Chemical Engineering MCQs

Page No. 785

_______________ rubber is generally used for making ‘O’ rings used for vacuum sealings?


aNatural


bNeoprene


cButadiene


dNitrile


View Answer Neoprene

A fluid is termed as the Newtonian fluid, when the shear stress is _________________ the velocity gradient ?


aIndependent of


bInversely proportional to


cDirectly proportional to


dNone of these



Earing is a defect found in steels after the following metal working operation ?


aExtrusion


bRolling


cDeep drawing


dWire drawing


View Answer Deep drawing

Routing in production, planning & control is concerned with the___________________?


aSequence of operation to be performed


bProgress of work performed


cAuthorisation of work to be performed


dBalancing of load on machines



Steel & cast iron pipes are produced by ______________ casting ?


aSlush


bDie


cInvestment


dTrue centrifugal


View Answer True centrifugal

Magnesium is present in___________________?


aHaemoglobin


bChlorophyll


cHypo solution


dNone of these


View Answer Chlorophyll

All the atoms of the world comprise of electrons, proton & neutron except that of ______________ atom in which neutron is absent ?


aDeuterium


bHydrogen


cNeon


dHelium


View Answer Hydrogen

Highest cutting speed is achieved by the _______________ tool material ?


aHigh speed steel


bCarbide


cCast alloy


dPlain carbon steel


View Answer Carbide

Which of the following materials has the poorest electrical conductivity ?


aCarbon


bAluminium


cSilver


dStainless steel


View Answer Carbon

For an ideal gas, Cp – Cv is____________________?


aR


b-R


c0


d(3/2) R


View Answer R

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