Questions from the Engineering Technology Higher Level paper

• Outline two safety precautions to be observed when using cutting fluids in a machining process.
• Distinguish between metal ore concentration and metal ore extraction.
• Identify two factors that influence fatigue failure in metals.
• State the difference between a single-acting cylinder and a double-acting cylinder in pneumatic control.
• Define the term Young's Modulus of Elasticity.
• Explain the function of a heat sink in electronic circuit assembly.
• Select any two of the abbreviations shown and explain their meaning: (i) PCB (ii) uPVC (iii) SPST switch (iv) HSS
• Describe the importance of the colour coding associated with workshop safety signs.
• Describe the term elastic memory with reference to thermoplastics.
• What contribution did any one of the following make to technology: (i) James Dyson (ii) Igor Sikorsky (iii) Chester Carlson?