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Workforce LibreTexts

1.E: Self Test 1

  • Page ID
    3299
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    • Contributed by Camosun College
    • Sourced from BCCampus (Download for free at http://open.bccampus.ca/find-open-textbooks)

    Self-Test 1

    1. Match the device on the left with its purpose on the right.
      1. Circuit breaker 1. Protects circuits
      2. Relay 2. Electric switch
      3. Solenoid 3. Variable control
      4. Rheostat 4. Movable core
    2. What best describes tapped or stepped resistors?
      1. They have two or more fixed values.
      2. They have only one unchangeable rating.
      3. They have a variable range of resistance.
      4. They are used to control charging systems.
    3. How is a fuse different from a circuit breaker?
      1. A fuse acts like a diode.
      2. A circuit breaker doesn’t need a ground.
      3. A fuse can be reset and a circuit breaker cannot.
      4. A circuit breaker can be reset and a fuse cannot.
    4. 6 gauge wire is smaller than 18 gauge.
      1. True
      2. False
    5. What are conductors normally made from?
      1. Steel
      2. Copper
      3. Soft iron
      4. Aluminum
    6. Receptacles are one-half of a two-piece multi-contact connector.
      1. True
      2. False
    1. What are circuit breakers, fuses, and thermal limiters all examples of?
      1. Relays
      2. Switches
      3. Receptacles
      4. Protection devices
    2. How many gauges of difference must there be between a fusible link and a conductor?
      1. 2
      2. 4
      3. 6
      4. 8
    3. Relays require a power circuit and a control circuit.
      1. True
      2. False
    4. What are transformers used for?
      1. To act like a relay
      2. To increase amperage
      3. To increase or decrease voltage
      4. To change the current from DC to AC
    5. Who is responsible for testing all electrical components?
      1. ITA
      2. NSA
      3. CSA
      4. DNA
    6. Closed means the circuit is complete and conducting.
      1. True
      2. False
    7. What voltage other than 120 V does a residential system use?
      1. 180 V
      2. 200 V
      3. 240 V
      4. 280 V