Chemical Engineering MCQs

Page No. 88

While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is _______________?


aInfinity


bUnity


cConstant


dNegative


View Answer Constant

Which one is true for a throttling process ?


aA gas may have more than one inversion temperatures


bThe inversion temperature is different for different gases


cThe inversion temperature is same for all gases


dThe inversion temperature is the temperature at which Joule-Thomson co-efficient is infinity



An ideal material of construction for the storage of 50% caustic soda solution would be___________________?


aKarbate


bHigh silicon cast iron


cMonel


dNone of these


View Answer Monel

Stainless steel is not corroded by _____________________?


aHydrochloric acid (10%)


bNitric acid (10%)


cSulphuric acid (10%)


dSaturated brine


View Answer Nitric acid (10%)

In hot wire anemometer used for gas flow measurement, the wire is normally made of ______________________?


aCopper


bPlatinum


cConstantan


dChromium


View Answer Platinum

In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures are -13°C and 37°C respectively, the Carnot COP will be________________?


a5.2


b6.2


c0.168


dData insufficient, can’t be found out


View Answer 5.2

Addition of 2% nickel in steel makes it suitable for making ___________________?


aElectronic valves


bBoiler plates, rivets etc.


cTurbine blades


dConnecting rod



Low carbon steels are those in which carbon percentage is around____________________?


a0.1 to 0.35


b0.4 to 0.7


c0.8 to 1.5


d1.5 to 2


View Answer 0.1 to 0.35

Chemical engineering thermodynamics is concerned with the ____________ in/of chemical processes?


aReaction mechanism


bCalculation of rates


c Energy transformation from one form to another


dNone of these



Nickel and copper are the basic constituents of__________________?


aHastelloy


bMonel metal


cGerman silver


dInconel


View Answer Monel metal

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