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 9 of 10

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Q81.
A bar having two sections of cross sectional area of 100mm² and 200mm² respectively. The length of both the sections is 200mm. What will be the total strain in the bar if it is subjected to axial force of 100kN and E = 10⁵ N/mm²?

a.

0.010

b.

0.015

c.

0.020

d.

0.030

Discuss
Answer: (b).0.015
Q82.
A brass bar, having cross sectional area of 150mm², is subjected to axial force of 50kN. What will be the total strain of bar if E= 1.05 x 104 N/mm²?

a.

0.062mm

b.

0.025mm

c.

0.068mm

d.

0.054mm

Discuss
Answer: (d).0.054mm
Q83.
A composite bar of two sections of each of length 100mm, 150mm. When force is applied, all the sections causes an elongation of 0.1mm. What will the resultant strain in the bar?

a.

0.0016

b.

0.00154

c.

0.00256

d.

0.0020

Discuss
Answer: (a).0.0016
Q84.
If the given forces P₁, P₂, P₃, P₄ and P₅ which are co planar and concurrent are such that the force polygon does not close, then the system will

a.

Be in equilibrium

b.

Always reduce to a resultant force

c.

Always reduce to a couple

d.

Always be in equilibrium and will always reduce to a couple

Discuss
Answer: (b).Always reduce to a resultant force
Q85.
If a bar of sections of two different length and different diameters are in a line and P load is acting axially on them then what will be the change in length of the bar?

a.

P/E x (L₁ + L₂)

b.

P/E x (A₁/L₁ + A₂/ L₂)

c.

P/E x (L₁/A₁ + L₂/A₂)

d.

E/P x (L₁/A₁ + L₂/A₂)

Discuss
Answer: (c).P/E x (L₁/A₁ + L₂/A₂)
Q86.
How does the elastic constant varys with the elongation of body?

a.

The elastic constant is directly proportional to the elongation

b.

The elastic constant is inversely proportional to the elongation

c.

The elongation does not depends on the elastic constant

d.

None of these

Discuss
Answer: (b).The elastic constant is inversely proportional to the elongation
Q87.
A composite rod is 1000mm long, its two ends are 40 mm² and 30mm² in area and length are 400mm and 600mm respectively. If the rod is subjected to an axial tensile load of 1000N, what will be its total elongation(E = 200GPa)?

a.

0.130m

b.

0.197mm

c.

0.160mm

d.

0.150mm

Discuss
Answer: (a).0.130m
Q88.
A mild steel wire 5mm in diameter and 1m ling. If the wire is subjected to an axial tensile load 10kN what will be its extension?

a.

2.55mm

b.

3.15mm

c.

2.45mm

d.

2.65mm

Discuss
Answer: (a).2.55mm
Q89.
A composite rod is 1000mm long, its two ends are 40mm² and 30mm² in area and length are 300mm and 200mm respectively. The middle portion of the rod is 20mm² in area. If the rod is subjected to an axial tensile load of 1000N, what will be its total elongation (E = 200GPa)?

a.

0.145mm

b.

0.127mm

c.

0.187mm

d.

0.196mm

Discuss
Answer: (d).0.196mm
Q90.
A rod of two sections of area 625mm² and 2500mm² of length 120cm and 60cm respectively. If the load applied is 45kN then what will be the elongation (E = 2.1x 10⁵ N/mm²)?

a.

0.462mm

b.

0.521mm

c.

0.365mm

d.

0.514mm

Discuss
Answer: (a).0.462mm
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