Question

in a shaft rotated by a couple, the shear force varies 1. from zero at the centre to a maximum at the circumference 2. from minimum at the centre of maximum at the circumference 3. from maximum at the centre to zero at the

Answer 1

..✔from zero at the centre to a maximum at the circumference

Answer 2

In a shaft rotated by a couple, the shear force varies from zero at the Centre to a maximum at the circumference.

• Couple are equal but opposite directional parallel forces.

• The couple always have equal magnitude the main reason a couple is used is to produce a rotating or to resist the rotation of any object.

• Shearing force is the type of force in which the an unaligned force acts on any part of the body in one direction and another part of the body in opposite direction.

• So, when a body is produced with shear force the force it generates is due to couple.

• due to rotation the shear force varies from the Centre to the circumference where it is maximum.

• at the Centre the couples force is minimum which is zero and moving towards the shearing force keeps on increasing being maximum at the circumference.

In a shaft rotated by a couple, the shear force varies from zero at the Centre to a maximum at the circumference.

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