Blueprint Basics
Lines on Architectural Drawings
Types of Drawings
Specifications
Views, Scale, and Measuring
100

This document describes how something is to be built and must be followed carefully because it is a legal contract.


What is a set of plans?


100

These lines indicate the length of an object.


What are dimension lines?


100

These sheets show the site and location of utilities connected to the building.


What are civil sheets?


100

A set of plans is made up of drawings and this other major part.


What are specifications?


100

Drawings are reduced versions of a larger object shown in exact proportion using this.


What is scale?


200

A set of plans is made up of these two main components.


What are drawings and specifications?


200

These lines extend from an object to show the dimension measurement.


What are extension lines?


200

These sheets show the arrangement of rooms and information about the building exterior and interior.


What are architectural sheets?


200

Specifications contain information not included in the drawings and must be followed because they are this kind of document.


What is a legal document?


200

This special ruler is used to measure scaled drawings.


What is an architect’s scale?


300

Specifications must be followed because otherwise this may happen to the work.


What is the work must be redone at the contractor’s cost?


300

These dashed lines show parts of an object that cannot be seen in the current view.


What are hidden lines?


300

These sheets show sewage lines, hot water and cold-water systems, and drainage lines.


What are plumbing sheets?


300

These two kinds of information are found in specifications.


What are legal matters and technical specifications?


300

These drawings are the most common pictorial views used for piping diagrams.


What are isometric drawings?


400

These contain information not shown in the drawings and include legal and technical information.


What are specifications?


400

These lines mark the middle of an object.


What are centerlines?


400

These sheets show outlets, switch boxes, lighting fixtures, and where heat tracing is used on pipes.


What are electrical sheets?


400

These are changes made to drawings or specifications before construction is underway and are found at the front of the spec book.


What are addenda?


400

In an isometric drawing, the front and side elevation views are drawn at this angle.


What is 30 degrees?


500

Any changes to specifications must be approved by these two parties.


Who are the architect and the owner?


500

These lines indicate an object continues longer than shown in the drawing.


What are break lines?


500

These sheets are the most important for insulators because they show HVAC-related systems.


What are mechanical sheets?


500

These are written changes to the documents that must be signed by the architect, owner, and contractor after the project is underway.


What are change orders?


500

This type of drawing uses horizontal lines that go to a vanishing point so the object appears more realistic.


What is a perspective drawing?


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