Stresses in Members MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Stresses in Members, a fundamental topic in the field of Mechanics of Materials. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Stresses in Members MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Stresses in Members mcq questions that explore various aspects of Stresses in Members problems. Each MCQ is crafted to challenge your understanding of Stresses in Members principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanics of Materials tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Stresses in Members MCQs are your pathway to success in mastering this essential Mechanics of Materials topic.

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Stresses in Members MCQs | Page 8 of 10

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Q71.
A composite bar of two sections of equal length and equal diameter is under an axial pull of 10kN. What will be the stresses in the two sections?

a.

3.18 N/mm²

b.

2.21 N/mm²

c.

3.45 N/mm²

d.

2.14 N/mm²

Discuss
Answer: (a).3.18 N/mm²
Q72.
A composite bar of two sections of unequal length and equal diameter is under an axial pull of 10kN. What will be the stresses in the two sections?

a.

2.145 N/mm²

b.

3.18 N/mm²

c.

1.245 N/mm²

d.

2.145 N/mm²

Discuss
Answer: (b).3.18 N/mm²
Q73.
A composite bar of two sections of equal length and given diameter is under an axial pull of 15kN. What will be the stresses in the two sections in N/mm²?

a.

190.9 and 84.88

b.

190.9 and 44.35

c.

153.45 and 84088

d.

153045 and 44.35

Discuss
Answer: (a).190.9 and 84.88
Q74.
Which law states the when a number of loads are acting on a body, the resulting strain, according to principle of superposition, will be the algebraic sum of strains caused by individual loads?

a.

Hooke’s law

b.

Principle of superposition

c.

Lami’s theorem

d.

Strain law

Discuss
Answer: (b).Principle of superposition
Q75.
How the total strain in any body subjected to different loads at different sections can be calculated?

a.

The resultant strain is the algebraic sum of the individual strain

b.

The resultant strain calculated by the trigonometry

c.

The resultant will be through Lame’s theorem

d.

None of the mentioned

Discuss
Answer: (a).The resultant strain is the algebraic sum of the individual strain
Q76.
Three sections in a beam are of equal length of 100mm. All three sections are pulled axially with 50kN and due to it elongated by 0.2mm. What will be the resultant strain in the beam?

a.

0.002

b.

0.004

c.

0.006

d.

0.020

Discuss
Answer: (c).0.006
Q77.
Two sections in a bar of length 10cm and 20cm respectively are pulled axially. It causes an elongation of 0.2mm and 0.4mm respectively in each section. What will be the resultant strain in the bar?

a.

0.004

b.

0.002

c.

0.003

d.

0.006

Discuss
Answer: (a).0.004
Q78.
A composite bar have four sections each of length 100mm, 150mm, 200mm, 250mm. When force is applied, all the sections causes an elongation of 0.1mm. What will the resultant strain in the bar?

a.

0.0012

b.

0.00154

c.

0.00256

d.

0.0020

Discuss
Answer: (c).0.00256
Q79.
A brass bar, having cross sectional area of 100mm², is subjected to axial force of 50kN. The length of two sections is 100mm and 200mm respectively. What will be the total elongation of bar if E = 1.05 x 10⁵ N/mm² ?

a.

1.21mm

b.

2.034mm

c.

2.31mm

d.

1.428mm

Discuss
Answer: (d).1.428mm
Q80.
A composite bar having two sections of cross-sectional area 100mm² and 200mm² respectively. The length of both the sections is 100mm. What will be the total elongation of bar if it is subjected to axial force of 100kN and E = 10⁵ N/mm²?

a.

1.0

b.

1.25

c.

1.5

d.

2.0

Discuss
Answer: (c).1.5
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