The minimum number of degrees of freedom for any system is
A.0
B.1
C.2
D.3
Category: Chemical Engineering Mcqs
Under actual combustion conditions unless there is sufficient excess air the flue gas contains
A.carbon monoxide
B.carbon dioxide
C.oxygen nitrogen
D.all of these answers
Which one of the following characteristics is different for the neutral atoms of the isotopes of an element?
A.Atomic number
B.Atomic weight
C.Number of protons
D.Number of electrons
Which of the following systems is an example of minimum boiling azeotrope at 1 atm?
A.Carbon disulphide-acetone
B.Ethanol-water
C.Benzene-ethanol
D.Acetone-chloroform
Which of the following hydrocarbons are the most desirable in kerosine?
A.Paraffins
B.Isoparaffins
C.Naphthenes
D.Armatics
Antiosidants are added in gasoline
A.to minimize gum formation
B.to prevent icing of the carburettor
C.to prevent the build-up of lead in engines
D.for identification
Hydrogen bomb is based on the nuclear fusion of
A.hydrogen
B.deuterium
C.tritium
D.helium
Depending on the size of the particles being collected the wet scrubbers operate in a pressure drop range from
A.0.2 to 0.5 in. H2O g
B.3 to 60 in. H2O g
C.0.01 to 0.1 in. H2O g
D.760 to 800 in. H2O g
Which of the following is not a fission fuel?
A.U-233
B.U-235
C.Pu-239
D.U-238
Mercury is used in barometers due to
A.its very low vapour pressure
B.its high density
C.its low compressibility
D.negligible capillary effect
