Test: Mechanical Properties - 2 | 10 Questions MCQ Test Engineering Materials Mechanical Engineering

QUESTION: 1

Superplastic behaviour is observed in

A.
Steel and Cast iron
B.
Aluminium, Zinc and Magnesium
C.
Bubble gum, Glass and Thermoplastics
D.
Cement and Bricks

Solution:

QUESTION: 2

It refers to the capability of some materials to undergo very large elongation before failure which can be of the order of few hundered percent to as much as 200 percent. This is in context of

A.
Plasticity
B.
Elasticity
C.
Superplasticity
D.
Superelasticity

Solution:

QUESTION: 3

Match the List-I (Property) with List-ll (Testing machine):
List-I
A. Tensile strength
B. Impact strength
C. Bending strength
D. Fatigue strength
List-ll
1. Rotating bending machine
2. Three-point loading machine
3. Universal testing machine
4. Izod testing machine

A.
A
B.
B
C.
C
D.
D

Solution:

QUESTION: 4

During tensile-testing of a specimen using a Universal Testing Machine, the parameters actually measured include.

A.
true stress and true strain
B.
Poisson’s ratio and Young’s modulus
C.
engineering stress and engineering strain
D.
load and elongation

Solution:

QUESTION: 5

Increasing temperature has the following effects on stress-strain curves:
1. It increases ductility and toughness.
2. It increases ductility and reduces toughness,
3. It lowers yield stress and modulus of elasticity.
4. It increases yield stress but modulus of elasticity remains unaffected.
Which of the above statements are true?

A.
1 only
B.
1 and 3
C.
2 and 4
D.
3 and 4

Solution:

QUESTION: 6

Which of the following phenomenon is not used in the measurement of hardness?

A.
Wear
B.
Fracture
C.
Scratch
D.
indentation

Solution:

QUESTION: 7

Which hardness method can measure hardness of a grain?

A.
Knoop
B.
Shore
C.
Rockwell
D.
Vickers

Solution:

QUESTION: 8

The fatigue strength of mild steel is

A.
equal to its yield strength
B.
lower than its yield strength
C.
equal to its tensile strength
D.
lower than its tensile strength

Solution:

QUESTION: 9

In a tensile specimen, the elongation at the time of fracture is

A.
localized near the ends
B.
localized in the region of necking
C.
non-localized before yielding
D.
delocalized in the center of the length

Solution:

QUESTION: 10

For a tensile test, it can be demonstrated that necking begins at

A.
B.
C.
D.

Solution:

Test: Mechanical Properties - 2

10 Questions MCQ Test Engineering Materials | Test: Mechanical Properties - 2

Superplastic behaviour is observed in

It refers to the capability of some materials to undergo very large elongation before failure which can be of the order of few hundered percent to as much as 200 percent. This is in context of

Match the List-I (Property) with List-ll (Testing machine):
List-I
A. Tensile strength
B. Impact strength
C. Bending strength
D. Fatigue strength
List-ll
1. Rotating bending machine
2. Three-point loading machine
3. Universal testing machine
4. Izod testing machine

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