Chemical Engineering MCQs

Page No. 97

Water on heating from 1 to 4°C___________________?


a Contracts


bExpands


cHas same volume


dMay contract or expand


View Answer Contracts

Specify the material of construction suitable for handling concentrated HNO3 at 100°C ?


aHigh silicon iron, Kel-F and Teflon


bTin and wood


cSilicone rubber


dStainless steel



Which of the following alloy steels is the most suitable for making gun barrels and projectiles ?


aTungsten steel


bMolybdenum steel


cNickel-chrome steel


dCobalt steel


View Answer Nickel-chrome steel

In the equation PVn = constant, if the value of n = y = Cp/Cv, then it represents a reversible ______________ process?


a Isothermal


bAdiabatic


cIsentropic


dPolytropic


View Answer Isentropic

Heavy duty bearings are usually made of___________________?


aWhite metal


bPhosphorous bronze


cMonel


dZinc


View Answer White metal

The kinetic energy of gas molecule is zero at_____________________?


a0°C


b273°C


c100°C


d -273°C


View Answer -273°C

Pure nickel is___________________?


aFerromagnetic above its curie point (i.e., 415°C)


bHaving h.c.p. crystal lattice


cFerromagnetic at room temperature


dNot resistant to oxidation at high temperature



A system is said to be at equilibrium, if the entropy of the system has reached ____________ value?


aMinimum


b Zero


cMaximum


d None of these


View Answer Maximum

White metal is an alloy of___________________?


aLead, tin and cadmium


bCopper, tin and zinc


cCopper and lead


dNone of these


View Answer None of these

Fugacity is a measure of the____________________?


aEscaping tendencies of the same substance in different phases of a system


bRelative volatility of a mixture of two miscible liquids


c Behaviour of ideal gases


d None of these



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