Calculating mechanical advantage and velocity ratios. 4. Manufacturing and Joining Processes
This path focuses on complex vehicle systems. Exam questions often require labeling components like crankshafts or turbochargers and explaining concepts like "turbo lag" or the operation of automatic gearboxes.
Expect questions on the .
In the South African National Senior Certificate (NSC) curriculum, Mechanical Technology is a vital subject designed to bridge the gap between theoretical engineering and practical application. The structure of a typical 200-mark Grade 12 question paper reflects this by balancing safety protocols, material science, and technical specializations like Automotive, Fitting and Machining, or Welding and Metalwork. Core Components of the Examination
In the drawing and systems sections, look closely at arrows, dimensions, and hidden detail lines before writing your answer. mechanical technology 91 question paper exclusive
[Mechanical Technology 91] │ ├─► 1. Metallurgy & Materials (Heat treatment, testing) ├─► 2. Applied Mechanics (Gears, hydraulics, forces) └─► 3. Manufacturing (CNC, welding, machining calculations)
While a complete reproduction is not possible, we will analyze the first section (Part A) of the paper to provide a concrete example of the style and depth expected. Calculating mechanical advantage and velocity ratios
Identify first, second, and third-class levers and calculate their mechanical advantage ( Stress and Strain: Memorize the foundational formulas:
Three-phase power isolation, emergency stop procedures, and ventilation requirements for welding. 2. Materials and Heat Treatment The structure of a typical 200-mark Grade 12
Answer:
Read the prompt carefully. List all given values on the side of your page with their respective SI units. Convert any non-standard units immediately (e.g., millimeters to meters). Step 2: Identify the Core Formula