Drawing Symbols and Center Lines
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Questions and Answers

What do dashed lines typically indicate in a technical drawing?

  • Center of a whole circle
  • Pre-existing constructions (correct)
  • Invisible edges and surfaces
  • Symmetry about a line

    • What type of lines are used to indicate the center of a circle or symmetry about a line?

  • Center lines (correct)
  • Leader lines
  • Extension lines
  • Dimension lines

    • What is the purpose of dashed lines in construction drawings?

  • Represent hidden surfaces or intersections of objects (correct)
  • Establish the drawing area
  • Outline borders around title blocks
  • Highlight lettering and symbols

    • Which type of line is used for borders around title blocks and schedules?

    <p>Heavy full line</p> Signup and view all the answers

    How far do extension lines start from the feature they are related to?

    <p>1/6 inch</p> Signup and view all the answers

    What do dimension lines indicate in technical drawings?

    <p>Exact size of an object</p> Signup and view all the answers

    What do section lines (cross-hatch lines) indicate in a section view?

    <p>Cut surface</p> Signup and view all the answers

    What is the purpose of center lines in construction drawings?

    <p>Identify centers of symmetrical objects</p> Signup and view all the answers

    Where do leader lines terminate in a technical drawing?

    <p>With arrowheads</p> Signup and view all the answers

    What is the purpose of extension lines in dimensioning?

    <p>Show the extent of a dimension</p> Signup and view all the answers

    How do center lines differ from dashed lines?

    <p>Center lines have long and short dashes</p> Signup and view all the answers

    When are hidden lines typically used in construction drawings?

    <p>To represent hidden surfaces</p> Signup and view all the answers

    What is the universal language of a technician, architect, or engineer?

    <p>Alphabet of lines</p> Signup and view all the answers

    What kind of lines are used to define the shape and size of a structure?

    <p>Object lines</p> Signup and view all the answers

    Which type of lines are mainly used to represent the edges of surfaces?

    <p>Object lines</p> Signup and view all the answers

    What do dashed lines represent in construction drawings?

    <p>Section lines</p> Signup and view all the answers

    In manual pencil drafting, what type of line should be kept very light?

    <p>Temporary construction lines</p> Signup and view all the answers

    What should be bold in the border lines for the drawing sheet and title block?

    <p>(2H to B pencils)</p> Signup and view all the answers

    What type of dimensions are used for measuring the length along any X or Y axis and displaying length as text with a leader?

    <p>Ordinate dimensions</p> Signup and view all the answers

    Which type of dimensions are used for indicating angles in degrees?

    <p>Angular dimensions</p> Signup and view all the answers

    What type of dimensions are used for measuring the radius of arcs, circles, and ellipses?

    <p>Radial dimensions</p> Signup and view all the answers

    In engineering drawings, in what format should feet and inches dimensions be shown?

    <p>Feet and inches combined (e.g., 10’6”)</p> Signup and view all the answers

    Why should multiple measuring systems be avoided in drawings?

    <p>To reduce computation requirements</p> Signup and view all the answers

    Which symbol is often used to represent the diameter in diametral dimensions?

    <p>'ø'</p> Signup and view all the answers

    Which ministry was given the authority to establish and promulgate different standards for housing projects?

    <p>Ministry of Human Settlements</p> Signup and view all the answers

    What type of lots should be avoided under the BP 220 requirements?

    <p>Deep lots</p> Signup and view all the answers

    Which Barangay is bounded on the Northwest (NW) by Canumay East?

    <p>Lingunan</p> Signup and view all the answers

    Under BP 220, how should lot frontage elevation be positioned?

    <p>At street level</p> Signup and view all the answers

    What was released by the Housing and Land Use Regulatory Board in 2008?

    <p>Revised Implementing Rules and Regulations for BPP</p> Signup and view all the answers

    Which portion is Canumay East bounded by on the Southeast (SE)?

    <p>Paso de Blas</p> Signup and view all the answers

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