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Mechanical Engineering - Engineering Materials

Exercise : Engineering Materials - Section 5
31.
Admirality gun metal contains
60% copper, 35% zinc and 5% manganese
76% copper, 20% silicon and 4% zinc
82% copper, 12% zinc and 6% manganese
88% copper, 10% tin and 2% zinc
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
The percentage of phosphorus is phosphor bronze is
0.1
1
11.1
98
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
In high speed steels, vanadium adds to the property of red hardness and tungsten and chromium add to high wear resistance.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
For the pipe fitting like elbow, tee, union etc., which of the following is preferred?
Pig iron
Malleable iron
Spheroidal graphite cast iron
High carbon steel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Chilled cast iron is produced
by adding magnesium to molten cast iron
by quick cooling of molten cast iron
from white cast iron by annealing process
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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