TLE 8-DRAFTING REVIEWER
COMPUTER - is an electronic equipment that is capable of running software which is very helpful for the
draftsman to develop digitally drawn object.
PROTRACTOR – a semi-circular instrument split in 180 equal pieces.
- Used for measuring and setting of angles other than those obtainable with triangles.
TRIANGLES – a measuring tool which is typically used in drawing vertical lines and obliques lines.
TRIANGULAR SCALE – is used to duplicate a drawing in an expanded or reduced version from the list.
DIVIDE – is used to illustrate perfect divided arcs and circles.
DRAWING BOARD – a drafting equipment that should be kept clean to get rid of pencil graphite smudges that
is attached on a drawing paper.
DRAWING PENCIL – is regarded as one of the most significant tools in drawing at various grades.
SOFT PENCIL – a kind of pencil that Is used to draw graphs, charts, and diagrams.
SOFT ERASER – is best for erasing pencil and smudge marks.
DETACHABLE HEAD - a type of T-Square that has one fixed and adjustable head and used only for occasional
drawing.
FIXED HEAD – a type of T-Square that is used for everyday tasks and features a head that is attached to the
blade.
MASKING TAPE – is used to secure the drawing paper to the drawing board.
OSLO PAPER – a type of paper that is commonly used for mechanical drawing.
Safety Procedure in Maintaining Tools, Instruments, and Paraphernalia
1. Pencil
• Never sharpen the pencil over the drawing or close to any of the equipment.
• Always keep the lead sharp.
2. T-square, Triangles and French Curves
• Do not use the T-square for any rough surfaces.
• Never cut paper along its working edge, since the plastics can easily be damaged. Used cutter or scissors instead of
measuring instrument because it can damage the edge of it.
3. Ruler or Scale
• Scales should not be pricked with needle points of either the divider or compass when measurements are taken.
• Do not use scale as a ruler.
4. Divider and Compasses
• Do not oil the joints of the legs of divider and compass.
• Do not use the divider as substitute for thumbtacks in fastening the drawing paper on the drawing board or table top.
5. Drawing Paper
• It should be stored in rolled form.
• It should not be crumpled, wet or kept in moist or cold place.
6. Drawing Board/ Drawing table
• It should be in good working condition and must be always clean on or before using.
• Do not leave any kind of marks on your board to retain its smoothness.
REQUISITION SLIP – a form that is used to submit a request.
DELIVERY RECEIPT FORM – demonstrates the receipt or evidence of goods and services.
PURCHASING DEPARTMENT – the receiving department keeps one copy and send another copy TO THE
PURCHASING DEPARTMENT as notice of the arrival of materials.
CALCULATION – is the act or process or of result of calculating.
MENSURATION – It is an act of measuring.
Two System of Measurement
ENGLISH SYSTEM -which originated from England.
METRIC SYSTEM - or System International (S.I.) which originated from France.
HORIZONTAL LINES – is a kind of straight line which gives the quality of dignity, royalty and jubilance.
FULL CURVE – is more forceful than the first two and follows movement of letter “C”.
HIDDEN LINES – a alphabet of lines shows surfaces, edges, or corners of an object that are hidden from the
view.
SHORT BEARK LINE – this is solid thick wavy line equivalent to an object line that is drawn in freehand.
DIMENSION LINE – it has dimension numbers between each line ending with arrowheads to indicate the end
of the specified dimension.
FREEHAND DRAWING – also called as sketching.
ONE INCH – defined ad the width of the thumb.
METER – adopted in 1793 in France, during the time of Napoleon Bonaparte.
OCCUPATIONAL SAFETY AND HEALTH – it is a cross-disciplinary area concerned with protecting the
safety, health, and welfare of people engaged in work or employment.
BIOLOGICAL HAZARD – is a type of hazard that is caused by organisms such as viruses, bacteria, fungi and
parasites.
PHYCHOLOGICAL HAZARD – is a type of hazard that is caused by stress to a worker.
NOISE, VIBRATION, EBERGY AND WEATHER – are example of Physical Hazard.
DRAWING PAPER SHOULD BE STORED IN rolled form, Oslo or bond paper must be kept in a large
envelope and it should not be crumpled, wet, or kept in moist or cold place.
The number of physical goods including the number of each item must be check in the delivery receipt form
upon the delivery of the purchased item in the drafting.
