Exercise: Engineering Materials

Questions for: Engineering Materials

Nodular cast iron is produced by adding __________ to the molten cast iron.
A:
nickel
B:
chromium
C:
copper
D:
magnesium
Answer: D
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The lower critical temperature
A:
decreases as the carbon content in steel increases
B:
increases as the carbon content in steel increases
C:
is same for all steels
D:
depends upon the rate of heating
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ferrite and pearlite makes the steel soft and ductile.
A:
Agree
B:
Disagree
C:
D:
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
In full annealing, the hypo-eutectoid steel is heated from 30° C to 50° C above the upper critical temperature and then cooled
A:
in still air
B:
slowly in the furnace
C:
suddenly in a suitable cooling medium
D:
any one of these
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The hardness of steel increases if it contains
A:
pearlite
B:
ferrite
C:
cementite
D:
martensite
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz