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Know the basic principles of electricity

Quiz by Ricky Fleet

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15 questions
Show answers
  • Q1
    What has a sinusoidal wave form?
    Conductive heat transfer
    Convection heat transfer
    AC electricity
    DC electricity
    30s
  • Q2
    The SI unit for measuring electrical current is...
    Watt
    Joule
    Ohm
    Ampere
    30s
  • Q3
    What would the fuse size be for a domestic appliance that has a power rating of 3kW?
    5 amp
    10 amp
    13 amp
    3 amp
    30s
  • Q4
    Which one of the following can create a DC current?
    Nuclear power station
    Photovoltaic cells
    Gas fired power station
    Diesel generator
    30s
  • Q5
    Which of the following describes a characteristic of an AC circuit?
    The electrons always flow from positive to negative
    The polarity of the electrons never reverses
    It has a sine wave form
    The electrons flow in a constant direction
    30s
  • Q6
    What is the electrical resistance to a circuit with a current of 4A and voltage of 230V?
    115 Ohms
    0.017 Ohms
    920 Ohms
    57.5 Ohms
    30s
  • Q7
    The electricity supply to domestic dwellings in the UK is...
    250v AC
    110v DC
    230v AC
    150v AC
    30s
  • Q8
    What is the correct over protective device rating for a 9.8kw shower on a 230V supply?
    15 amp
    45 amp
    30 amp
    40 amp
    30s
  • Q9
    A 230V AC has hertz frequency of...
    10Hz
    40Hz
    50Hz
    25Hz
    30s
  • Q10
    What is the resistance in a 15 amp load 230V circuit?
    30.47 Ohms
    20.52 Ohms
    15.33 Ohms
    3450 Ohms
    30s
  • Q11
    When earthing the mains cold water and gas pipes, what size single-core earth cable is required?
    4mm
    8mm
    6mm
    10mm
    30s
  • Q12
    Changing AC voltage is done by using a...
    Transformer
    Motor
    Pump
    Generator
    30s
  • Q13
    The unit of electrical charge is...
    Watt
    Volt
    Ampere
    Coulomb
    30s
  • Q14
    The unit of electrical potential is...
    Watt
    Volt
    Ohm
    Ampere
    30s
  • Q15
    Changing DC voltage to AC voltage (Used in solar photovoltaic cells) requires an...
    Voltage tester
    Transformer
    Inverter
    Battery
    30s

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