Orthographic Projection and Diagrams Flashcards

1
Q

3 Orthographic views are derived from isometric drawings; what are these views called?

A
  • Front (left side)
  • Top (top)
  • Side (right side)
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2
Q

There are two types of diagrams which value a piece of equipment’s location; these are?

A

Block diagrams (macro) Wiring diagrams (micro)

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3
Q

What is an isometric drawing?

A

A drawing consisting of vertical lines and lines 30 degrees from the horizontal.

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4
Q

What do hidden lines show?

A

Features that are invisible in a specific orthographic view.

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5
Q

When using a set of drawings, which orthographic view is represented by “plans,” and which are represented by “elevations”?

A
  • Plans are top views
  • Elevations are side and front views.
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6
Q

Where is an electrical legend typically found?

A

On the first page of the electrical drawings.

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7
Q

What is a geodetic elevation?

A

One which is based on sea level (0 m).

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8
Q

What is a construction elevation?

A

One where the top of the main floor is 100 m.

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9
Q

What is a useful purpose of grid lines?

A

To pinpoint locations from one floor to the next. Very useful if running conduit through the floor.

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10
Q

What is the purpose of a riser diagram?

A

To show the relative elevation of equipment in a single line diagram.

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11
Q
A
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