Free QCE Year 11 Engineering Flashcard Review
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Name the four phases of the Engineering problem-solving process.
Explore; Develop; Generate; Evaluate and refine. Evaluate and refine is the decision point for moving between phases.
In which phase are success criteria first determined?
Explore. They are reviewed again during Develop and used to judge the prototype in Evaluate and refine.
What makes a success criterion useful?
It is specific and measurable, e.g. 'holds 5 kg at midspan with no permanent deformation'.
Give two typical areas of civil engineering work.
Any two of: dams, bridges and other structures; transport systems; water supply and sewerage; geotechnical work on soil and foundations.
Give two typical areas of electrical engineering work.
Any two of: power generation, transmission and distribution networks, electric motors and appliances, control and signalling systems.
Why does an arch suit stone construction?
An arch carries load mainly in compression, and stone is strong in compression but weak in tension.
What was distinctive about Roman concrete?
Lime mixed with volcanic ash (pozzolana) produced a durable concrete that could set underwater.
How do the Brewarrina fish traps work?
Stone weirs and ponds use the river's flow to guide fish into enclosures where they can be held and caught.
Why is a woomera described as a lever?
It rotates with the arm and extends its effective length, so the spear end travels faster and further.
Why can spinifex resin be called a thermoplastic adhesive?
It softens when heated so it can be shaped around a tool join, then hardens as it cools. Some spinifex resins can be reheated and reworked, though others become brittle.
State the four principles of the Engineers Australia Code of Ethics (2022).
Demonstrate integrity; Practise competently; Exercise leadership; Promote sustainability.
Which Code principle is breached by hiding a failed test result?
Mainly Demonstrate integrity (honesty), and also Promote sustainability because public safety is put at risk.
What is the difference between an annotation and a callout?
An annotation is an explanatory note; a callout is a note joined by a leader line to a specific feature.
A part 240 mm long is drawn at 1:4. How long is it on paper?
60 mm. The dimension on the drawing still reads 240.
List four items found in a title block.
Any four of: title, drawing number, date of issue, revision, creator (author), owner, scale.
What is the purpose of the AS 1100 series?
To give engineers and designers common drawing conventions, a shared technical and graphical language that reduces the need for written explanation.
Which standard covers structural engineering drawing?
AS/NZS 1100.501:2002.
In third-angle projection where is the top view placed?
Above the front view.
Which line type shows hidden edges?
Thin dashed line.
What angle are the receding axes in isometric drawing?
30° to the horizontal, with vertical lines remaining vertical.