Chemical Engineering MCQs

Page No. 790

Desalination of water__________________?


aMakes it potable


bMakes it non-potable


cMeans distillation of water


dNone of these


View Answer Makes it potable

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


aThinner


bDryer


cDrying oil


dNone of these


View Answer Drying oil

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


aCompression


bExtrusion


cShearing


dBoth B & C


View Answer Both B & C

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


aWhite


bCast


cWrought


dPig


View Answer Wrought

Which one is neutral in character ?


aN2O4


bN2O


cN2O5


dN2O3


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


bIs frictionless


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


dis incompressible & frictionless



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


a550-600


b450-500


c350-400


d250-300


View Answer 350-400

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


a10


b20


c30


d40


View Answer 40

What is the pH of distilled water ?


a0


b1


c7


d14


View Answer 7

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


aRe0.5, Re0.8


bRe0.8, Re-0.5


cRe0.8, Re0.5


dRe-0.8, Re0.5


View Answer Re0.8, Re0.5

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