Engineering Drawing
A line drawn with a long section, short dash, and another long section is a __________.

Center of a circle
Center of a radius
Center axis of a hidden cylinder
Hidden feature

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Engineering Drawing
Three dimensional models are often used in the design process to ________.

Determine the quantity of brick needed to build the house
Help the client select a color for their carpet
Provide the client with a model which they can use to impress their friends
Help the client understand the overall design concept

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