IndiaBIX

Mechanical Engineering - Engineering Materials

Exercise : Engineering Materials - Section 6
31.
Micro-structure of a material is, generally, examined by
naked eye
optical microscope
X-ray techniques
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
The addition of magnesium to cast iron increases its
hardness
ductility and strength in tension
corrosion resistance
creep strength
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Killed steels
have minimum impurity level
are produced by L-D process
have almost zero percentage of phosphorus and sulphur
are free from oxygen
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
The slow cooling of steel from the __________ results in a coarse grained structure.
lower critical point
upper critical point
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Which one of the following sets of constituents is expected in equilibrium cooling of a hyper-eutectoid steel from austenitic state?
Ferrite and pearlite
Cementite and pearlite
Ferrite and bainite
Cementite and martensite
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers