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Electrical Principals and Processes

Quiz by Ricky Fleet

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57 questions
Show answers
  • Q1
    What document should be referred to for specific wiring details of domestic heating controls?
    Building Regulations
    Part P
    Manufacturer's instructions
    User Instructions
    30s
  • Q2
    Which is the most likely supply voltage type and rating used for a central heating circulating pump?
    230V AC
    110V DC
    230V DC
    110V AC
    30s
  • Q3
    Which of the following would be found on a low voltage central heating wiring system?
    24V DC
    110V AC
    24V AC
    12V DC
    30s
  • Q4
    What type of domestic electrical circuit is shown in the diagram?
    Question Image
    Radial circuit
    Ring main circuit
    Lighting circuit
    Spur circuit
    30s
  • Q5
    What type of domestic electrical circuit is shown in the diagram?
    Question Image
    Ring main circuit
    Radial circuit
    Spur circuit
    Lighting circuit
    30s
  • Q6
    Which of the following earth arrangements uses an installation earth electrode as part of the earth fault path?
    TT
    TN-C-S
    TN-C
    TN-S
    30s
  • Q7
    What is the following earth arrangement?
    Question Image
    TN-C
    TN-C-S
    TN-S
    TT
    30s
  • Q8
    What is the following earth arrangement?
    Question Image
    TN-C-S
    TN-S
    TT
    TN-S
    30s
  • Q9
    Which one of the following conductors connects an installation main earthing terminal to the incoming copper mains water pipe?
    Supplementary bonding conductor
    High integrity protective conductor
    Main protective bonding conductor
    Circuit protective conductor
    30s
  • Q10
    Which one of the following would be used to connect 2 pipes together in a bathroom?
    High integrity protective conductor
    Supplementary bonding conductor
    Circuit protective conductor
    Main protective bonding conductor
    30s
  • Q11
    Which one of the following components operates under earth fault conditions only?
    RCD
    Circuit breaker
    HBC fuse
    RCBO
    30s
  • Q12
    Identify the protective device which operates when the system is overloaded?
    Question Image
    RCBO
    RCD
    HBC fuse
    Circuit breaker
    30s
  • Q13
    What is the component shown in the image?
    Question Image
    Cartridge fuse
    Circuit breaker
    RCD
    RCBO
    30s
  • Q14
    Out of the following cartridge fuses which would be used to provide overcurrent protection to a 230V domestic central heating circuit with a total load of 600W?
    16A
    6A
    13A
    3A
    30s
  • Q15
    Identify the marked component in the diagram
    Question Image
    Supplier’s cut out
    Consumer’s main earth terminal
    Consumer’s control unit
    Supplier’s energy meter
    30s

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