Hidden Lines in an Auxiliary View Should Be Omitted Unless

Q17: A fold line is place in the

Q18: When laying out a drawing with an

Q19: A pipe cut at a 45-degree angle

Q20: Which of the following is not a

Q21: An oblique surface is perpendicular to _

Q23: The auxiliary view is projected from a

Q24: The label F/A of a fold line

Q25: A primary auxiliary view is always projected

Q26: When constructing an auxiliary view, it is

Q27: Which of the following is not a