Chemical Engineering MCQs

Page No. 119

Softening of hardened steel is done by its_____________________?


aNormalising

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bTempering

✓


cAnnealing

✖


dCarburising

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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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