Chemical Engineering MCQs

Page No. 93

Hardest material so far found is__________________?


aDiamond


bGraphite


cCarborundum


dPumice stone


View Answer Diamond

The heat treatment process to which castings and the steel balls produced by cold heading are subjected is____________________?


aTempering


bNormalising


cAnnealing


dNone of these


View Answer Normalising

The second law of thermodynamics states that___________________?


a The energy change of a system undergoing any reversible process is zero


b It is not possible to transfer heat from a lower temperature to a higher temperature


cThe total energy of system and surrounding remains the same


d None of the above


View Answer None of the above

Which of the following has the highest density and the lowest melting point ?


aStainless steel


bTitanium


cLead


dAluminium


View Answer Lead

Which of the following is the hardest _______________?


aCementite


bPearlite


cAustenite


dFerrite


View Answer Austenite

The work done in isothermal compression compared to that in adiabatic compression will be__________________?


aLess


bMore


cSame


dMore or less depending upon the extent of work done


View Answer More

For platinum thermocouples, lead wires are made of___________________?


aCopper & copper-nickel alloys


bCopper & iron


cIron & nickel


dTin & nickel



The gas law (PV = RT) is true for an ______________ change?


aIsothermal


bAdiabatic


cBoth A. & B


dNeither A. nor B


View Answer Both A. & B

Which of the following is true for Virial equation of state ?


a Virial co-efficients are universal constants


bVirial co-efficients ‘B’ represents three body interactions


cVirial co-efficients are function of temperature only


d For some gases, Virial equations and ideal gas equations are the same



Which of the following is the lightest of engineering metals ?


aMagnesium


bAluminium


cTitanium


dTin


View Answer Magnesium

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