Chemical Engineering MCQs

Page No. 838

A solution which resists change in its pH value on addition of acid/alkali is called the ____________________ solution?


aNeutral


bIdeal


cBuffer


dZero pH


View Answer Buffer

FeO (s) + CO (g) = Fe (s) + CO2 (g), k = 0. 435 at 1173E; at equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K ?


a1.0


b1.3


c2.3


d3.3


View Answer 3.3

The material used for coating the welding electrode is termed as the___________________?


aFlux


bSlag


cProtective layer


dBinder


View Answer Slag

In chemical dehumidification process___________________?


aWet bulb temperature increases


bDry bulb temperature remains constant


cDew point temperature increases


dDry bulb temperature increases



Shaft/rotor speed is most accurately measured by a_________________?


aFrequency counter


bTachometer


cStrobometer


dSpeedometer


View Answer Strobometer

Factor of safety is the ratio of the ___________________ stress to the working stress?


aTensile


bCompressive


cYield


dBearing


View Answer Yield

The escape velocity of a body on earth which is independent of its mass is about ______________________ km/second?


a3


b7


c11


d15


View Answer 11

Magnetic permeability of iron is increased by its_____________________?


aDecarburising


bAlloying with cobalt


cPurification


dAlternate heating & cooling


View Answer Alloying with cobalt

The main reducing agent in iron blast furnace is____________________?


aCarbon dioxide


bCarbon monoxide


cOxygen


dAir


View Answer Carbon monoxide

Broaching tools are usually made of____________________?


aCermets


bHigh speed steel


cTungsten carbide


dStellite


View Answer High speed steel

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