Metallurgy Test Questions - Set 4

1)   Which of the following photographic papers is used in sulphur printing technique?

a. Bronze bromide paper
b. Copper bromide paper
c. Silver bromide paper
d. None of the above
Answer  Explanation 

ANSWER: Silver bromide paper

Explanation:
No explanation is available for this question!


2)   The rule used to determine composition of various phases in a phase diagram is _____

a. Gibb's phase rule
b. Lever rule
c. Both a. and b.
d. None of the above
Answer  Explanation 

ANSWER: Lever rule

Explanation:
No explanation is available for this question!


3)   The process of lowering the temperature of a liquid below its freezing point is known as _____

a. supercooling
b. undercooling
c. both a. and b.
d. none of the above
Answer  Explanation 

ANSWER: both a. and b.

Explanation:
No explanation is available for this question!


4)   Which of the following is an etching reagent used for carbon steels?

a. Nitric acid
b. Picric acid
c. Both a. and b.
d. None of the above
Answer  Explanation 

ANSWER: Both a. and b.

Explanation:
No explanation is available for this question!


5)   Eutectoid steel contains _____

a. 0.4 % Carbon
b. 0.8 % Carbon
c. 1.2 % Carbon
d. 2.2 % Carbon
Answer  Explanation 

ANSWER: 0.8 % Carbon

Explanation:
No explanation is available for this question!


6)   The mixture of α-ferrite and cementite is called as _______

a. Ledeburite
b. Pearlite
c. Both a. and b.
d. None of the above
Answer  Explanation 

ANSWER: Pearlite

Explanation:
No explanation is available for this question!


7)   Which of the following neutral elements neither form carbides nor cause graphitization?

a. Aluminium
b. Chromium
c. Cobalt
d. Copper
Answer  Explanation 

ANSWER: Cobalt

Explanation:
No explanation is available for this question!


8)   Which of the following alloying elements prevent formation of austenite in high chromium steels?

a. Boron
b. Carbon
c. Manganese
d. Titanium
Answer  Explanation 

ANSWER: Titanium

Explanation:
No explanation is available for this question!


9)   Which of the following alloying elements are deoxidizers?

a. Aluminium
b. Silicon
c. Both a. and b.
d. None of the above
Answer  Explanation 

ANSWER: Both a. and b.

Explanation:
No explanation is available for this question!


10)   Which of the following phase is obtained as the end product, after complete heat treatment cycle in austempering process?

a. Austenite
b. Bainite
c. Martensite
d. Pearlite
Answer  Explanation 

ANSWER: Bainite

Explanation:
No explanation is available for this question!