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By stating the general surface finish in a general note (often pre-printed in the format). Any different finishes in the body of the drawing are indicated by a 'tick' symbol with the relevant surface finish value in Micometres or Microinches above the horizontal line of the tick.
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What are the uses of a set square in engineering drawing?
answer:-to draw vetical and inclined lines
How would an engineering drawing be used?
It is a blue print or a copy on paper for the specifications of an item to be produced or manufactured
Why set suare?
A set square is a tool for marking angles in engineering and technical drawing, etc. They come in different angles and may be adjustable.
Why can not use second angle and four angle projection method in Engineering drawing?
Because in second angle both quaderent comes negative that's why we cant use second angle method
How do dimensions given in the specifications differ from the dimensions required on the working drawings?
If the working drawings are what is used to manufacture the object then there should be no difference. There will be more detail given in the working drawing but they would be engineering tolerances.
