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Mechanical Engineering - Engineering Materials

Exercise : Engineering Materials - Section 3
16.
The steel produced by cementation process is known as __________ steel.
blister
crucible
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Duralumin has better strength than Y-alloy at high temperature.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Normalising of steel is done to
refine the grain structure
remove strains caused by cold working
remove dislocations caused in the internal structuure due to hot working
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
A steel containing 12 to 14% chromium and 0.12 to 0.35% carbon is called martensitic stainless steel.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite.
equal to
less than
more than
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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