Explore topic-wise MCQs in Materials Science.

This section includes 25 Mcqs, each offering curated multiple-choice questions to sharpen your Materials Science knowledge and support exam preparation. Choose a topic below to get started.

1.

Necking means local deformation of a ductile material subjected to tensile loading.

A. True
B. False
Answer» B. False
Discussion
2.

Ceramics generally undergo ductile fracture.

A. True
B. False
Answer» C.
Discussion
3.

Cup and cone type fracture is a ____________ fracture.

A. Brittle
B. Ductile
C. Fatigue
D. De-cohesive
Answer» C. Fatigue
Discussion
4.

___ metals and their alloys may fail by shear or cleavage.

A. FCC
B. HCP
C. BCC
D. SC
Answer» D. SC
Discussion
5.

In _____________ fracture, the crack grows at a slow pace and a lot of plastic deformation occurs.

A. Ductile
B. Brittle
C. Fatigue
D. De-cohesive
Answer» B. Brittle
Discussion
6.

Material subjected to only tensile force even during necking.

A. True
B. False
Answer» C.
Discussion
7.

____METALS_AND_THEIR_ALLOYS_MAY_FAIL_BY_SHEAR_OR_CLEAVAGE.?$

A. FCC
B. HCP
C. BCC
D. SC
Answer» D. SC
Discussion
8.

Ceramics generally undergo ductile fracture.$

A. True
B. False
Answer» C.
Discussion
9.

Cup_and_cone_type_fracture_is_a______________fracture.$

A. Brittle
B. Ductile
C. Fatigue
D. De-cohesive
Answer» C. Fatigue
Discussion
10.

Necking_means_local_deformation_of_a_ductile_material_subjected_to_tensile_loading.

A. True
B. False
Answer» B. False
Discussion
11.

What is cleavage plane for BCC structure?

A. {1 0 0}
B. {1 1 1}
C. {0 0 0 1}
D. {1 1 0}
Answer» B. {1 1 1}
Discussion
12.

Material subjected to only tensile force even during necking?

A. True
B. False
Answer» C.
Discussion
13.

The planes along with which fracture takes place in metals are known as ____________

A. Slip plane
B. Cleavage plane
C. Twin plane
D. Basal plane
Answer» C. Twin plane
Discussion
14.

What is the amount of strain in a stable neck is called?

A. Natural draw ratio
B. Forced draw ratio
C. Poisson’s ratio
D. Physical activity ratio
Answer» B. Forced draw ratio
Discussion
15.

In what matter ductile fracture occurs?

A. Trans granular
B. Intra granular
C. Catastrophically
D. Shear fracture
Answer» B. Intra granular
Discussion
16.

After which point is necking observed?

A. Ultimate strength
B. Yield strength
C. Elastic point
D. Fracture point
Answer» B. Yield strength
Discussion
17.

Ductile fracture generally occurs in ____________

A. Metals
B. Ceramics
C. Plastics
D. Composites
Answer» B. Ceramics
Discussion
18.

Which of the following cannot be a reason for ductile failure?

A. Error in design
B. Improper material
C. Improper manufacturing techniques
D. Unforeseen operating condition
Answer» E.
Discussion
19.

What appearance does ductile fracture under microscope give?

A. Irregular and rough
B. Smooth
C. Plate like
D. Shiny
Answer» B. Smooth
Discussion
20.

Ductile fracture happens after extensive plastic deformations.

A. True
B. False
Answer» B. False
Discussion
21.

What term is referred to the failure of highly ductile materials?

A. Ductile rupture
B. Orange peel
C. Patenting
D. Buckling
Answer» B. Orange peel
Discussion
22.

At the point of necking which of the following is false?

A. Strain hardening occurs at this point
B. Cross sectional area increases
C. Cross sectional area decreases
D. Strength increases
Answer» C. Cross sectional area decreases
Discussion
23.

___________ amount of energy strain is required for ductile fracture.

A. Higher
B. Lower
C. Intermediate
D. Can’t say
Answer» B. Lower
Discussion
24.

In ductile fracture, at what angle to the tensile axis does the crack propagate outwardly to the surface of the material?

A. 90°
B. 30°
C. 45°
D. 15°
Answer» D. 15¬¨¬®‚Äö√†√ª
Discussion
25.

Necking occurs in which of the following fractures?

A. Ductile fractures
B. Brittle fracture
C. Fatigue
D. It doesn’t occur during fracture
Answer» E.
Discussion