Chemical Engineering MCQs

Page No. 99

To improve the machinability of steel, it is generally subjected to_______________?


aSpheroidising


bTempering


cNormalising


dAnnealing


View Answer Spheroidising

Dilute sulphuric acid is transported in _____________ pipes?


aMild steel


bLead


cCopper


dSpecial alloys


View Answer Lead

Rotary lime kiln is an example of a/an _____________ system?


aClosed


bOpen


c Isolated


dNon-thermodynamic


View Answer Open

Cast iron and steel pipes are produced by ____________ casting?


aDie


bInvestment


cSlush


dTrue centrifugal


View Answer True centrifugal

Urea autoclave is made of_________________?


aCast iron


bRefractory blocks


cStainless steel


dLead lined steel


View Answer Stainless steel

Aqueous nitric acid is stored in________________?


aSteel drum


bStainless steel vessel


cCast iron vessel lined with acid-proof masonry brick


dCast iron vessel



Brinell Hardness Number (BHN) for talc is approximately in the range of____________________?


a1-5


b20-30


c100 -150


d100 -150


View Answer 20-30

For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system _____________ as its mole fraction increases?


aDecreases


bIncreases


cRemain same


dDecreases linearly


View Answer Increases

Invar contains the highest percentage of___________________?


aVanadium


bIron


cTungsten


dCobalt


View Answer Iron

Percentage of silver in German silver is__________________?


a5


b10


c20


d0


View Answer 0

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