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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 total resistance of two 10-ohm resistors connected in parallel?

    Answer: 5 ohms

    Two equal resistors in parallel give half the value of one resistor.

  2. In a series circuit, what stays the same through every component?

    Answer: Current

    Current is identical at every point in a series circuit.

  3. What does a transformer's turns ratio determine?

    Answer: The ratio of primary to secondary voltage

    Voltage transforms in direct proportion to the turns ratio between windings.

  4. Which device protects a circuit by melting and breaking when current is too high?

    Answer: Fuse

    A fuse contains a metal element that melts under excessive current.

  5. What is the power dissipated by a 120 V appliance drawing 5 A?

    Answer: 600 W

    Power equals voltage multiplied by current (120 × 5 = 600 W).

  6. What is the primary function of a circuit breaker?

    Answer: To automatically interrupt overcurrent and be reset

    A breaker trips on overcurrent and can be reset rather than replaced.

  7. In North American residential wiring, what color is typically used for the grounding conductor?

    Answer: Green or bare

    Ground conductors are green, green with yellow stripe, or bare copper.