Eduqas Types of Lines in Orthographic Drawings

Which type of line is used to show details that are hidden from the observer on a particular view?

• Centre line

• Section line

• Hidden detail line

• Extension line

What type of line is represented by a long dash followed by a short dash?

• Hidden detail line

• Centre line

• Section line

• Offset section line

Which type of line can also be used as a detail line?

• Hidden detail line

• Centre line

• Section line

• Extension line

What is the purpose of extension lines in orthographic projections?

• To show hidden details

• To indicate the center of circles or arcs

• To show the dimensions of an object

• To represent sectioned areas

What is the length of the extension line shown in the image?

• 75

• 85

• 95

• 105

What are centre lines used to show?

• Parts of circles and holes

• Edges of objects

• Dimensions of objects

• Colors of objects

In which view should the isometric view make use of three centre points?

• Side view

• Top view

• Front view

• Bottom view

What does a section view show?

• A. A three-dimensional view of an object.

• B. A two-dimensional view of part of an object that has been cut or sliced.

• C. A detailed view of the entire object.

• D. A view of the object from the top.

What is the purpose of section lines and offset section lines?

• A. To show the color of the object.

• B. To indicate where the object has been sectioned.

• C. To display the dimensions of the object.

• D. To highlight the material of the object.

What should the hatching in a section view be like?

• A. At 30° and unevenly spaced.

• B. At 45° and evenly spaced.

• C. At 60° and randomly spaced.

• D. At 90° and closely spaced.