1st qtr exam 2024 Flashcards
● An art of making drawings.
● It is also called mechanical drawing and the process of representing something with the aid of drafting tools and
instruments.
Drafting
- an ordinary table found in school or at home with a convenient height that is comfortable for drawing. It is where you
can fasten your drawing and it is a stand for the drawing board.
Drawing Table
- made of seasoned softwood with edges that are smooth and straight. It varies from 9”x12” (for sketching & fieldwork) to
48”x72” or larger. The ideal size for students is 20”x24”.
Drawing Board
- used to guide in drawing horizontal lines. It is made of a long strip called the blade and a shorter piece called the head.
The blade is fastened rigidly to the head at a right angle.
T-Square
- a semi or full-circle scale divided into 180 or 360 equal parts called a degree (°) made out of a transparent celluloid
plastic. It is used to measure and lay off angles that cannot be measured by triangles.
Protractor
-used as a guide in drawing vertical and other lines at a certain angle to the horizontal. These are usually transparent
(celluloid) with graduations & used in combination with the T-Square.
Triangles
- are made in a combination style of 6” long with a fixed needlepoint leg, removable pen, and pencil legs, and a
lengthening bar. It is used for drawing circles from a radius of 1” or larger.
Compasses
- made of rubber or gum and are available in a variety of sizes, shapes, and degrees of hardness. For general drafting, a
Erasers
- is the most important tool of a draftsman made in a hexagonal shape to fit the thumb, forefinger, and second finger. Its
hexagonal shape prevents it from rolling off the table.
Drawing Pencil
- A person who is engaged in working with drawings and who portrays something in graphical form; the one
who uses mechanical aids or drawing instruments in his work.
Draftsman
● A graphic representation of the real thing, an idea, or a proposed design for construction later (Giesecke, 1998).
● A Process of thinking, planning, and setting thoughts down on a piece of paper in graphic form.
● It is a principal means of expression of ideas in a technical world (Spencer, 1982).
● It is also considered as an ability of a person to put facts and truths in graphic form that is by means of lines and
tools.
Drawing
- technique in making drawings without the use of drawing
instruments.
Freehand Drawing or Technical Sketching
- a technique used to describe industrial drawing which is done with the
aid of drawing instruments.
Mechanical or Instrumental Drawing
- defines how clear and effectively understandable the drawing is.
- can be attained by being very careful in every aspect of the drawing in terms of lettering, line details, symbols,
and the proper application of the fundamental principles.
Legibility
- means being precise as incorrect drawing results in to waste of materials, money, time, and effort
- there is no room for errors in drafting
- accuracy can be achieved through constant, correct practice with patience and perseverance.
Accuracy
- refers to the maintenance of cleanliness in drawing
- can be achieved by cleaning the hands and instruments before drawing
- an untidy undertaking reflects the personality of the one who does it.
Neatness
- refers to having accomplished the drawing on the specified time frame without sacrificing the aesthetics as well as
the utility of such drawings - can be attained through intelligence and continuous work.
Speed
- an aspect of efficiency in drawing
Orderliness
● draw architectural and structural features of buildings for construction projects. These workers may specialize in a
type of building, such as residential or commercial. They may also specialize in the materials used, such as steel,
wood, or reinforced concrete.
Architectural Drafters
● prepare topographical maps used in construction and civil engineering projects, such as highways, bridges, and
flood-control projects.
Civil Drafters
● prepare wiring diagrams that construction workers use to install and repair electrical equipment and wiring in
power plants, electrical distribution systems, and residential and commercial buildings.
Electrical Drafters
● produce wiring diagrams, assembly diagrams for circuit boards, and layout drawings used in manufacturing and in
installing, and repairing electronic devices and components.
Electronics Drafters
● prepare layouts that show the details for a wide variety of machinery and mechanical tools and devices, such as
medical equipment. These layouts indicate dimensions, fastening methods, and other requirements needed for
assembly. Mechanical drafters sometimes create production molds.
Mechanical Drafters
● It refers to the shortest distance between 2 points. It has no breadth, but it has length.
Line
● It represents a location in space on a given drawing. A point has no height, width and depth.
Point
- a drawing wherein the artist expresses his/her ideas and emotions in a philosophical and
aesthetic way. He/she draws things in a peculiar mode. A drawing of this type is defined as a means of delineation
of form upon a surface, usually a plane, by means of lines and tints or shading.
Artistic Drawing
-this type of drawing is considered as the exact means of expression of ideas in which
accuracy is its main objective. This drawing is the art and science of describing structures and details completely
and accurately by graphical means.
Technical Drawing
● It is formed by 2 intersecting lines.
Angle
● It refers to a plane bounded by three straight sides and the sum of the interior angles is always 180°.
Triangle
- 2 opposite sides equal with 2 angles equal (but may not be right angles)
Rhomboid
- sides are equal & opposite angles are also equal (but may not be right angles)
Rhombus
● These are plane figures bounded by 4 straight lines. If 2 opposite sides are parallel, the quadrilateral is called, a
parallelogram.
Quadrilaterals
-plane figure with 2 parallel sides & angles may or may not be equal
Trapezoid