Chemical Engineering MCQs

Page No. 829

Austempering process results in the formation of ________________ structure ?


aMartensitic

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bBainitic

✓


cCarburised

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dStressed

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View Answer Bainitic

Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank) ?


aH

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bH/2

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cH/4

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dH/6

✓


View Answer H/6

Which of the following is prone to cup and cone fracture ?


aCast iron

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bSoft brass

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cRound specimen of ductile metal

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dFlat tensile specimen of ductile metal

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Which of the following is not a dielectric material ?


aCotton, silk and paper

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bAsbestos, glass, porcelain and mica

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cRubber and polymeric resins

✓


dAll refractory materials

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Particle nature of cathode rays is proved due to the fact that they ________________?


aTravel in a straight line

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bGet deflected by magnetic electric field

✓


cProduce fluorescence

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dHeat the exposed material

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The most suitable material of construction for a sewer to carry sewage under high pressure is________________________?


aAsbestos cement

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bSteel

✓


cCement concrete

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dStoneware

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View Answer Steel

In “Imperial Smelting Process” for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following _______________________?


aJet of water at high pressure

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bBlast of air

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cMixture of water and air

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dRain of molten lead

✓


View Answer Rain of molten lead

The rolling process cannot be used to produce______________________?


aPlates

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bRods

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cTubes

✓


dWires

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View Answer Tubes

Boiler tube size is specified by its thickness and _____________________ diameter ?


aOutside

✓


bInside

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cMean

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dNone of these

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View Answer Outside

Dowtherm is a____________________?


aHigh temperature heating medium (a petroleum product)

✓


bProduct of coal tar distillation

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cVery heat sensitive material

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dNone of these

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