Revit Parametric Family Creation 3

Question 1

What happens if you delete a reference plane that has an active dimension constraint tied to family parameters?

Accepted Answer

Revit warns that constraints will be lost and the geometry may fail

Answer

Revit warns you that deleting a constrained reference plane will break associated dimensions and can cause geometry failures.

Question 2

Which formula syntax correctly makes parameter 'B' equal to half of parameter 'A' in the Revit Family Editor?

Accepted Answer

Both 'A / 2' and 'A * 0.5' are valid

Answer

Revit's formula engine accepts standard arithmetic operators, so both division and multiplication expressions produce the same result.

Question 3

In a wall-based family template, which default reference plane represents the face of the host wall that the family sits on?

Accepted Answer

Wall Face

Answer

The 'Wall Face' reference plane aligns the family's insertion point with the host wall's face, enabling correct face-based placement.

Question 4

What is the correct way to make a family parameter drive both the width of an extrusion and the position of a reference plane simultaneously?

Accepted Answer

Dimension both the extrusion edge and the reference plane to the same reference plane, then label both dimensions with the same parameter

Answer

Labeling multiple dimensions with the same parameter ensures a single value controls all constrained elements simultaneously.

Question 5

When should you use a 'Void Extrusion' in a Revit family?

Accepted Answer

To cut material away from a solid form, creating holes or recesses

Answer

Void forms subtract geometry from solids, allowing you to cut openings, recesses, or complex negative shapes into existing 3D forms.

Revit Practice Test