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Heat Treatment(Engineering > Engineering Materials ) Questions and Answers
Home
Topic
Engineering
Engineering Materials
Heat Treatment
Question 1.
Which of the following factors does not influence the variety and quality of metal?
Rate of heating and cooling
Quenching medium
Furnace
Grain size
Explanation:-
Answer: Option D. ->
Grain size
Answer:
(d).
Grain size
Question 2.
For full annealing of hypoeutectoid steels, they are heated in a range above __________
153-250°C
273-350°C
551-770°C
723-910°C
Explanation:-
Answer: Option D. ->
723-910°C
Answer:
(d).
723-910°C
Question 3.
How does the rate of cooling affect the hardness of the metal?
Slow cooling, hard material
Slow cooking, soft material
Rapid cooling, soft material
No effective change
Explanation:-
Answer: Option B. ->
Slow cooking, soft material
Answer:
(b).
Slow cooking, soft material
Question 4.
Full annealing is applied to which kind of materials?
Steel castings
Steel wires
High carbon steels
Sheet products
Explanation:-
Answer: Option A. ->
Steel castings
Answer:
(a).
Steel castings
Question 5.
Which of the following is not a stage of annealing?
Heating
Soaking
Tempering
Quenching
Explanation:-
Answer: Option C. ->
Tempering
Answer:
(c).
Tempering
Question 6.
Low temperature tempering occurs at __________
50-150°C
150-250°C
350-450°C
500-650°C
Explanation:-
Answer: Option B. ->
150-250°C
Answer:
(b).
150-250°C
Question 7.
Temper embrittlement occurs at a temperature __________
Below 0°C
Above 250°C
Above 575°C
Above 1000°C
Explanation:-
Answer: Option C. ->
Above 575°C
Answer:
(c).
Above 575°C
Question 8.
Tempering that results in a reduction of toughness is known as __________
Caustic embrittlement
Temper embrittlement
End-temper
Quench-temper embrittlement
Explanation:-
Answer: Option B. ->
Temper embrittlement
Answer:
(b).
Temper embrittlement
Question 9.
Medium temperature tempering develops a ________ structure.
Non-lamellar
Sorbite
Tempered-troostite
Bainite
Explanation:-
Answer: Option C. ->
Tempered-troostite
Answer:
(c).
Tempered-troostite
Question 10.
High temperature tempering develops a ________ structure.
Non-lamellar
Sorbite
Tempered-troostite
Pearlite
Explanation:-
Answer: Option B. ->
Sorbite
Answer:
(b).
Sorbite
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