Related Questions

The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:
A 15, 75, 10
B 75, 10, 15
C 10, 15, 75
D 10, 75, 15
The widest explosive limit is of __________ , thereby making it the most explosive gas.
A Acetylene
B Petrol vapor
C Hydrogen
D Carbon monoxide
What is a mixture of potassium nitrate, powdered charcoal and sulphur called?
A Glass
B Cement
C Paint
D Gun powder
Gun powder uses
A Sulphur
B Charcoal
C Potassium nitrate
D All of the above
__________ is not a constituent of gun powder.
A Carbon
B Charcoal
C Sulphur
D Potassium nitrate
Powder metallurgy process does not make metal powder by
A Atomisation
B Grinding/milling
C Hammering
D Electrolytic deposition
The process of heating the cold pressed metallic powder is called __________ in powder metallurgy.
A Precipitation
B Fusion
C Sintering
D Agglomeration
Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about
A 0.1
B 1
C 2.5
D 3.5
The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as
A Cementation process
B Crucible process
C Bessemer process
D Open hearth process
Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the
A Decolourisation of sugar
B Solvent recovery from air and gases
C Absorption of gases and vapor
D Electrode manufacture

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