________?


aNon-ferrous metals

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bLow carbon steel

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cStainless steel

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dCast iron

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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

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bThe temperature of each phase should be same

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cThe pressure should be same in the two phases

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

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


aCermet

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bGlass

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cThermosetting plastic

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dMetallic alloy

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View Answer Glass

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