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Know the types of trap and associated requirements

Quiz by Ricky Fleet

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39 questions
Show answers
  • Q1
    What is the name of the trap in the image shown?
    Question Image
    P trap
    Running trap
    Bottle trap
    S trap
    30s
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    Delete
  • Q2
    What is the name of the trap in the image shown?
    Question Image
    P trap
    U trap
    Running trap
    Bottle trap
    30s
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    Delete
  • Q3
    What is the name of the trap in the image shown?
    Question Image
    P trap
    Bottle trap
    P trap
    Self-sealing valve
    30s
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    Delete
  • Q4
    What is the name of the trap in the image shown?
    Question Image
    Running trap
    P trap
    Self-sealing valve
    Anti-vacuum trap
    30s
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    Delete
  • Q5
    What is the name of the trap in the image shown?
    Question Image
    Anti-vacuum trap
    Running trap
    Self-sealing valve
    P trap
    30s
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    Delete
  • Q6
    What is the name of the trap in the image shown?
    Question Image
    Basin trap
    Shallow shower trap
    P trap
    Anti vacuum trap
    30s
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    Delete
  • Q7
    What is the name of the trap in the image shown?
    Question Image
    Running trap
    Straight through trap
    S trap
    P trap
    30s
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    Delete
  • Q8
    What is the purpose of a trap fitted to a sanitary appliance?
    It minimises the risk of blockage or leakage
    It provides a point where cleaning can occur
    It allows waste branches to be connected
    It prevents foul air from entering the building
    30s
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  • Q9
    What is the minimum recommended depth of trap seal for a shower tray with pipework connecting to a discharge stack?
    25mm
    75mm
    38mm
    50mm
    30s
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  • Q10
    Refer to the diagram shown. Loss of the seal at trap B is most likely to be as a result of which one of the following?
    Question Image
    Self siphonage
    Induced siphonage
    Compression
    Back pressure
    30s
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  • Q11
    Refer to the diagram shown. Loss of the seal at the trap is most likely to be as a result of which one of the following?
    Question Image
    Induced siphonage
    Self siphonage
    Back pressure
    Compression
    30s
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  • Q12
    Which one of the following would prevent back pressure in a primary ventilated stack system?
    Ensure that branch pipes are positioned opposite each other
    Make sure that a large radius bend is used at the base of the stack
    Install a wind cowl to the top of the stack ventilation pipework
    Install the WC at least six metres from the stack discharge pipework
    30s
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    Delete
  • Q13
    Which one of the following indicates the most likely cause of a basin losing its trap seal when emptied?
    Self siphonage
    Wavering out
    Compression
    Induced siphonage
    30s
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    Delete
  • Q14
    Appliances connected onto the lowest branch connection into a soil stack that is too close to the invert of the drain, will most likely lose their traps seals due to
    Momentum
    Induced siphonage
    Compression
    Self siphonage
    30s
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    Delete
  • Q15
    What type of trap seal loss is shown in the image?
    Question Image
    Momentum
    Back pressure
    Compression
    Self siphonage
    30s
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    Delete
  • Q16
    What type of trap seal loss is shown in the image?
    Question Image
    Induced siphonage
    Capillary action
    Wavering out
    Momentum
    30s
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    Delete
  • Q17
    What type of trap seal loss is shown in the image?
    Question Image
    Capillary action
    Evaporation
    Wavering out
    Compression
    30s
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    Delete
  • Q18
    What type of trap seal loss is shown in the image?
    Question Image
    Self siphonage
    Evaporation
    Compression
    Wavering out
    30s
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    Delete
  • Q19
    If a discharge branch has a gradient of 18mm per metre and the branch is 3 metres in length, what would the vertical drop distance be?
    54mm
    72mm
    18mm
    36mm
    30s
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  • Q20
    The maximum recommended length of a discharge pipe from a bath connected to a primary ventilated stack is
    5 metres
    3 metres
    6 metres
    4 metres
    30s
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    Delete

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