CMS-1

On a principal plane, shear stress is

• maximum

• zero

• negative

• cannot be said

The angle between the plane of maximum shear stress and the plane of maximum normal stress is

• 0˚

• 60˚

• 90˚

• 45˚

What is the unit of strain?

• pascal

• meter

• no unit

• newton

• normal stress

• strain

• shear stress

• young modulas

When a material is loaded within elastic limit, the material will regain its shape and size when the load is removed.

• Agree

• Disagree

The tensile strength of ductile materials is __________ its compressive strength.

• equal to

• less than

• greater than

• none of the above

When a body is subjected to a direct tensile stress (σ) in one plane, then maximum normal stress occurs at a section inclined at __________ to the normal of the section.

• 0°

• 30°

• 45°

• 90°

Shear modulus is the ratio of

• linear stress to linear strain

• linear stress to lateral strain

• volumetric strain to linear strain

• shear stress to shear strain

In the shear stress notation 'τ_xy', 'x'

and 'y' denotes

• plane and direction

  respectively

• direction and plane

  respectively

• axis and

  plane respectively

• none of the above

Sum of squares of three direction cosines of normal to a plane within a solid body is

• zero

• one

• two

• four