Introduction to Power Systems - JSS2 Basic technology Past Questions and Answers - page 1
What is the primary function of power systems?
Transmitting water
Generating mechanical energy
Producing and distributing electrical energy
Transporting gas
Which component of power systems converts mechanical energy into electrical energy?
Transformers
Transmission lines
Generators
Distribution systems
What is the purpose of transformers in power systems?
Generating electricity
Distributing electricity to homes
Stepping up or down voltage levels
Transmitting electricity over long distances
How do transmission lines contribute to power systems?
They generate electricity
They distribute electricity to homes
They convert energy into electricity
They transport electricity over long distances
Why are high-voltage transmission lines preferred for long-distance electricity transport?
To reduce energy consumption
To increase energy production
To minimise energy losses
To speed up energy distribution
Which system delivers electricity to homes and businesses at lower voltages?
Transmission lines
Generators
Transformers
Distribution systems
What is demonstrated during practical examples of power systems?
Cooking techniques
Software development
Operation of generators and transformers
Automotive mechanics
How do power systems support economic growth and daily activities?
By reducing energy demand
By increasing water supply
By providing reliable electricity supply
By improving transportation systems
What role do substations play in power systems?
Generating electricity
Distributing electricity to homes
Transforming voltage levels
Transporting electricity over long distances
Which energy sources can generators convert into electricity?
Water only
Fossil fuels, renewables and nuclear
Solar energy only
Wind energy only