Chemical Engineering MCQs

Page No. 16

Reaction of nitric acid and sulphuric acid with phosphate rock produces_________________?


aNitrophosphate


b Diammonium phosphate


c Tricresyl phosphate


dTributyl phosphate


View Answer Nitrophosphate

Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about _____________ percent?


a< 2


b< 5


c< 8


d< 10


View Answer < 2

Red phosphorous is changed into white phosphorous by______________________?


aHeating in presence of light


bMelting under pressure


cVaporisation followed by condensation


dNone of these



Means for giving direction to the circulation of gases in furnaces are_____________________?


aFans


bArrangement of heating stock in the furnaces


cLocation of outlet ports and heating & combustion devices


dAll A., B. and C.


View Answer All A., B. and C.

Heat balance of furnace provides means of determining the_________________?


aThermal efficiency of the process


bSources of heat losses


cScope of reduction of heat losses


dAll A., B. and C.


View Answer All A., B. and C.

NPK fertiliser is a _______________ fertiliser?


a Complex


b Mixed


cNitrogenous


dPhosphatic


View Answer Mixed

Pick out the wrong statement ?


aIn a static mass of liquid, the pressure at a point is the same for all liquids


bPressure decreases exponentially with elevation in an isothermal atmosphere


cAtmospheric pressure = absolute pressure ‒ gage pressure


dAs per Pascal’s law, the pressure at a point in a static or uniformly moving fluid is equal in all directions



Montecatini process is a widely used process for the manufacture of ___________________?


aUrea


bCalcium ammonium nitrate


c Triple superphosphate


dNone of these


View Answer Urea

Pick out the correct statement pertaining to the flow through a converging-diverging tube ?


aThe value of Mach number is always unity at the throat


bNo shock wave develops in the tube when the Mach number at exit is greater than unity


cThroughout the converging portion of the tube, the density increases in the downstream direction


dNone of these



Which is a catalyst promoter used in catalytic ammonia synthesis reaction ?


aAl2O3


bCr2O3


c K2O


dMnO


View Answer K2O

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