Basic Electrical Concepts Flashcards
Electrical Industry & Basic Concepts
Principal areas of Electrotechnology industry include (attempt to name three):
Construction Communication services Electrical generation, transmission and distribution Manufacturing Mining Chemical Commercial Industrial Housing/domestic Resources Transport and logistics Maritime Health and community services Wholesale and retail Sustainable and Renewable Energies
The major occupations in the electrotechnology trades include:
Electrician Electrical Fitter Electrical Mechanic Electronics Technician Communications Technician Computer System Technician Refrigeration and Air Conditioning Mechanic Information Technology Technician Instrumentation and Control Technician Data and Voice Technician Telecommunications Technician
A basic electromagnetic generator consists of a:
magnet that rotates in the centre of several stationary coils of conductive wire.
In thermal power stations, how is electricity produced?
high pressure steam is used to rotate a turbine which is coupled to the magnet. As the magnet is rotated, electrical energy is ‘electromagnetically induced’ into the stationary coils.
Name the four non-renewable energies & five renewable energies:
Black coal Brown coal Natural Gas Nuclear Wind Hydro Geothermal Tidal/wave Photoelectric/Solar
State the five points of the transmission & distribution of electricity.
Power Station Yard Transformer Electricity Transmission Sub-station Electricity Distribution
How can electricity be utilised?
Luminary
Heating
Motion
Electro-plating
Atoms are made up of:
Protons, Neutrons & Electrons
What causes the phenomenon of electricity?
Movement of charged particles (Electrons) from a point that is negatively charged (lots of electrons) to a point that is positively charged (not many electrons).
Name the five basic terms of electricity:
Conductor Insulator Voltage Current Resistance
What is current?
The flow of electrons from one point to another.
What is static electricity?
Fricition causuing one insulators to become positively charged and the other to become negatively charged.
What are the prerequisites of static electricity?
Close proximity to a conductor
Insulator storing a charge
Friction on inducing a charge
Give an example of static electricity:
Lightnig due to friction produced in the clouds.
Friction between shoes and carpet
