Chemical Engineering MCQs

Page No. 785

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


aNatural

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bNeoprene

✓


cButadiene

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dNitrile

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View Answer Neoprene

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


aIndependent of

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bInversely proportional to

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cDirectly proportional to

✓


dNone of these

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


aExtrusion

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bRolling

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cDeep drawing

✓


dWire drawing

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View Answer Deep drawing

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


aSequence of operation to be performed

✓


bProgress of work performed

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cAuthorisation of work to be performed

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dBalancing of load on machines

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Steel & cast iron pipes are produced by ______________ casting ?


aSlush

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bDie

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cInvestment

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dTrue centrifugal

✓


View Answer True centrifugal

Magnesium is present in___________________?


aHaemoglobin

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bChlorophyll

✓


cHypo solution

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dNone of these

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View Answer Chlorophyll

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


aDeuterium

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bHydrogen

✓


cNeon

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dHelium

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View Answer Hydrogen

Highest cutting speed is achieved by the _______________ tool material ?


aHigh speed steel

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bCarbide

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cCast alloy

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dPlain carbon steel

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View Answer Carbide

Which of the following materials has the poorest electrical conductivity ?


aCarbon

✓


bAluminium

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cSilver

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dStainless steel

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View Answer Carbon

For an ideal gas, Cp – Cv is____________________?


aR

✓


b-R

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c0

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d(3/2) R

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View Answer R

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