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Materials and Construction

Materials and Construction
Spark plugs, ignition tubes and electrodes are made of nickel __________ alloys.

Copper
Manganese
Beryllium
Iron

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Materials and Construction
Tubes of multiple effect evaporator used for concentration of sugar cane juice are made of

Stainless steel
Brass
Nickel
Copper

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Materials and Construction
Presence of high amount of silicon in cast iron

Increases the formation of graphite
Increases the contraction of the metal
Suppresses the decomposition of Fe₃ C
Reduces its fluidity

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Materials and Construction
Cast iron has

High malleability
Very high tensile strenth
Elastic limit close to ultimate breaking strength
High ductility

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Materials and Construction
Galvanising is generally done on

Non-ferrous metals
Low carbon steel
Stainless steel
Cast iron

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Materials and Construction
A metallic alloy in general as compared to their pure metal components is

Having lower electrical conductivity
Having higher melting point
More corrosion resistant
Having lower hardness, reactivity and fusibility

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