Carbon content in wrought iron is
A) 0.15%
B) 0.25 to 1.5%
C) 2 to 4%
D) more than 4%
Correct Answer:
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Q16: By calcining and smelting iron ores, a
Q17: The colour of cast iron is
A)grey
B)white
C)both grey
Q18: The compressive and tensile strength of cast
Q19: For making spiral staircases, ideal material is
A)pig
Q20: Purest form of iron is
A)pig iron
B)cast iron
C)wrought
Q22: The ratio of tensile strength to compressive
Q23: Ribs are made on steel wires to
Q24: The property of metal enabling it to
Q25: Non-ferrous Materials
A)Market form of copper is/are
B)ingots
C)sheets
D)tubes
Q26: The ore from which aluminium is extracted
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