Question

At a point on a plane of symmetry which items are zero ?

a) Tangential displacements
b) Normal displacement
c) Tangential heat flux
e) Normal heat flux
f) Tangential rotations
g) Normal rotations
h) All of the above
i) None of the above

Answer 1

At a point on a plane of symmetry, both the tangential displacements and normal displacement are zero. In terms of heat flux, both the tangential heat flux and normal heat flux are zero. As for rotations, both the tangential rotations and normal rotations are zero. Therefore, the answer is h) All of the above.

Step-by-step explanation:

At a point on a plane of symmetry, both the tangential displacements and normal displacement are zero. This is because on a plane of symmetry, the object is perfectly balanced and there is no net motion in any direction.

In terms of heat flux, both the tangential heat flux and normal heat flux are zero. This is because on a plane of symmetry, there is no transfer of heat in any direction.

As for rotations, both the tangential rotations and normal rotations are zero

Therefore, the answer is h) All of the above