Chemical Engineering MCQs

Page No. 135

Dry chlorine can be handled in a vessel made of__________________?


aIron or steel

✓


bPVC

✖


cNickel

✖


dBrass

✖


View Answer Iron or steel

Combination of metals and ceramics are called___________________?


aMetalloy

✖


bCermets

✓


cPellets

✖


dNon-crystalline ceramics

✖


View Answer Cermets

For an ideal liquid solution, which of the following is unity ?


aActivity

✖


bFugacity

✖


cActivity co-efficient

✓


d Fugacity co-efficient

✖


View Answer Activity co-efficient

Biological shield in a nuclear power reactor is made of________________?


aConcrete

✓


bSteel

✖


cCadmium

✖


dZircaloy

✖


View Answer Concrete

As the impurities are oxidised, the melting point of iron___________________?


aDecreases

✖


bRemains unchanged

✖


cIncreases

✓


dMay increase or decrease; unpredictable

✖


View Answer Increases

Nitriding of steel is a process for________________?


aCase hardening

✓


bSpheroidising

✖


cNormalising

✖


dAnnealing

✖


View Answer Case hardening

Internal energy is equal to the heat absorbed in case of a/an ______________ process?


aConstant volume

✓


bPolytropic

✖


cAdiabatic

✖


dConstant pressure

✖


View Answer Constant volume

German silver is an alloy of copper, nickel and________________?


aZinc

✓


bSilver

✖


cTin

✖


dLead

✖


View Answer Zinc

Which of the following finds the least commercial use ?


aPure iron

✓


bHigh silicon iron

✖


cLow carbon steel

✖


dHigh carbon steel

✖


View Answer Pure iron

The expression for entropy change, ΔS = n Cp . ln (T2/T1), is valid for the ______________ of a substance?


aSimultaneous pressure & temperature change

✖


b Heating

✖


cCooling

✖


d Both B. and C

✓


View Answer Both B. and C

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