Chemical Engineering MCQs

Page No. 99

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


aSpheroidising

✓


bTempering

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cNormalising

✖


dAnnealing

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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

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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

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bIncreases

✓


cRemain same

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dDecreases linearly

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View Answer Increases

Invar contains the highest percentage of___________________?


aVanadium

✖


bIron

✓


cTungsten

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dCobalt

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View Answer Iron

Percentage of silver in German silver is__________________?


a5

✖


b10

✖


c20

✖


d0

✓


View Answer 0

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