6. Technical Drawing Conventions Flashcards
The typical size of an office’s projects, the filing system used by the office, the capabilities of the reproduction and plotting equipment, and client requirements all determine:
A. the number of technical staff required by the firm
B. size of the drawing sheet used for an interior design firm
C. the fees charged by the firm
D. whether the drawings are completed by hand, CAD or BIM
B. the size of the drawing sheet used for an interior design project
Explanation: The size of a drawing sheet used for interior design projects depends on several factors. Typically, an office will use one or two standard sized
for all projects it does. Sheet size depends on the typical size of an office’s projects, the filing system used, the capabilities of the reproduction and plotting equipment and client requirements. Sheet size is most typically determined by the size needed to draw a floor plan on one sheet without dividing the plan into sections.
What would be the best scale to use to communicate a ceiling soffit detail?
A. 1-1/2”
B. 3/16”
C. 3/32”
D. 1/8”
A. 1-1/2”
Explanation: 1/8″ is a common scale for a floor plan which would be too large for a soffit detail. 3/16″ and 3/32″ should never be used because they are too close in size to 1/8” and 1/4″ scales. 1-1/2″ is a typical sized used for standard details.
Interior dimension strings should…
A. Be placed right in the center of the plan for legibility
B. Have a dimension missing
C. Always use whole integers
D. Should be taken to the studs, not the drywall finish
B. Have a dimension missing
Explanation: A “missing” dimension is called an open dimension, Open dimensions are used on interior drawings to accommodate minor discrepancies.
Issues arise during construction, and those that are not critical should be allowed to vary to accommodate changes, mistakes or variations in the field.
Open dimensions should not be assigned to critical dimensions, such as code required clearances, or areas where an exact fit is needed, such as with mill work or cabinetry. Another dimension in the chain can be allowed to vary, so that the critical dimensions are met.
A detail drawing would typically be drawn at any of the following scales except:
A. 3” = 1’-0”
B. 1” = 1’-0”
C. 1/4” = 1’-0”
D. 1 1/2” = 1’-0”
C. 1/4” = 1’-0”
Explanation: Because details show complex information, they are typically large scale drawings of sections.
Choose the correct drawing order:
A. Title, Civil, Arch, Landscape, Structure, Mech, Plumb, Elec
B. Title, Arch, Elec, Plumb, Mech, Structure, Landscape, Civil
C. Title, Arch, Structure, Civil, Mech, Plumb, Elec, Landscape
D. Title, Civil, Landscape, Arch, Structure, Mech, Plumb, Elec
D. Title, Civil, Landscape, Arch, Structure, Mech, Plumb, Elec
Explanation: The drawing set is a communication tool for all the parties involved in a construction project. It should be organized so that it is easy to understand and find information. The title sheet always comes first. The site and landscape surround the building so Civil and Landscape drawings appear before those for the building. Next, the Architectural drawings, including interior design as incorporated as part of the architectural set come before the consultant drawings. Then structure comes before the others which are generally listed in the order that they are performed during construction, so electrical would come last.
What does it mean to provide an open dimension?
A. the dimension shown must be the minimum provision when the door is in the open position
B. along a string of dimensions, one area is left without a specific dimensions meaning this area can be flexible as long as the other dimensions are maintained
C. the dimension noted is to be determined and needs to be confirmed with the designer prior to construction.
D. the dimensions noted is to remain clear for ADA requirements
B. along a string of dimensions, one area is left without a specific dimensions meaning this area can be flexible as long as the other dimensions are maintained
Explanation: Minor discrepancies can be accommodated in the final space planning by leaving an open dimension. An open dimension is part of a dimensions string that is not given a dimension value on the drawings.
When SI units are used for interior design and architectural drawings, what unit of measure is never used?
Centimeters
What is the standard format for dimensioning on interior design drawings?
XX’-XX” to indicate feet and inches
What is common format for sheet numbering for medium size projects when drawings of engineering consultants are included?
Single capital letters, which represent drawing responsibility (A, M, E, etc) followed by sequential numbers is a common format for this.
On construction drawings, what are the purposes of a border line?
The purpose of this drawing element includes:
- Confining drawing within a certain are
- Allowing for limitations of plotters
- Providing for paper tears and other edge imperfections
What does the acronym BIM represent?
Building Information Modeling
What scales are typically used for interior design floor plans?
Scales of 1/8” = 1’-0” and ¼” = 1’-0”
What scale is typically used for an enlarged floor plan?
½” = 1’-0”
What is the term for text in a title block, or elsewhere on a construction drawing with an identifying number used in the field of the drawing to refer to that text?
Key note
When are string dimensions used on an interior design drawing?
These are used when two or more lengths in a row must be dimensioned.
