Question: An eutectoid steel consists of
[A].wholly pearlite
wholly austenite
pearlite and ferrite
pearlite and cementite
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Engineering Materials
A steel with 0.8% carbon and 100% pearlite is called
Question: A steel with 0.8% carbon and 100% pearlite is called
[A].eutectoid steel
hypo-eutectoid steel
hyper-eutectoid steel
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Iron-carbon alloys containing carbon __________ 4.3% are known as hyper-eutectic cast irons.
Question: Iron-carbon alloys containing carbon __________ 4.3% are known as hyper-eutectic cast irons.
[A].equal to
less than
more than
[A].
[B].
[C].
Answer: Option C
Explanation:
No answer description available for this question.
Iron-carbon alloys containing 4.3% carbon are known as hypo-eutectic cast irons.
Question: Iron-carbon alloys containing 4.3% carbon are known as hypo-eutectic cast irons.
[A].Correct
Incorrect
[A].
[B].
Answer: Option B
Explanation:
No answer description available for this question.
Iron-carbon alloys containing 1.7 to 4.3% carbon are known as
Question: Iron-carbon alloys containing 1.7 to 4.3% carbon are known as
[A].eutectic cast irons
hypo-eutectic cast irons
hyper-eutectic cast irons
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
For a steel containing 0.8% carbon
Question: For a steel containing 0.8% carbon
[A].there is no critical point
there is only one critical point
there are two critical points
there can be any number of critical points
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Delta-iron occurs between the temperature range of
Question: Delta-iron occurs between the temperature range of
[A].400°C to 600°C
600°C to 900°C
900°C to 1400°C
1400°C to 1530°C
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Gamma-iron occurs between the temperature range of
Question: Gamma-iron occurs between the temperature range of
[A].400°C to 600°C
600°C to 900°C
900°C to 1400°C
1400°C to 1530°C
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
A steel with carbon above 0.8% is known as hyper-eutectoid steel.
Question: A steel with carbon above 0.8% is known as hyper-eutectoid steel.
[A].Agree
Disagree
[A].
[B].
Answer: Option A
Explanation:
No answer description available for this question.
A steel with carbon __________ is known as hypo-eutectoid steel.
Question: A steel with carbon __________ is known as hypo-eutectoid steel.
[A].0.8%
below 0.8%
above 0.8%
[A].
[B].
[C].
Answer: Option B
Explanation:
No answer description available for this question.