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

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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

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bDirection of energy transfer

✓


cIrreversible processes only

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dNon-cyclic processes only

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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

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View Answer Acetic acid

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


aFirst law

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bZeroth law

✓


c Third law

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dSecond law

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View Answer Zeroth law

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