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Phase 2 Principles of Electricity in the Plumbing and Domestic Heating Systems Industry

Quiz by Joe Fantini

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35 questions
Show answers
  • Q1
    What is the unit of measurement for electrical power?
    Watt
    Ampere
    Volt
    Ohm
    30s
  • Q2
    Which of the following is a safety device used to prevent electrical overload?
    Resistor
    Fuse
    Capacitor
    Transformer
    30s
  • Q3
    What is the purpose of an earth connection in electrical systems?
    To reduce resistance in circuits
    To enhance energy efficiency
    To increase voltage levels
    To provide a safe path for current to ground in case of a fault
    30s
  • Q4
    What component is used to control the flow of current in a circuit?
    Inductor
    Switch
    Capacitor
    Diode
    30s
  • Q5
    What does the term 'alternating current' (AC) refer to?
    Electric current that flows in one direction only
    Current that is stored in a battery
    Current that is only used for small devices
    Electric current that reverses direction periodically
    30s
  • Q6
    What is the primary purpose of a circuit breaker?
    To enhance electrical resistance
    To amplify electrical signals
    To automatically shut off electrical flow in case of overload
    To convert AC to DC
    30s
  • Q7
    Which type of cable is commonly used for wiring in domestic installations?
    Twin and Earth cable
    Coaxial cable
    Fiber optic cable
    Ribbon cable
    30s
  • Q8
    What is the function of a thermostat in a heating system?
    To regulate the temperature by controlling the heating output
    To filter air quality
    To measure humidity levels
    To convert electrical energy to heat
    30s
  • Q9
    What is the main purpose of a gain control in electrical systems?
    To increase electrical resistance
    To convert energy types
    To change electrical frequency
    To adjust the level of signal strength
    30s
  • Q10
    What is the purpose of a voltage regulator in an electrical system?
    To convert AC to DC
    To increase current flow
    To store electrical energy
    To maintain a constant output voltage
    30s
  • Q11
    What is the purpose of a residual current device (RCD) in plumbing and heating systems?
    To increase pressure
    To regulate water flow
    To prevent electric shock
    To measure temperature
    30s
  • Q12
    Which of the following materials is commonly used for electrical wiring in domestic heating systems?
    Plastic
    Copper
    Wood
    Rubber
    30s
  • Q13
    What does the term 'earth wire' refer to in electrical systems?
    A wire used for insulation
    A wire that carries current
    A wire that connects to water supply
    A safety wire that prevents electric shocks
    30s
  • Q14
    What does the term 'voltage' measure in an electrical circuit?
    The resistance in a circuit
    The electrical potential difference
    The flow of electric current
    The power consumed
    30s
  • Q15
    In the context of domestic heating systems, what is the primary function of a thermostat?
    To regulate temperature
    To control water flow
    To measure humidity
    To increase pressure
    30s

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