Read the text and choose the correct answerTechnical
drawing, also known
as drafting, is the act and discipline of composing plans. The main
purpose of technical drawing is to describe or explain all the characteristics of
a product, giving all the necessary information that will help a manufacturer
to produce that component. The visual image should be accurate in terms of dimensions and
proportions, and should provide an overall impression of what an object is or does.
It is a precise task requiring a high level of skill and suitable engineering
tools. A drafter is the person who makes a drawing and who requires a wide
knowledge of geometry, trigonometry and spatial comprehension and in all cases
must be precise and accurate and give great attention to detail.
People who
communicate with technical drawings use a visual language and technical standards
that define practical symbols, perspectives and units of measurement. What are the
tools and instruments used by a drafter in manual drafting? A T-square, a protractor,
a compass, rulers , and triangles. Paper is also important and can be
divided into layout paper, which is thin and fragile, and cartridge paper,
which is heavier and more suitable for final drawings. Pencils used in drawing are
graded from H to F depending on the hardness. The final drawing is made
using a technical pen, graded according to the point, which must
maintain the same line width . They are used with a range of stencils to
add symbols, letters and patterns to the drawing. Rubbers remove pencils or pen
writing when mistakes are found . Correction fluid is used to mask text errors.1) Technical drawing is needed to practise pens, rulers and stencilsmake a scale of the productlet the manufacturer understand the requirements 2) The drafter needs some paper and a pencilthe final producta wide range of technical instruments 3) Paper is chosen considering the drafter's preferencewhat sort of drawing the drafter is going to makethe pencils he/she is going to use 4) Pencils are graded according to hardness and colourhardness and pointhardness 5) A technical pen maintains the same line widthdraws lines of the same lengthmakes regular lines 6) When mistakes are found we can't correct themthey're removed with correction fluidstencil can cover them