Related Questions

Dolomite bricks have good resistance to attack by
A Molten steel
B Iron oxide
C Lime slag
D None of these
Tar bonded dolomite bricks
A Are stored under controlled temperature & humidity to avoid hydration
B Are used in outer lining of L.D. converters
C Have poorer hydration resistance than pitch bonded bricks
D All of the above
Dolomite is a/an
A Sedimentary rock
B Plutonic rock
C Igneous rock
D Metamorphic rock
The reductant used in the extraction of magnesium from calcined dolomite via Pidgeon's process is
A Pure carbon
B Pure silicon
C Ferro silicon
D Ferro manganese
Which of the following is used for calcination of limestone and dolomite in industrial practice?
A Fluidised bed reactor
B Moving bed reactor
C Fixed bed reactor
D None of these
Tar dolomite bricks are used in the
A Basic Bessemer converter
B Basic open hearth furnace
C Electric furnaces
D All of the above
The main constituent of biogas is
A Butane
B Methane
C Hydrogen Sulphide
D Carbondioxide
The main chemical constituent of the oil of cardamom which is responsible for flavour of this oil is
A cineole
B engenol
C geraniol
D limonene
The main chemical constituent of clay is
A silicon oxide
B aluminium borosilicate
C zeolites
D aluminium silicate
The main active constituent of tea and coffee is
A nicotine
B chlorophyll
C caffeine
D aspirin

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