Exercise: Engineering Materials

Questions for: Engineering Materials

The percentage of phosphorus is phosphor bronze is
A:
0.1
B:
1
C:
11.1
D:
98
Answer: A
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Admirality gun metal contains
A:
60% copper, 35% zinc and 5% manganese
B:
76% copper, 20% silicon and 4% zinc
C:
82% copper, 12% zinc and 6% manganese
D:
88% copper, 10% tin and 2% zinc
Answer: D
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Thermosetting plastics are those materials which
A:
are formed into shape under heat and pressure and results in a permanently hard product
B:
do not become hard with the application of heat and pressure and no chemical change occurs
C:
are flexible and can withstand considerable wear under suitable conditions
D:
are used as a friction lining for clutches and brakes
Answer: A
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The delta-iron possesses a body centred cubic space lattice.
A:
Correct
B:
Incorrect
C:
D:
Answer: A
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Which of the following solids are malleable and ductile?
A:
Ionic solids
B:
Covalent solids
C:
Metallic solids
D:
none of these
Answer: C
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