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

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bIdeal

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cBuffer

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dZero pH

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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

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b1.3

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c2.3

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d3.3

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View Answer 3.3

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


aFlux

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bSlag

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cProtective layer

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dBinder

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View Answer Slag

In chemical dehumidification process___________________?


aWet bulb temperature increases

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bDry bulb temperature remains constant

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cDew point temperature increases

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dDry bulb temperature increases

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Shaft/rotor speed is most accurately measured by a_________________?


aFrequency counter

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bTachometer

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cStrobometer

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dSpeedometer

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View Answer Strobometer

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


aTensile

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bCompressive

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cYield

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dBearing

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View Answer Yield

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


a3

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b7

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c11

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d15

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View Answer 11

Magnetic permeability of iron is increased by its_____________________?


aDecarburising

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bAlloying with cobalt

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cPurification

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dAlternate heating & cooling

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View Answer Alloying with cobalt

The main reducing agent in iron blast furnace is____________________?


aCarbon dioxide

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bCarbon monoxide

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cOxygen

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dAir

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View Answer Carbon monoxide

Broaching tools are usually made of____________________?


aCermets

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bHigh speed steel

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cTungsten carbide

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dStellite

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View Answer High speed steel

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