Related Questions

Generally __________ are subjected to galvanising (i.e., zinc coating).
A Non-ferrous metals
B Non-metals
C Low carbon steels
D Stainless steel
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 main purpose of galvanising iron sheets is to
A Harden the surface
B Increase its glossiness and lustre
C Prevent the action of water
D Prevent the action of oxygen
The metal chiefly used for galvanising iron is :
A Zinc
B Mercury
C Cadmium
D Tin
Galvanising means covering iron with a thin coat of
A Tin
B Zinc
C Glaze
D Coal tar
Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as
A Sheradising
B Parkerising
C Anodising
D None of these
Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors.
A Beryllia
B Carborundum
C Corundum
D Thoria
For full face method, the excavation to be done is generally divided into
A Two sections
B Three sections
C Four sections
D Five sections
Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics.
A Piston
B Gear
C Positive displacement
D Sump
The tyre rotation is generally done at
A 1,000 km
B 4,000 km
C 6,000 km
D 10,000 km

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