Related Questions

Protection of ship hulls against sea water corrosion is done by coating with zinc because of the fact that zinc compared to iron is
A Reduced preferentially
B Cheaper
C Oxidised preferentially
D Lighter
If 2 kg of metal, of which 1/3 is zinc and the rest is copper s, be mixed with 3 kg of metal , of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?
A 13 : 42
B 19 : 43
C 15 : 42
D 17 : 43
Coating of zinc over steel is known as
A Cladding
B Galvanising
C Anodising
D Passivation
Iron is prevented from rusting by coating with zinc. This process is called as
A Galvanisation
B Corrosion
C Sublimation
D Reduction
Galvanising (i.e., zinc coating) of steel sheets is done to
A Prevent its rusting by contact with corrosive atmosphere
B Protect the base metal by cathodic protection
C Both A & B
D Neither A nor B
The process of coating steel sheets by zinc to improve its corrosion resistance is called
A Calorising
B Galvanising
C Zincification
D Tempering
Routers operate at layer _____. LAN switches operate at layer _____. Ethernet hubs operate at layer _____. Word processing operates at layer _____.
A 3, 3, 1, 7
B 3, 2, 1, none
C 3, 2, 1, 7
D 3, 3, 2, none
E All of the above
Galvanised iron is made by coating iron with
A Zinc
B Nickel
C Chromium
D Sulphur
If you need 98 ounces of iron and 2 ounces of carbon to make a sheet of steel. How much iron you need in ounces to make 12 sheet steel?
A 98
B 50
C 49
D 198
The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called :
A Zinc plating
B Alloy formation
C Vulcanization
D Galvanization

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