Principal planes are subjected to
A. Normal stresses only
B. Tangential stresses only
C. Normal stresses as well as tangential stresses
D. None of these
Answer: Option A
Solution (By Examveda Team)
Principal planes are special planes within a stressed body.They are unique because at these specific planes, something very important happens:
There are NO shear stresses acting.
This means that the only stresses present on a principal plane are normal stresses (also called direct stresses), which act perpendicular to the plane.
Therefore, the correct answer is that principal planes are subjected to normal stresses only.
The other options are incorrect because shear stress is absent on principal planes.
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Comments (8)
A. $$\frac{2}{3}$$
B. $$\frac{3}{2}$$
C. $$\frac{5}{8}$$
D. $$\frac{8}{5}$$
Principal planes are subjected to
A. Normal stresses only
B. Tangential stresses only
C. Normal stresses as well as tangential stresses
D. None of these
A. $$\frac{{\text{M}}}{{\text{I}}} = \frac{{\text{R}}}{{\text{E}}} = \frac{{\text{F}}}{{\text{Y}}}$$
B. $$\frac{{\text{I}}}{{\text{M}}} = \frac{{\text{R}}}{{\text{E}}} = \frac{{\text{F}}}{{\text{Y}}}$$
C. $$\frac{{\text{M}}}{{\text{I}}} = \frac{{\text{E}}}{{\text{R}}} = \frac{{\text{F}}}{{\text{Y}}}$$
D. $$\frac{{\text{M}}}{{\text{I}}} = \frac{{\text{E}}}{{\text{R}}} = \frac{{\text{Y}}}{{\text{F}}}$$
A. $$\frac{{\text{M}}}{{\text{T}}}$$
B. $$\frac{{\text{T}}}{{\text{M}}}$$
C. $$\frac{{2{\text{M}}}}{{\text{T}}}$$
D. $$\frac{{2{\text{T}}}}{{\text{M}}}$$

A principal plane is a plane where only normal stress acts and shear stress is zero. The converse is also true: if the shear stress on a plane is zero, then that plane is a principal plane.
Yes, Correct✅
Correct
tangential stresses are infect shear stresses and on principle planes shear stresses are zero and normal stresses might have some value.
Can u explain how it's?
Can u explain how it's?
The plane on which normal stress attains its maximum and minimum value.” So these planes are also called as major principal plane and minor principal plane. The shear stress on principal plane is zero.
Why options A explain