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Strength of Materials MCQ Question with Answer

Strength of Materials MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 36
A steel bar of 5 mm is heated from 25°C to 45°C and it is free to expand. The bar will induce

No stress
Shear stress
Tensile stress
Compressive stress
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Question No : 37
A bar of copper and steel form a composite system, which is heated to a temperature of 40°C. The stress induced in the copper bar will be

Tensile
Compressive
Shear
Zero
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Question No : 38
When a body is subjected to two equal and opposite pushes, as a result of which the body tends to reduce its length, then

The stress and strain induced is compressive
The stress and strain induced is tensile
Both A and B is correct
None of these
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Question No : 39
Which of the following statement is correct?

The stress is the pressure per unit area
The strain is expressed in mm
Hook's law holds good upto the breaking point
Stress is directly proportional to strain within elastic limit
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Question No : 40
The rivets are used for __________ fastenings.

Permanent
Temporary
Semi-permanent
None of these
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Question No : 41
The maximum bending moment for the beam shown in the below figure, is

wl²/3√3
wl²/6√3
wl²/9√3
wl²/12√3
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Question No : 42
The shear force diagram for a simply supported beam carrying a uniformly distributed load of w per unit length, consists of

One right angled triangle
Two right angled triangles
One equilateral triangle
Two equilateral triangles
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