Explore the skills · QCAA
Engineering
Unit 4 external-exam revision, with clearly separated Unit 3 civil-structures revision.
Explore the subject and its skills. Full lessons, examples and practice require subject access. Accounts and purchasing are not open yet.
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Civil structures in society
- Explain civil engineering rolesRevision skill
- Explain structural innovation and resilienceRevision skill
- Explain construction materials and environmental impactsRevision skill
- Analyse structural life cycles and ethical trade-offsRevision skill
- Explain corrosion and select protection methodsRevision skill
Structural forces
- Calculate pin and roller support reactionsRevision skill
- Find truss member forces by the method of jointsRevision skill
- Find truss member forces by the method of sectionsRevision skill
- Construct shear-force and bending-moment diagramsRevision skill
Civil engineering materials
- Compare civil material properties for an applicationRevision skill
- Calculate stress, strain and Young’s modulusRevision skill
- Apply factor of safety and allowable working stressRevision skill
- Interpret and compare stress–strain curvesRevision skill
- Interpret and compare material-test evidenceRevision skill
- Explain reinforcement and prestressing in concreteRevision skill
Machines in society
- Explain mechanical, mechatronic and biomechanical expertiseRevision skill
- Analyse how machine solutions benefit communitiesRevision skill
- Combine engineering evidence to propose a machine solutionRevision skill
Machines and transmission
- Identify machine functions and types of motionRevision skill
- Calculate mechanical advantage, velocity ratio and efficiencyRevision skill
- Identify lever classes and calculate effortRevision skill
- Calculate the mechanical effect of an inclined planeRevision skill
- Calculate screw velocity ratio and effortRevision skill
- Determine load support and effort in pulley systemsRevision skill
- Calculate belt-drive ratios and output speedRevision skill
- Analyse spur, worm, and rack-and-pinion gear systemsRevision skill
Motion, forces and energy
- Calculate mechanical work and powerRevision skill
- Calculate energy transfers and efficiencyRevision skill
- Solve one-dimensional uniformly accelerated motionRevision skill
- Calculate apparent weight in vertical motionRevision skill
- Distinguish static and kinetic friction in motion problemsRevision skill
- Relate limiting friction to angle of reposeRevision skill
- Solve one-body motion on an inclined planeRevision skill
Electrical circuits and logic control
- Interpret logic-gate symbols and truth tablesRevision skill
- Create logic circuits and truth tables from conditionsRevision skill
- Calculate resistance, current and voltage in series circuitsRevision skill
- Calculate resistance and branch currents in parallel circuitsRevision skill
- Calculate electrical power, energy and efficiencyRevision skill
Materials for machines
- Interpret lead–tin phases and eutectic behaviourRevision skill
- Calculate phase fractions and compositions using the lever ruleRevision skill
- Interpret steel phases and microstructuresRevision skill
- Select plain-carbon steels for mechanical applicationsRevision skill
- Explain how hot and cold working change grain structureRevision skill
- Explain and compare annealing and normalisingRevision skill
- Explain quenching, martensite and temperingRevision skill
- Select ABS, polycarbonate and nylon 6 from their propertiesRevision skill