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JSS2: BASIC TECHNOLOGY - 1ST TERM

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  1. Definition of First Aid | Week 1
    7Topics
    |
    1 Quiz
  2. Rescue Operation | Week 2
    3Topics
    |
    1 Quiz
  3. Materials & Their Common Uses (Wood) | Week 3
    6Topics
    |
    1 Quiz
  4. Materials & their Common Uses (Metal) | Week 4
    5Topics
    |
    1 Quiz
  5. Uses of Common Alloys ( Brass & Bronze) | Week 5 & 6
    8Topics
    |
    1 Quiz
  6. Uses of Ceramics And Glass (Contd) | Week 7 & 8
    4Topics
    |
    1 Quiz
  7. Uses of Plastics | Week 9
    4Topics
    |
    1 Quiz
  8. Uses of Rubber | Week 10
    3Topics
    |
    1 Quiz
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Uses of Ferrous Metals:

1. High Carbon Steel: It is often referred to as shear resistant. It is used for manufacturing cutting tools, pliers, drills, punches, and hammerheads.

High-carbon-Steel-Drill-Bits

2. Mild Steel: Mild steel is soft to work with. It is used for manufacturing bolts, nuts, structural work, and non-cutting tools.

mild-steel-bolts-
Mild steel bolts.

3. Cast Iron: Cast iron is made from pig iron. It is wear-resistant. It is used for producing piston rings and cylinder blocks.

engine blocks

4. Wrought Iron: This metal can withstand sudden shock. It is used for making gates, railings, chains, shackles, and couplings. This property is called Toughness and it is opposite to brittleness.

Wrought Iron

Uses of Non- Ferrous Metals:

1. Zinc: Zinc is used as a coating for steel and for roofing since it is resistant to corrosion.

zinc roof
Zinc roof.

2. Tin: Tin is used in the production of enamel. Enamel is used to protect metals from corrosion and to protect car bodies.

Tin Can
Tin can.

3. Copper: Copper is used in the production of electrical conductors, switches, transformers, and telecommunications. 

Copper is malleable and can also be used for domestic heating systems, soldering-iron bits, and for decoration.

COPPER WIRE
Copper wires.

4. Lead: Lead is used for making lead pipes, water pipes, water tanks, in the manufacture of storage batteries, and ammunition.

lead pipe

5. Aluminium:It is light in weight and does not rust. It is used for manufacturing cooking pots/utensils, aircraft parts, corrugated roofs, electrical cables, and aluminium foils.

Aluminium is used as air-frame for modern aircrafts
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