Chemical Engineering MCQs

Page No. 829

Austempering process results in the formation of ________________ structure ?


aMartensitic


bBainitic


cCarburised


dStressed


View Answer Bainitic

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


aH


bH/2


cH/4


dH/6


View Answer H/6

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


aCast iron


bSoft brass


cRound specimen of ductile metal


dFlat tensile specimen of ductile metal



Which of the following is not a dielectric material ?


aCotton, silk and paper


bAsbestos, glass, porcelain and mica


cRubber and polymeric resins


dAll refractory materials



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


aTravel in a straight line


bGet deflected by magnetic electric field


cProduce fluorescence


dHeat the exposed material



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


aAsbestos cement


bSteel


cCement concrete


dStoneware


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


bBlast of air


cMixture of water and air


dRain of molten lead


View Answer Rain of molten lead

The rolling process cannot be used to produce______________________?


aPlates


bRods


cTubes


dWires


View Answer Tubes

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


aOutside


bInside


cMean


dNone of these


View Answer Outside

Dowtherm is a____________________?


aHigh temperature heating medium (a petroleum product)


bProduct of coal tar distillation


cVery heat sensitive material


dNone of these



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