Electrical exams require you to remember a huge amount of specific information: regulation numbers, maximum Zs values, minimum insulation resistance readings, definitions, procedures, colour codes, and observation code classifications. This is factual knowledge that either you know or you do not — and flashcards are the most efficient way to learn and retain it.
The science behind flashcards is well established. Cognitive psychology research consistently shows that two techniques — active recall and spaced repetition — are the most effective methods for moving information from short-term to long-term memory. Every time you look at a flashcard question and try to recall the answer before flipping the card, you are using active recall. Every time you review the card again at the right interval, you are using spaced repetition.
For electricians studying for the 18th Edition (C&G 2382), the 2391 (Inspection and Testing), the AM2, or the EPA, flashcards transform revision from a passive, frustrating process into an active, efficient one.