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.Management Sciences
A. cementite
B. free carbon
C. flakes
D. spheroids
E. nodular aggregates of graphite
Related Mcqs:
- For the allotropic forms of iron, the points of arrest are __________________?
- A. the points where no further change oc-curs B. constant for all metals C. the points where there is no further flow of metal D. the points of discontinuity E. the points where major changes take place...
- Carbon in iron is an example of__________________?
- A. substitutional solution B. interstitial solid solution C. intermetallic compounds D. all of the above E. none of the above....
- The surface hardness of the following order is achieved by nitriding operation__________________?
- A. 600 VPN B. 1500 VPN C. 1000 to 1100 VPN D. 250 VPN E. 2000 VPN...
- 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...
- Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio _____________________?
- A. 50 : 20 : 20 : 10 B. 40 : 30 : 20 : 10 C. 50 : 20 : 10 : 20 D. 30 : 20 : 30 : 20 E. 50 : 10 : 20 : 20...
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