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Mechanics Of materials Exam set

Welcome to your Mechanics Of materials Exam Set 1

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1. 
Every material obeys the Hooke’s law within its

2. 
If the stress produced by a prismatic bar is equal to the working stress, the area of the cross section of the prismatic bar, becomes:

3. 
The limiting values of Poisson’s ratio are:

4. 
When a member is subjected to axial tensile load, the greatest normal stress is equal to:

5. 
The stress in a member subjected to a force is

6. 
The law “stress is proportional to strain within certain limits” is formulated by

7. 
Young`s Modulus is the ratio of the normal stress to the

8. 
As per elastic theory of design the factor of safety is the ratio of

9. 
In a composite bar the load distribution among different materials of which it is made is based on the assumption that all the materials will have

10. 
The stress due to temperature change in a member depends on.

11. 
In the cases of uniaxial tension the angle between the plane carrying maximum shear stress and direction of tensile force will be

12. 
The residual stress in a member is

13. 
The maximum shear stress will be equal to

14. 
The actual breaking stress of a ductile material from a tension test will be

15. 
The difference in placing the end of a beam simply over a support and the supporting end through a hinge on rollers is that the roller support

16. 
A simply supported nea, is subjected to a pure moment. This will be resisted through

17. 
A horizontal beam with both the ends hinged will be statically determinate for this type of loading

18. 
A beam is supported over three rollers lying in the same plane. The beam is stable for

19. 
To difference between B.M values at any two sections will be equal to

20. 
A simply supported beam is subjected to a uniformly varying load with zero intensity at the two ends increasing to w/m at the center. The max B.M will occur at

21. 
Points of contraflexture are the points where

22. 
Which of the following beams will have points of contraflexure? (self weight is negligible)

23. 
A cantilever of span l is subjected to bending moment M at the free end. The S.F diagram will be

24. 
A beam is said to have been subjected to a pure bending moment , when

25. 
The thermal or temperature stress is a function of

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