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Understand the key requirements of testing and decommissioning of domestic cold water systems

Quiz by Ricky Fleet

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13 questions
Show answers
  • Q1
    What would this item be used to test?
    Question Image
    Pressure
    PH value
    Category of water
    Flowrate
    30s
  • Q2
    When decommissioning a system, the correct procedure is to:
    Inform the customer first then drain the system
    Drain the system down then inform the customer
    Use a pump to drain down quickly
    Turn off the water quickly to save any wasted water
    30s
  • Q3
    On the completion of a new cold water installation, the system has been proven sound. What would the next course of action be?
    Hand over to the customer.
    Visual inspection with the customer
    Flush the pipework out then hand over to the customer
    Prepare the benchmark certificate
    30s
  • Q4
    One of the major problems when leaving a dead leg in a cold water pipe is:
    Electrolytic corrosion
    Possible bacterial growth
    Reduction in water flow
    Pitting of pipework
    30s
  • Q5
    While installing pipework in a property, you are called off site to another job. What would be the correct course of action with any open-ended pipework?
    Be as quick as you can to return.
    Cap off with a push fit fitting
    Warn the customer not to interfere with any pipework
    Place a warning label on every open end
    30s
  • Q6
    What is the tool shown used to measure?
    Question Image
    Temperature
    Flowrate
    Backflow
    Pressure
    30s
  • Q7
    Water regulations state the test procedures for rigid pipework (copper/LCS). Which one of the following is the correct procedure?
    1.5 times maximum working pressure for 1 hour after stabilisation
    2 times maximum working pressure for 2 hours
    1.5 times maximum working pressure for 2 hours after stabilisation
    1.5 times maximum working pressure for 3 hours
    30s
  • Q8
    Read the following list of actions. 1. Release pressure and remove equipment 2. Pump system to required test pressure 3. Connect test equipment to system and fill with water 4. Observe the test pressure for the required period Put them in the correct order for hydraulic testing procedures.
    1234
    3241
    2134
    2413
    30s
  • Q9
    The Water Regulations state that the test period for copper pipework shall be?
    30 minutes
    60 minutes
    120 minutes
    180 minutes
    30s
  • Q10
    Place the following list in the correct order in which you would drain a cold water system. 1. Make sure system is empty 2. Inform the customer 3. Isolate the water system 4. Find an appropriate point and drain system
    1234
    2413
    4213
    2341
    30s
  • Q11
    Why do we flush out the pipework before final handover to the customer?
    To prevent poisoning from chlorine
    To add flux so that the system works efficiently
    To remove flux and particles which may affect the system
    To check the pipework is full
    30s
  • Q12
    What must be carried out before a pressure test on a pipework system?
    Temperature tests
    Visual inspection
    Flush out pipework
    Tea break
    30s
  • Q13
    What could lead to the growth of bacteria/legionnaires disease in cold pipework?
    Dead ends
    Broken legs
    Insufficient clipping
    Dead legs
    30s

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