1. Maximum bending moment for a simply supported beam supporting U.D.L _____.

[A] WL^2 /4
[B] WL^2/8
[C] WL^2/36
[D] WL/2

Answer: Option B


2. The material in which large deformation is possible before the absolute failure by rupture takes place is known as _____.

[A] Elastic
[B] Plastic
[C] Ductile
[D] Elastic

Answer: Option C

 

3. Every material obeys the Hook’s law within its _____.

[A] Plastic Limit
[B] Elastic Limit
[C] Deflection limit
[D] Limit of Proportionality

Answer: Option D


4. The least possible Moment of Inertia for a rectangular section 20mm x 90 mm about any axis is
cm^4.

[A] 6
[B] 0
[C] 12
[D] 20

Answer: Option A

 

5. When a rectangular beam is loaded transversely, the maximum compressive stress develops on _____.

[A] Top fibre
[B] Neutral axis
[C] Entire cross section
[D] Bottom fibre

Answer: Option A

 

STRENGTH OF MATERIALS MCQs

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