Chemical Engineering MCQs

Page No. 106

Concentrated HCl at 30°C can be stored in a vessel made of ________________________?


aPTFE and porcelain


bCast iron and aluminium


cStainless steel and high silicon cast iron


dNone of these


View Answer PTFE and porcelain

German silver in an alloy of________________?


aCopper, nickel and zinc


bCopper, aluminium and silver


cSilver, zinc and aluminium


dSilver, nickel and zinc



Work hardening of a material ________________?


aDecreases its tensile strength


bDecreases its ductility


cIncreases its ductility


dDoes not affect its ductility



Which of the following is a non-magnetic material ?


aCobalt


bZinc


cNickel


dNone of these


View Answer Zinc

18/8 steel is a/an __________ stainless steel ?


aAustenitic


bFerritic


cMartensitic


dNone of these


View Answer Austenitic

Percentage elongation of a material is a measure of its _______________________?


aDuctility


bBrittleness


cToughness


dMalleability


View Answer Ductility

Tin vessels are corroded by____________________?


aAnhydrous ammonia


bAromatic solvents


cSynthetic detergent solution


dNone of these


View Answer None of these

Second law of thermodynamics is concerned with the_________________?


aAmount of energy transferred


bDirection of energy transfer


cIrreversible processes only


dNon-cyclic processes only



Lead pipes are not safe for carrying drinking water because water containing dissolved oxygen attacks lead thereby forming poisonous Pb (OH)2. Lead pipes are readily corroded by_________________?


aDilute HCI


bAcetic acid


cConcentrated H2SO4


dNone of these


View Answer Acetic acid

Which law of the thermodynamics provides basis for measuring the thermodynamic property ?


aFirst law


bZeroth law


c Third law


dSecond law


View Answer Zeroth law

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