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Electrical 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 flashcards as text

  1. What is the current through a 120-volt circuit with a 60-ohm load?

    Answer: 2 amperes

    By Ohm's law, I = V/R = 120/60 = 2 amperes.

  2. Capacitance is measured in:

    Answer: Farads

    Capacitance is measured in farads.

  3. What is the main advantage of higher voltage for power transmission?

    Answer: Lower current and reduced line losses

    Higher voltage lowers current for the same power, cutting I-squared-R losses.

  4. A normally open relay contact will:

    Answer: Close when the coil is energized

    A normally open contact closes when the relay coil is energized.

  5. Which law states the sum of currents entering a node equals the sum leaving?

    Answer: Kirchhoff's Current Law

    Kirchhoff's Current Law states current into a node equals current out.

  6. What is the purpose of a circuit breaker?

    Answer: Interrupt current automatically during overload

    A breaker automatically opens the circuit on overcurrent and can be reset.

  7. Insulation resistance is best tested with a:

    Answer: Megohmmeter

    A megohmmeter applies high voltage to measure insulation resistance in megohms.