2026 Grade 10 Power Mechanics Mid Term 2 Exam with Marking Scheme

This paper covers the following topics:

• Section A
  • Introduction to Power Mechanics — meaning of the subject, evolution of motor vehicles, career paths
  • Workshop safety — classifying safety signs as mandatory, warning, or prohibition; PPE required when working beneath a vehicle
  • Tyre markings — interpreting components of tyre code (205, 55, R, 16); identifying radial and cross-ply arrangements; true/false on tyre facts (tubeless, under-inflation, rotation, aspect ratio)
  • Technical drawing tools — matching drawing tools to functions (T-square, set square, compass, protractor); identifying types of loci; types of scales; diagonal scale
• Section B
  • Workshop layout — naming floor markings, essential workshop sections, safety precautions for flammable substances, separation of office from work area, identifying safety gear
  • Vehicle classification — classifying vehicles by function; identifying exterior parts of a car (labeled diagram); roles of emergency vehicles; distinguishing station wagon and convertible
  • Chassis design — naming types of chassis (ladder, backbone/monocoque); functions of a chassis; identifying shapes of frame cross-sections; how crumple zones reduce injuries
  • Technical drawing — constructing a circle from intersecting chords and drawing a tangent from an external point; constructing a tangent at 60° to another tangent; definition and construction of an involute to a circle (30mm diameter); drawing a tangent to a point on an involute
  • Blending in technical drawing — definition; vehicle interior safety features; importance of locus of mechanisms in Power Mechanics.
• Total Marks: 80 (Section A: 30 marks; Section B: 50 marks)
• Structure:
  • Section A (30 marks) — Short-answer questions; all compulsory
  • Section B (50 marks) — Structured/extended-response and technical drawing questions; all compulsory