Miscellaneous In Metallurgy - Study Mode
[#81] Bainite in iron-carbon alloys has a . . . . . . . . structure.
Correct Answer
(B) Non-lamellar
[#82] It takes 10 hours to homogenize an alloy at 1273 K. The time required (in hours) to achieve the same extent of homogenization at 1373 K is . . . . . . . . Given: Diffusivity, D 1373 K = 10 -18 m 2 s -1 and D 1273 K = 10 -19 m 2 s -1
Correct Answer
(B) 1
[#83] Typical examples of heat conduction through cylindrical tubes are not found in
Correct Answer
(D) Aircrafts
[#84] In mechanical working processes, lubricants don't . . . . . . . .
Correct Answer
(C) decrease the hardness of work piece
[#85] The structure of Polymer . . . . . . . .
Correct Answer
(A) Amorphous