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Mechanical Engineering - Engineering Materials

Exercise : Engineering Materials - Section 2
6.
In flame hardening, oxy-acetylene flame is used.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
Which of the following statements are true for annealing of steels?
Steels are heated to 500 to 700° C
Cooling is done slowly and steadily
Internal stresses are relieved
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
The ability of a material to undergo large permanent deformation with the application of a tensile force, is called ductility.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Which of the following steel making process is being adopted at Rourkela Steel Plant?
Bessemer process
Open-hearth process
Electric process
L-D process
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
18-4-1 high speed steel contains
vanadium 4%, chromium 18% and tungsten 1%
vanadium 1%, chromium 4% and tungsten 18%
vanadium 18%, chromium 1% and tungsten 4%
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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