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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.

This Question Belongs to Civil Engineering >> Theory Of Structures

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Comments (8)

  1. Sumon Hossain
    Sumon Hossain:
    11 months ago

    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.

  2. Girishkumar Gange
    Girishkumar Gange:
    4 years ago

    Yes, Correct✅

  3. Girishkumar Gange
    Girishkumar Gange:
    4 years ago

    Correct

  4. OMER Mushtaq
    OMER Mushtaq:
    4 years ago

    tangential stresses are infect shear stresses and on principle planes shear stresses are zero and normal stresses might have some value.

  5. Reddy Chotu
    Reddy Chotu:
    5 years ago

    Can u explain how it's?

  6. Reddy Chotu
    Reddy Chotu:
    5 years ago

    Can u explain how it's?

  7. Fahad Hasan
    Fahad Hasan:
    5 years ago

    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.

  8. Annareddy Kikkuru
    Annareddy Kikkuru:
    5 years ago

    Why options A explain

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Y are the bending moment, moment of inertia, radius of curvature, modulus of If M, I, R, E, F and elasticity stress and the depth of the neutral axis at section, then

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