Test: Strength of Materials - 1 | 25 Questions MCQ Test Mechanical Engineering SSC JE (Technical) Mechanical Engineering

QUESTION: 1

Stress can be defined as :-

A.
Internal Resisting force (IRF)
B.
Magnitude of IRF
C.
IRF × cross sectional area
D.
IRF × surface area

Solution:

QUESTION: 2

In som which of the following curve is used for designing

Answer the question about the following graph

A.
Load Deformation curve
B.
True stress strain curve
C.
Engineering stress strain curve
D.
Both (b) and (c)

Solution:

QUESTION: 3

The above graph is relation between stress and strain for:

A.
Brittle Material
B.
Ductile material
C.
Structural steel
D.
All of the above

Solution:

QUESTION: 4

In the above graph which of the following represents ultimate tensile strength.

A.
B
B.
C
C.
F
D.
G

Solution:

QUESTION: 5

In a material is under cyclic load we used endurance strength as designing criterion. The failure due to such loading is because of :

A.
Fatigue
B.
Shear
C.
Compression
D.
Tension.

Solution:

QUESTION: 6

Modulus of toughness is area under –

A.
Load Deformation curve upto elastic limit.
B.
Stress strain curve upto elastic limit.
C.
Load Deformation curve upto fracture point.
D.
Stress strain curve upto fracture point.

Solution:

QUESTION: 7

If the percentage of carbon in steel increases which of the following properties will increase
i. Ductility
ii. Brittleness
iii. Strength
iv. Toughness
v. Hardness

A.
i and iv
B.
i, iv, v
C.
ii, iii, v
D.
i, ii, iii, iv , v

Solution:

QUESTION: 8

A square steel bar of 50 mm side and 5m length absorbs a strain energy of 100 joule when stretched upto its elastic limit. The modulus of resiliance of the bar is :