C&G 2365-202 Electrical Science and Principles


The second multiple choice exam of the level 2 is an introduction to electrical science at Level 2. The exam is a 40 question multiple choice online exam broken down into 7 different sections, these are:

Category Number of Questions
Know the principles of electricity 8
Know the principles of basic electrical circuits 6
Know the principles of electro- magnetism 6
Know the principles of basic mechanics 5
Know electrical quantities in Star Delta configurations 7
Know the operating principle of a range of electrical equipment 4
Know the principles of A.C theory 4


Revision List

The following items should form the mainstay of your revision programme:

  • SI Units
  • Mass and weight
  • Measuring and test instruments
  • Basic mechanics
  • Force, work, power, energy, efficiency
  • Electrical energy and power
  • Electron theory
  • Conductors and insulators
  • Electrical cable construction and properties
  • Current, voltage and resistance in series and parallel circuits
  • Power
  • Efficiency
  • Sine waves
  • Generation of electricity
  • Supply voltages
  • Transformers
  • Sources of electrical energy
  • National Grid
  • Ohms Law
  • Resistance and resistivity
  • Current, voltage and resistance in series and parallel circuits
  • Power
  • Electromagnetism
  • Magnetism and electricity
  • Motors, a.c. and d.c.
  • Inductance
  • Capacitance
  • Impedance
  • Power factor and correction
  • Transformers
  • KW, KVA and KVAr
  • Polyline systems
  • Star/Delta

Note: The above list is not exhaustive, we recommend working through the syllabus on the C&G website to ensure you cover all the areas.


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