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
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Which component of power systems converts mechanical energy into electrical energy?
Transformers
Transmission lines
Generators
Distribution systems
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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
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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
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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
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Which system delivers electricity to homes and businesses at lower voltages?
Transmission lines
Generators
Transformers
Distribution systems
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What is demonstrated during practical examples of power systems?
Cooking techniques
Software development
Operation of generators and transformers
Automotive mechanics
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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
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What role do substations play in power systems?
Generating electricity
Distributing electricity to homes
Transforming voltage levels
Transporting electricity over long distances
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Which energy sources can generators convert into electricity?
Water only
Fossil fuels, renewables and nuclear
Solar energy only
Wind energy only
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