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Electrical Knowledge Flashcards

7 cards from real Ramsay Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Electrical Knowledge flashcards as text

  1. What is the result of a short circuit?

    Answer: A sudden large increase in current

    A short bypasses the load, causing very high current to flow.

  2. Which material is the best electrical conductor among these?

    Answer: Copper

    Copper is a highly conductive metal used widely in wiring.

  3. What does capacitance measure?

    Answer: The ability to store electric charge

    Capacitance is the amount of charge stored per volt, in farads.

  4. In an AC waveform, what does RMS voltage represent?

    Answer: The equivalent effective DC heating value

    RMS gives the effective value that produces the same heating as DC.

  5. What is the function of a relay?

    Answer: To use a small signal to switch a larger circuit

    A relay is an electrically operated switch controlled by a coil.

  6. If voltage is held constant and resistance doubles, what happens to current?

    Answer: It halves

    By Ohm's law, current is inversely proportional to resistance.

  7. Why must conductors be properly sized for their load current?

    Answer: To prevent overheating and fire

    Undersized wire overheats from resistance and can cause a fire.