Chemical Engineering MCQs

Page No. 118

Hydrocyanic acid is not shipped in______________?


aCast iron vessels


bSteel cylinders


cAluminium containers


dMonel drums


View Answer Cast iron vessels

Polythene (low or high density) containers are not corroded by___________________?


aSulphuric acid (10%) at room temperature


bNitric acid (95%) at room temperature


cSulphur trioxide at 60°C


dAny of these



The process of coating steel sheets by zinc to improve its corrosion resistance is called___________________?


aCalorising


bGalvanising


cZincification


dTempering


View Answer Galvanising

Trough of an apron conveyor is made of___________________?


aLead lined concrete vessel


bWood


cMetal


dEither B. or C.


View Answer Either B. or C.

Maximum consumption of copper is in__________________?


aUtensil manufacture


bElectrical industry


cIndustrial equipment manufacture


dSmall scale industries


View Answer Electrical industry

Carbon supply in pack carburising process is in the form of_____________________?


aCharcoal


bCalcium carbide


cHydrocarbon oil


dGraphite


View Answer Charcoal

Cast iron vessels are not suitable for the storage of_________________?


aFreon


bH2SO4 (95%) at room temperature


cH2SO4 (fuming)


dWet SO2


View Answer Wet SO2

Which has the maximum melting point out of the following ?


aSteel


bCast iron


cStainless steel


dWrought iron


View Answer Wrought iron

Hardened steel is softened by___________________?


aNormalising


bTempering


cAnnealing


dCarburising


View Answer Tempering

The ‘bomb’ in the bomb calorimeter is made of___________________?


aMolybdenum stainless steel


bMild steel


cHigh silicon iron (14% Si)


dCopper



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