Chemical Engineering MCQs

Page No. 119

Softening of hardened steel is done by its_____________________?


aNormalising


bTempering


cAnnealing


dCarburising


View Answer Tempering

_____________________ is used for determining the tensile strength of steels ?


aHydraulic press


bUniversal testing machine


cMechanical press


dNone of these



For storing water and acid free benzol, use a ______________ vessel?


aSteel


bKarbate


cStainless steel


dNone of these


View Answer Steel

In the equation, PVn = constant, if the value of n = ± ∞, then it represents a reversible _____________ process?


aAdiabatic


bIsometric


cIsentropic


d Isothermal


View Answer Isometric

Gas holder of a gobar (cow-dung) gas plant is made of___________________?


aMolybdenum stainless steel


bTin


cMild steel


dAluminium


View Answer Mild steel

For an ideal gas, the activity co-efficient is_________________?


aDirectly proportional to pressure


bInversely proportional to pressure


cUnity at all pressures


dNone of these



Copper is dissolved from its ore by H2SO4 in a percolation tank made of_________________?


aWood


bStainless steel


cReinforced concrete lined with lead


dHigh silicon iron (14% Si)



A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be _____________ litres?


a448


b224


c22.4


d Data insufficient; can’t be computed


View Answer 448

Addition of ______________ in steel is helpful in increasing the depth of hardness?


aChromium


bSulphur


cVanadium


dTungsten


View Answer Chromium

Pick out the correct equation relating ‘F’ and ‘A’___________________?


aF = A + PV


b F = E + A


cF = A – TS


dF = A + TS


View Answer F = A + PV

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