Summary

• Description:

  The MS Word document comprises Grade 10 Power Mechanics Mid Term 2 2026 Exam with Marking Scheme. The PDF version is also available upon your request. The marking scheme is in a different document.

  This exam assesses Grade 10 Power Mechanics learners on motor vehicle history, workshop safety, tyre markings, technical drawing (loci, tangents, involutes), vehicle classification, chassis design, and vehicle safety features — developing the technical and drawing competencies required under the KCBE Senior School applied learning pathway.

  • Month Administered: June 2026
  • Duration: 2 Hours 30 Minutes
  • 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

  It 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
• Length:

  9 pages
• Category:

  Exams
• Level:

  Grade 10
• Subject:

  POWER MECHANICS
• Posted By:

  Caleb_Peter

Enter your details below to initiate a payment using MPESA.