What is true concerning the action of a couple on a body A couple causes the bod

Question

What is true concerning the action of a couple on a body A couple causes the body to translate in space. A couple tends to create both a turning effect and a translation of the body. The couple will create only a turning / rotational effect on the body. The location of the point around which the couple acts determines if the couple creates a moment, a translation, or both. A force acting perpendicular to an area produces a / an shear stress axial strain bending moment lateral strain Both b and d Which of the following statements are true for elastic modulus (E) E = stress / strain in the lower part of the stress-strain curve. It is equal to the slope of the stress-strain curve up to the proportional limit of the material. It has the same units as stress. Stiffer materials, when not brittle, generally have higher values of elastic modulus. All of the above are true. A load applied that places a bar in compression creates a positive axial strain a negative axial strain a positive lateral strain a negative lateral strain Both b and c

Explanation / Answer

1.
Couple is equal and opposite forces at ends
It can only rotate
Answer: C

2.
It will produce axial strain. But agin that will decraese the area since volume has to be same
So it will also create lateral strain
Answer: e

3.
unit is N/m^2
All others are self explainatory
Answer: e

4.
It is similar to question 2 above
Answer : e

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