Delta iron occurs at temperature of_______________?
A. room temperature
B. above melting point
C. between 1400°C and 1539°C
D. between 910°C and 1400°C
E. none of the above
A. room temperature
B. above melting point
C. between 1400°C and 1539°C
D. between 910°C and 1400°C
E. none of the above
A. B.C.C. crystalline structure
B. F.C.C. crystal structure
C. H.C.P. structure
D. a complex cubic structure
E. orthorhombic crystalline structure
A. modulus of elasticity is fairly low
B. wear resistance is very good
C. fatigue strength is not high
D. creep strength limits its use to fairly low temperatures
E. corrosion resistance is good
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
A. cast iron
B. pig iron
C. wrought iron
D. malleable iron
E. white iron
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
A. 70% copper and 30% zinc
B. 90% copper and 10% tin
C. 85-92% copper and rest tin with little lead and nickel
D. 70-75% copper and rest tin
E. 90% copper and 10% zinc