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21
A secondary auxiliary view is a projection off of the __________.
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Answer: Option C
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22
Perspective drawings are classified according to their number of these features:
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Answer: Option C
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23
Technical drawings typically serve one of three purposes:
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Answer: Option A
Solution:
Technical drawings primarily serve the purpose of visualization, allowing engineers and designers to see a representation of a concept or idea before it is built or manufactured.

They also aid in communication by providing a clear and detailed method for conveying technical information between individuals or teams.

Additionally, technical drawings serve as documentation, providing a permanent record of the design for manufacturing, reference, and future use.
24
This means that a feature of a finished product contains the maximum amount of material permitted by the tolerance dimensions for that feature:
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Answer: Option A
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25
A ________ is the person responsible for verifying that the drawings in a project set are free of mistakes.
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Answer: Option D
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26
Oblique sections are useful to show this:
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Answer: Option C
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27
When the receding lines are true length, and the projectors are at 45 degrees to the plane of projection, the oblique drawing is called this:
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Answer: Option B
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28
The first step in creating a traditional technical drawing is to ________.
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Answer: Option C
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29
Newer versions of Auto-CAD utilize the _________ to make block library management very easy.
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Answer: Option B
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30
These are lines drawn on a map to locate, in the plan view, points of equal ground elevation:
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Answer: Option A
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