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Mechanical Engineering - Engineering Materials

Exercise : Engineering Materials - Section 5
16.
The high speed steel has __________ percentage of tungsten.
maximum
minimum
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
The essential constituent of a hardened steel is
pearlite
austenite
martensite
troostite
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
The cutting tools are made from
nickel steel
chrome steel
nickel-chrome steel
high speed steel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
The maximum solubility of carbon in austenite is 1.7% at 1130° C.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
In a close packed hexagonal space lattice, there are
nine atoms out of which eight atoms are located at the corners of the cube and one atom at its centre
twelve atoms, all of which are located at the twelve corners of a hexagonal prism
fourteen atoms out of which eight atoms are located at the coners of the cube and six atoms at the centres of six faces
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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