Chemical Engineering MCQs

Page No. 111

Diamagnetic materials are magnetised________________?


aStrongly


bOnly slightly


cWith eddy currents only


dIn a direction opposite to that of the applied field



The equation, PV = nRT, is best obeyed by gases at____________________?


a Low pressure & high temperature


bHigh pressure & low temperature


cLow pressure & low temperature


d None of these



Hydrochloric acid is stored in a _____________ steel vessel?


aLead lined


bRubber lined


cGlass lined


dStainless


View Answer Rubber lined

Gibbs-Helmholtz equation is__________________?


aΔF = ΔH + T [∂(ΔF)/∂T]P


b ΔF = ΔH – TΔT


cd(E – TS) T, V < 0


ddP/dT = ΔHvap/T.ΔVvap



For spinning viscose rayon, the extrusion spinnerettes are made of ___________________?


aPlatinum or gold alloys


bHigh carbon steel


cAluminium


dNickel



Free energy change of mixing two liquid substances is a function of the__________________?


aConcentration of the constituents only


bQuantities of the constituents only


cTemperature only


dAll A, B. and C


View Answer All A, B. and C

Atmospheric corrosion of metals result from their________________?


aSlow oxidation


bFast oxidation


cFast hydration


dSlow dehydration


View Answer Slow oxidation

In case of an _______________ process, the temperature of the system increases?


aIsothermal compression


b Isothermal expansion


c Adiabatic expansion


dAdiabatic compression


View Answer Adiabatic compression

Babbitt metal used for bearings is a ____________base alloy?


aTin


bLead


cAluminium


dCopper


View Answer Tin

Adiabatic compression of a saturated water vapour makes it ____________________ ?


a Supersaturated


bSuperheated


cBoth A. and B


d Neither A. nor B


View Answer Superheated

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