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 10 of 10

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Q91.
What will be the elongation of a bar of 1250mm² area and 90cm length when applied a force of 130kN if E = 1.05x 10⁵ N/mm²?

a.

0.947mm

b.

0.891mm

c.

0.845mm

d.

0.745mm

Discuss
Answer: (b).0.891mm
Q92.
A steel bar of 20mm x 20mm square cross-section is subjected to an axial compressive load of 100kN. If the length of the bar is 1m and E=200GPa, then what will be the elongation of the bar?

a.

1.25mm

b.

2.70mm

c.

5.40mm

d.

4.05mm

Discuss
Answer: (a).1.25mm
Q93.
A solid uniform metal bar is hanging vertically from its upper end. Its elongation will be _________

a.

Proportional to L and inversely proportional to D²

b.

Proportional to L² and inversely proportional to D

c.

Proportional of U but independent of D

d.

Proportional of L but independent of D

Discuss
Answer: (a).Proportional to L and inversely proportional to D²
Q94.
A member ABCD is subjected to points load P₁=45kN, P₂, P₃=450kN and P₄=130kN. What will be the total elongation of the member, assuming the modulus of elasticity to be 2.1x10⁵N/mm². The cross sectional area is 625mm, 2500mm, 1250mm respectively.

a.

0.4914mm

b.

0.4235mm

c.

0.4621mm

d.

0.4354mm

Discuss
Answer: (a).0.4914mm
Q95.
A rod, which tapers uniformly from 5cm diameter to 3cm diameter in a length of 50cm, is subjected to an axial load of 6000N. if E = 2,00,000 N/mm², what will be the extension of the rod?

a.

0.00114cm

b.

0.00124cm

c.

0.00127cm

d.

0.00154cm

Discuss
Answer: (c).0.00127cm
Q96.
A bar is in two sections having equal lengths. The area of cross section of 1st is double that of 2nd. if the bar carries an axial load of P, then what will be the ratio of elongation in section 2nd to section 1st ?

a.

1/2

b.

2

c.

4

d.

1/4

Discuss
Answer: (b).2
Q97.
A round bar made of same material consists of 4 parts each of 100mm length having diameters of 40mm, 50mm, 60mm and 70mm, respectively. If the bar is subjected to an axial load of 10kN, what will be the total elongation of the bar in mm?

a.

0.4/πE ( 1/16 + 1/25 + 1/36 + 1/49)

b.

4/πE ( 1/16 + 1/25 + 1/36 + 1/49)

c.

2/πE ( 1/16 + 1/25 + 1/36 + 1/49)

d.

40/πE ( 1/16 + 1/25 + 1/36 + 1/49)

Discuss
Answer: (d).40/πE ( 1/16 + 1/25 + 1/36 + 1/49)
Q98.
A composite bar consists of a bar enclosed inside a tune of another material when compressed under a load as whole through rigid collars at the end of the bar. What will be the equation of compatibility?

a.

W₁ + W₂ = W

b.

W₁ + W₂ = constant

c.

W₁/A₁E₁ = W₂/A₂E₂

d.

W₁/A₁E₂ = W₂/A₂E₁

Discuss
Answer: (a).W₁ + W₂ = W
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