M7.5 + M7.6 Flashcards
What standards should be adhered when creating an Engineering drawing?
BS8888
How does the scale box work?
- 1:1 = the exact size
- 1:2 = half the size
- 2:1 = double the size
What is isometric view?
It shows two sides and the top or bottom of the object (horizontal lines at 30 degrees)
How big is the drawing number characters?
1/2 inch characters
How big is the title characters?
1/4 inch
What does SH stand for on a engineering drawing?
Total number of sheets
What does SECT NO stand for on an engineering drawing?
Section number on aircraft (MS multi section)
What are zones identified on an engineering drawing?
Vertical dimensions are letters and horizontal are numbers eg.A-7
What is a revision of an engineering drawing?
When the drawing has been modified and a new one has to be released
What is a parts list also know as?
Bill of materials
On surface texture what do the number indicate?
The lower the number the smoother the texture
What are the two types of orthographic drawings?
- First angle (European)
- Third angle (American)
What is a sectional view of an engineering drawing?
To show the interior shape clearly
What are the two types of tolerances?
Unilateral and bilateral
What are drawings called that focus on one part?
Detail drawings
What is the allowance?
The low limit of hole - high limit of shaft
What are the two types of clearance fit?
Running and free running fit
What are the two types of transition fit?
Light press and push fit
What are the two types of interference fit?
Drive and force fit
What is shrink fit?
When the hole and shaft have been size altered by temperature
What does a capital letter show when looking at the ISO (international standard organisation)?
ISO hole system of fits
What does a lower letter show when looking at the ISO (international standard organisation)?
ISO shaft system of fits
What is a dial test indicator used for?
To check for roundness or rotation
