Question

If datums are used as suggested below (A datum on shaft, B datum on face below the head, C datum on the hex flat) and order of precedence is in alphabetic order, name the datum that prevents: a. Translation along the X axis: _ b. Rotation about the X axis: _ c. Translation along the Z axis: _ d. Rotation about the Y axis: _

Answer 1

a. Use datum on shaft

b. Use datum on hex flat

c. Use datum on face below the head

d. Use datum on shaft

When these datum are used, they will prevent translation and rotation along axis which they act.