Heat treatment process used for casting is

1.  Normalizing

2.  Annealing

3.  Tempering

4.  Hardening

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4
Correct Answer :

Normalizing


Explanation :
No Explanation available for this question

The hypo-eutectoid steel is heated 300C to 500 C above the upper critical temperature and then cooled slowly in the furnace, in

1.  Normalizing

2.  Full annealing

3.  Process annealing

4.  Hardening

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4
Correct Answer :

Full annealing


Explanation :
No Explanation available for this question

To relive internal stresses previously set up in the metal and to increase machinability of steel, process used is

1.  Normalizing

2.  Full annealing

3.  Process annealing

4.  Hardening

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4
Correct Answer :

Process annealing


Explanation :
No Explanation available for this question

Annealing of steel is done to

1.  Soften the metal

2.  Improve machinability

3.  Refine grain structure

4.  Relieve internal stresses

5.  All of these

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5
Correct Answer :

All of these


Explanation :
No Explanation available for this question

The hypo-eutectoid steel is heated from 300 C to 500 C above the upper critical temperature and then cooled suddenly in a suitable cooling medium such as brine water or oil, in the process

1.  Normalizing

2.  Annealing

3.  Tempering

4.  Hardening

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4
Correct Answer :

Hardening


Explanation :
No Explanation available for this question

Process of production of articles having a soft ductile interior and a very hard surface, is called

1.  Hardening

2.  Tempering

3.  Case-hardening

4.  Annealing

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4
Correct Answer :

Case-hardening


Explanation :
No Explanation available for this question

Cases hardening process is

1.  Carburizing

2.  Cyaniding

3.  Nitrating

4.   All of these

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4
Correct Answer :

All of these


Explanation :
No Explanation available for this question

Process of inducing carbon to low carbon steel to get a hard surface, is called

1.  Carburizing

2.  Cyaniding

3.  Nitriding

4.  Flame hardening

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4
Correct Answer :

Carburizing


Explanation :
No Explanation available for this question

Carburizing is done on steel with carbon percentage

1.  0.15%

2.  0.7%

3.  1.5%

4.  2%

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4
Correct Answer :

0.15\%


Explanation :
No Explanation available for this question

Process of adding carbon and nitrogen to increase hardness at the surface is known as

1.  Carburizing

2.  Cyaniding

3.  Nitriding

4.  None of these

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4
Correct Answer :

Cyaniding


Explanation :
No Explanation available for this question
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