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.Management Sciences
Category: CHEMICAL ENGINEERING
Calorific value of coke oven gas is around ______________ Kcal/Nm3?
A. 900
B. 4200
C. 7500
D. 2000
With increasing alumina content, the fusion point of high alumina refractories__________________?
A. Increases
B. Decreases
C. Remain constant
D. May increase or decrease; depends on its alumina content
Fractional solvent extraction______________________?
A. Employs only one solvent
B. Employs two solvents
C. Results in low interfacial tension
D. None of these
In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the ____________ variable?
A. Load
B. Manipulated
C. Controlled
D. None of these
Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil ?
A. Modern theory
B. Carbide theory
C. Engler theory
D. All A., B. and C.
The ____________ of a vapor pressure thermometer is a secondary element ?
A. Pointer
B. Bourdon tube
C. Bulb
D. None of these
Low grade phosphate rock can be used in electrical furnace, because__________________?
A. Of the better CaO/SiO2 balance for slag formation
B. CaO content is less
C. It is cheap
D. It produces low cost product
Which of the following is not a characteristic observed in material failure by fatigue fracture ?
A. Plastic deformation of material does not occur
B. Initiation of crack from below the surface does not occur
C. Initiation of crack occurs on the surface of the machine part
D. Presence of both rough & smooth zone with conchoidal markings in smooth zone of the
Casing head gasoline is the liquid __________________?
A. Butane
B. Propane
C. Natural gas
D. Gasoline separated from wet natural gas by compression
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