Question: Alpha iron is stable __________ °C.
[A].above 1403
upto 910
above 1800
between 910 & 1403
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Galvanised iron is
Question: Galvanised iron is
[A].harder
protected from rusting
alumina coated iron
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
White cast iron as compared to grey cast iron is
Question: White cast iron as compared to grey cast iron is
[A].more durable
very brittle
very hard
all (a), (b) & (c)
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Atmospheric corrosion of metals result from their
Question: Atmospheric corrosion of metals result from their
[A].slow oxidation
fast oxidation
fast hydration
slow dehydration
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
__________ iron is produced, when molten pig iron is allowed to cool gradually.
Question: __________ iron is produced, when molten pig iron is allowed to cool gradually.
[A].White cast
Grey cast
Wrought
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
__________ iron is produced, when molten pig iron is chilled suddenly.
Question: __________ iron is produced, when molten pig iron is chilled suddenly.
[A].White cast
Grey cast
Wrought
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Corrosion involves exchange of electrons in __________ corrosion.
Question: Corrosion involves exchange of electrons in __________ corrosion.
[A].chemical
electrochemical
both (a) & (b)
neither (a) nor (b)
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Iron rust is
Question: Iron rust is
[A].ferrous oxide.
hydrated ferric oxide.
powdered iron.
ferric sulphide.
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
The apex of an equilateral-triangular coordinate (in ternary liquid system) represents a/an
Question: The apex of an equilateral-triangular coordinate (in ternary liquid system) represents a/an
[A].pure component
binary mixture
ternary mixture
insoluble binary system
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Carbon is present in steel wholly in the
Question: Carbon is present in steel wholly in the
[A].combined form.
free state as graphite.
both (a) and (b).
neither (a) nor (b).
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.