Basic Technology Year One

KIKAAYA VOCATIONAL SCHOOL END OF TERM EXAMS 2008 BASIC- TECHNOLOGY YEAR ONE INSTRUCTIONS: • Do all numbers with in 2½ hrs. 1(a). What are the precautions taken when dealing with open pits and falling objects? (b) State the materials and at- least two reasons as to why the following components are made from:(i) Piston (ii) Cylinder block (iii) Battery plates (iv) Tyres (v) Wind screen. 2(a). List a numberly of precautions taken when using a hand file and it’s care after. (b). Outline five cutting grades and using sketches to explain the methods of filling. 3(a). Write any 10 locking devices you know. (b). Explain possible procedures would you use to remove a broken stud from the cylinder head. 4(a). Note at least two products from the following materials:(i) Asbestos (ii) Synthetic rubber (iii) Brass (iv) Nylon (v) Copper (b). Define:(i) Ductility (ii) Hardness (iii) Brittleness (iv) Malleability (v) Elasticity. 5(a). Define the term welding and outline a numbery of safety precaution when welding. (b). Draw a well labeled diagram of Ace- oxygen cylinders.

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