ENERGY
Meaning of Energy Energy is defined as the ability or capacity to do work. The unit of energy is Joules (J) Sources of Energy There are two main sources of… Read More »ENERGY
JSS 1 Basic Technology (1st, 2nd & 3rd Term)
Rubber and plastics
Rubber vs. Plastic In the past, people have seen the progress of technology. From the simple usage of wood and cement to the invention of metal, mankind has really made… Read More »Rubber and plastics
Properties of ceramics and glass
Ceramic Material Characteristics Ceramics and glasses are inorganic, nonmetallic materials consisting of metallic and nonmetallic elements bonded primarily with ionic and covalent bonds. These high strength bonds give rise to… Read More »Properties of ceramics and glass
Metals
Metals – Ferrous and Non Ferrous 1. Metals. Exercise 1: Make a list of all the different metals that you know about. 2. Metals. Two main groups, 1.Ferrous. 2.Non-Ferrous. 3. Metals Ferrous… Read More »Metals
Properties of metals
Differences and similarities between metals and non-metals Properties: Metals: Non-metals: Strong Brittle Malleable and ductile Brittle React with oxygen to form basic oxides React with oxygen to form acidic oxides… Read More »Properties of metals
Properties of materials
What is wood? You often hear people grumbling about money and all kinds of other things that “don’t grow on trees”; the great thing about wood is that it does grow on… Read More »Properties of materials
Workshop safety
Rules and Regulations 1) Never work alone in the workshop, work at least in pairs. This is so because in case of industrial/workshop accident the other partner will be a… Read More »Workshop safety
Work Shop Safety
Workshop rules and safety considerations Workshop safety is everyone’s responsibility, the following rules have been put in place to ensure the safety of all students and staff. Please read the… Read More »Work Shop Safety
Safety guidelines
Footways or footpaths (including any path along the side of a road) should be used if provided. Where possible, avoid being next to the kerb with your back to the… Read More »Safety guidelines
Technology
Technology (“science of craft”, from Greek τέχνη, techne, “art, skill, cunning of hand”; and -λογία, -logia[2]) is the collection of techniques, skills, methods, and processes used in the production of goods or services or in the accomplishment of objectives, such as scientific investigation. Technology can be… Read More »Technology
VOLTAGE, RESISTANCE, INDUCTANCE AND CAPACITANCE CONTENT
VOLTAGE (POTENTIAL DIFFRENCE) Difference between points in electric field: the work done in moving a unit electric charge between two points in an electric field. Electric potential: electric potential expressed… Read More »VOLTAGE, RESISTANCE, INDUCTANCE AND CAPACITANCE CONTENT
BASIC COMPONENTS OF ELECTRIC CIRCUIT
ELECTRIC CIRCUITS Electric circuit can be defined as the path provided for easy flow of electric current. It is for conversion of the electric current into useful purposes such as… Read More »BASIC COMPONENTS OF ELECTRIC CIRCUIT
MAINTENANCE
DEFINITION OF MAINTENANCE Maintenance in engineering work is defined as the functions that should be carried out every day in order to keep the plant or any engineering equipment in… Read More »MAINTENANCE
HOLDING DEVICES
In order to work safely and conveniently on any work piece, it needs firmly secured. The devices used for holding these work piece firmly are called holding vices. Holding devices… Read More »HOLDING DEVICES
METAL WORK – HAND TOOL
METAL WORK- HAND TOOL – CUTTING AND DRIVING TOOLS CUTTING TOOLS Cutting tools are tools used for cutting materials by either sawing, filing, chiseling, scraping. Cutting tools include the following:… Read More »METAL WORK – HAND TOOL
METAL WORK
METAL WORK- HAND TOOL – MARKING OUT AND MEASURING TOOLS Metal is one of the materials used in technology for construction and fabrication of devices. Metal as a material can… Read More »METAL WORK
WOODWORK HAND TOOLS
WOODWORK HAND TOOLS – BORING TOOLS, CUTTING TOOLS BORING TOOLS Boring tools are the tools used for making holes on wood. The major tzpes are The brace The bits Gimlet… Read More »WOODWORK HAND TOOLS
REVISION
REVISION ___ is a universal language used for communication among technical people (a) Scaling (b) Technical drawing (c) Sketching (d) Oblique. Technical people include the following except (a) engineers (b)… Read More »REVISION
BUILDING MATERIALS & BUILDING COMPONENTS
FLOORS This is a flat bottom surface in or on any structure. It is a rigid building assembly that divides space horizontally into stories. It forms the bottom of a room.… Read More »BUILDING MATERIALS & BUILDING COMPONENTS
TYPES OF BUILDINGS & BUILDING MATERIALS
Types of building Bungalow: It is dwelling built in a style developed from that of a form of rural house in India. The original bungalow typically has one story, few… Read More »TYPES OF BUILDINGS & BUILDING MATERIALS