A transition duct in an aircraft air conditioning system is shown.
Which is the correct shape and size for side
ENGINEERING, AE 2023 HSC 20 MC
A transition duct is shown.
What is the true angle of the line
ENGINEERING, AE 2017 HSC 26b
Orthogonal and pictorial drawings of a sheet metal electrical cable cover are given below.
- Draw a half-development of the electrical cable cover. Use the centre line to position the development. (4 marks)
- A 20 mm diameter hole is to be punched through the top of the electrical cable cover before folding.
- The ultimate shear stress of the material used to manufacture the cover is 110 MPa.
- Calculate the force required to punch out the hole if the thickness of the sheet metal is 0.5 mm. (3 marks)
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i.
ii.
Show Worked Solution
i.
Key Points for this Drawing:
- Find true length of each line from the diagrams given
- Do not dimension
- Only complete a half development, not a full development
- Use lighter lines for the the bends/folds and heavier lines for the outline
- Label all points
| ii. | ||
♦ Mean mark (ii) 42%.
ENGINEERING, AE 2022 HSC 27b
The top and front views of a transition piece in an aircraft air conditioning duct are shown.
Complete a half-pattern development of the transition piece, starting from the line
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Notes on this drawing:
→ Ensure you find the true length of lines
→ Ensure fold lines are lighter than the outline
→ Since the half development cuts through a side, ensure you use a break line
→ Do not dimension
→ Only complete a half development and not a full development
Show Worked Solution
Notes on this drawing:
→ Ensure you find the true length of lines
→ Ensure fold lines are lighter than the outline
→ Since the half development cuts through a side, ensure you use a break line
→ Do not dimension
→ Only complete a half development and not a full development
♦ Mean mark 40%.
ENGINEERING, AE 2018 HSC 12 MC
A transition piece is shown.
Which of the following correctly represents the development of the transition piece?
ENGINEERING, AE 2022 HSC 8 MC
It is appropriate to produce a half development of a transition piece when the piece
- is very large.
- is symmetrical.
- is very complex.
- needs to be produced quickly.