26) Conversational topic “Drawings” should include:
• Drawing types and scales
. Today, drawings are generally not drawn by hand. They are produced on computer, using CAD systems.
Most engineering designs consist of a set of drawings:
• General arrangement (GA) drawings show whole devices or structures, using a small scale.
• Detail drawings show parts in detail, using a large scale, such as 1:5 or 1:2.
• Types of views used on drawings
Technicians are discussing different views shown on drawings. For example, we can say top view, front view, right view and etc.
• Design calculations
Design information is shown on drawings, and written in documents which describe the materials, sizes and technical requirements of components.
27) Conversational topic “Measurement” should include:
• Horizontal and vertical measurements
If a surface is described as being level, this means it is both horizontal and flat. Also flat surface may be vertical, or inclined. Faces that are vertical, such as those of the walls of buildings, are described by engineers as being plumb.
• Linear dimensions
Overall length is a measurement of how long the detal is in total. The measurement is taken between the two points that are furthest apart, along the length of the detal. The length is measured along a horizontal plane.
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