Chemical Engineering MCQs

Page No. 117

Metalloid is__________________?


aHighly electronegative in nature

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bAn element which exhibits the properties of both metal & non-metal

✓


cAn alloy

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dAll A., B. and C.

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The ability of a material to offer resistance to scratching or indentation is a measure of its_________________?


aBrittleness

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bToughness

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cHardness

✓


dResilience

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View Answer Hardness

In the Kraft process of sulphate paper pulp manufacture, the black liquor and the white liquor storage tank is made of _______________?


aConcrete

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bWood

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cSteel

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dPorcelain

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View Answer Steel

A magnetic material becomes ____________ above the Curie temperature?


aFerromagnetic

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bDiamagnetic

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cParamagnetic

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dNone of these

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View Answer Paramagnetic

Common house hold glass (i.e., soda-lime glass) is a/an _____________ material?


aFully crystalline

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bPartly crystalline

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cAmorphous

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dNone of these

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View Answer Partly crystalline

Carbon content in plain carbon steel is ______________ percent?


a0.1 to 0.15

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b0.35 to 0.45

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c0.65 to 0.80

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d0.85 to 1.2

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View Answer 0.35 to 0.45

For handling sulphuric acid of 95% strength, the suitable material of construction for pipes is__________________?


aStainless steel

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bCast iron

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cAluminium

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dNickel

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View Answer Cast iron

Coke oven walls are lined with _____________ bricks?


aSilica

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bTar-dolomite

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cLow thermal conductivity

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dFire clay

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View Answer Silica

Pick out the wrong statement?


aMetal/alloys having hexagonal crystal lattice structure are less malleable than those having cubic crystal lattice structure

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bMetal/alloys having body centred cubic (bcc) crystal lattice structure is stronger & less ductile than those having face centred cubic (fcc) crystal lattice structure

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cTungsten has a body centred cubic (bcc) crystal lattice structure

✓


dBoth ferritic & austenitic stainless steel has a face centred cubic (fcc) crystal structure

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Metal at the top of the electromotive series is________________?


aLeast active

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bMost stable

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cMost active

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dMost noble

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View Answer Most active

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