Material Science And Metallurgy (3131904) MCQs

MCQs of Heat Treatment of Steel

Showing 1 to 10 out of 40 Questions
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1.

The purpose of heat treatment is

(a)

Change the mechanical property of steel
(b)

 To change the internal structure of steel
(c)

To change the appearance of the component
(d)

 To change the chemical property of steel 
Answer:

Option (a)

2.

Heat treatment of metal is necessary

(a)

To produce certain desired properties 
(b)

To make good appearance on the component
(c)

To increase strength of the metal 
(d)

To make the metal rust proof 
Answer:

Option (a)

3.

The instrument used to measure high temperature in the furnace is

(a)

Thermometer
(b)

Barometer
(c)

Colorimeter
(d)

Pyrometer
Answer:

Option (d)

4.

What is the main purpose of annealing ?

(a)

To improve machinability
(b)

To improve magnetism
(c)

To increase hardness
(d)

To increase toughness
Answer:

Option (b)

5.

Which one of the following processes by which steel is heated to the required temperature and then cooled slowly in the furnace itself ?

(a)

Tempering
(b)

Hardning
(c)

Nitriding
(d)

Annealing
Answer:

Option (d)

6.

The process used for relieving the internal stresses previously set up in the Metal and for increasing the machinability of steel, is

(a)

normalising
(b)

full annealing
(c)

process annealing
(d)

spheroidising
Answer:

Option (c)

7.

The purpose of normalizing steel is to

(a)

Remove induced stresses
(b)

Improve machinability
(c)

Soften the steel
(d)

Soften the steel
Answer:

Option (a)

8.

Normalising of steel is done to

(a)

refine the grain structure
(b)

remove strains caused by cold working
(c)

remove dislocations caused in the internal structuure due to hot working
(d)

all of the above
Answer:

Option (d)

9.

The heat treatment process used for castings is

(a)

carburising
(b)

normalising
(c)

annealing
(d)

tempering
Answer:

Option (b)

10.

When the steel is normalised, its

(a)

yield point increases
(b)

ductility decreases
(c)

ultimate tensile strength increases
(d)

all of these
Answer:

Option (d)

Showing 1 to 10 out of 40 Questions
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