Chemical Engineering MCQs

Page No. 790

Desalination of water__________________?


aMakes it potable

✓


bMakes it non-potable

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cMeans distillation of water

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dNone of these

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View Answer Makes it potable

_______________ is a non volatile film forming constituent of a paint ?


aThinner

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bDryer

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cDrying oil

✓


dNone of these

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View Answer Drying oil

The mechanism involved in the removal of metal in drilling operation is by_________________?


aCompression

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bExtrusion

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cShearing

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dBoth B & C

✓


View Answer Both B & C

Out of the following _______________ iron has the best capability to bear sudden & excessive shocks?


aWhite

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bCast

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cWrought

✓


dPig

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View Answer Wrought

Which one is neutral in character ?


aN2O4

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bN2O

✓


cN2O5

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dN2O3

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View Answer N2O

The normal stress is the same in all directions at a point in a fluid, only when the fluid__________________?


aIs at rest & has zero viscosity

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bIs frictionless

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cFluid layer has no motion relative to an adjacent layer of fluid

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dis incompressible & frictionless

✓



Hot extrusion of aluminium is done in the temperature range of ________________ °C ?


a550-600

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b450-500

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c350-400

✓


d250-300

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View Answer 350-400

Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be ______________ mm?


a10

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b20

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c30

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d40

✓


View Answer 40

What is the pH of distilled water ?


a0

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b1

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c7

✓


d14

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View Answer 7

Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as______________________?


aRe0.5, Re0.8

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bRe0.8, Re-0.5

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cRe0.8, Re0.5

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dRe-0.8, Re0.5

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View Answer Re0.8, Re0.5

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