Chemical Engineering MCQs

Page No. 112

Ability of a material to ______________ is indicated by its damping capacity?


aWithstand compression

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bAbsorb vibration

✓


cAbsorb shock

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dNone of these

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View Answer Absorb vibration

A refrigerator may be termed as a____________________?


aHeat pump

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bHeat engine

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cCarnot engine

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dNone of these

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View Answer Heat pump

Chlorination of benzene is done to produce benzene hexachloride (a pesticide) in a photochemical reactor lined with_____________________?


aKarbate

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bLead or glass

✓


cFireclay bricks

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dPVC

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View Answer Lead or glass

The material used in the filament of electric bulbs is_________________?


aNichrome

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bTungsten

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cConstantan

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dGerman silver

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View Answer Tungsten

When liquid and vapour phases of one component system are in equilibrium (at a given temperature and pressure), the molar free energy is__________________?


aMore in vapour phase

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b More in liquid phase

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cSame in both the phases

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d Replaced by chemical potential which is more in vapour phase

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With increase in compression ratio, the efficiency of the otto engine________________?


a Increases

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bDecreases

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cRemain constant

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d Increases linearly

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View Answer Increases

Constituents of stellite are__________________?


aZinc, copper and nickel

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bCobalt, chromium and tungsten

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cZinc, aluminium and nickel

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dNickel, cobalt and vanadium

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Entropy of a substance remains constant during a/an ____________ change?


aReversible isothermal

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bIrreversible isothermal

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cReversible adiabatic

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dNone of these

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View Answer Reversible adiabatic

The phenomenon in which slow extension of material takes place with the time at constant load is called________________?


aPlasticity

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bCreep

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cElasticity

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dDuctility

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View Answer Creep

The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability ?


aLead

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bCopper

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cAluminium

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dWrought iron

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View Answer Lead

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