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Mechanical Engineering - Engineering Materials

Exercise : Engineering Materials - Section 3
1.
Chromium when added to steel __________ the tensile strength.
does not effect
decreases
increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Which of the following is added in low carbon steels to prevent them from becoming porous?
Sulphur
Phosphorus
Manganese
Silicon
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
A steel with carbon __________ is known as hypo-eutectoid steel.
0.8%
below 0.8%
above 0.8%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Free cutting steels
contain carbon in free from
require minimum cutting force
is used where rapid machining is the prime requirement
can be cut freely
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
The presence of hydrogen in steel causes
reduced neutron absorption cross-section
improved weldability
embrittlement
corrosion resistance
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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