The compressive and tensile strength of cast iron are
A) 700 N/m2 and 150 N/mm2
B) 600 N/mm2 and 400 N/mm2
C) 415 N/mm2 and 415 N/mm2
D) 400 N/mm2 and 600 N/mm2
Correct Answer:
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Q13: Terracotta means
A)insulated
B)fit for sanitary services
C)good for ornamental
Q14: Water absorption of vitrified tiles is not
Q15: To make terracotta porous, the following is
Q16: By calcining and smelting iron ores, a
Q17: The colour of cast iron is
A)grey
B)white
C)both grey
Q19: For making spiral staircases, ideal material is
A)pig
Q20: Purest form of iron is
A)pig iron
B)cast iron
C)wrought
Q21: Carbon content in wrought iron is
A)0.15%
B)0.25 to
Q22: The ratio of tensile strength to compressive
Q23: Ribs are made on steel wires to
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