Module 1 Mathematics
Arithmetic, algebra, geometry, graphs and route-appropriate trigonometry used in maintenance calculations.
How to prepare for UK Part-66 basic-knowledge examinations
Fix the intended A, B1, B2, B2L, B3, L or C route; use the regulatory module matrix and knowledge levels; then rehearse the exact MCQ and essay components that apply to each selected module.
Core concepts
Concept 1
Units, ratios, percentages, areas, volumes and roots support routine maintenance measurement and conversion.
Exam cue: Write the unit beside every value and convert before substitution.
Concept 2
Algebra rearranges technical relationships while indices, logarithms and simultaneous equations appear at the higher knowledge levels.
Exam cue: Rearrange symbolically before entering numbers.
Concept 3
Geometry, graphs, rectangular and polar coordinates and trigonometry connect dimensions or measured data to physical systems.
Exam cue: Check sign, scale and physical reasonableness after calculation.
Risk pitfalls and guardrails
Mixing incompatible units.
Guardrail: Do not mix Category A, B1, B2/B2L, B3 or Category L module variants, or treat the aggregate 601-item study allocation as an official CAA examination total.
Rounding before the final step.
Guardrail: Do not mix Category A, B1, B2/B2L, B3 or Category L module variants, or treat the aggregate 601-item study allocation as an official CAA examination total.
Using a higher-level formula without understanding what each term represents.
Guardrail: Do not mix Category A, B1, B2/B2L, B3 or Category L module variants, or treat the aggregate 601-item study allocation as an official CAA examination total.
Memory anchors
Units First
Convert quantities to compatible units before calculation.
Ratio
Preserve the same relationship when scaling dimensions or quantities.
Rearrange
Isolate the required variable before substituting values.
Graph
Read axes, units, scale and trend before extracting a value.
Reasonableness
Compare the result with the expected order of magnitude and physical limit.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
A component costs £240 before a 15% reduction. What is the reduced cost?
Convert 0.375 to its simplest fraction.
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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