theory of torsion

When a shaft is subjected to torsion, what stress is produced in the material?

• Shear stress

• Bending stress

• Axial stress

• Tensile stress

The theory of torsion assumes that the cross-section remains

• Plane and linear

• Linear only

• Plane only

• Curved and twisted

When a shaft is subjected to a torque, what is the angle of twist proportional to?

• The length of the shaft

• The shear modulus of the material

• The polar moment of inertia of the shaft

• The radius of the shaft

What is the polar moment of inertia for a rectangular cross-section with sides 'b' and 'h'?

• bh/3

• bh/4

• bh/5

• bh/6

The radius of a solid circular shaft is doubled, how is the maximum shear stress affected?

• Halved

• Doubled

• Remains the same

• Reduced to one quarter