WorksheetsTesting and Decommissioning
Total questions: 10
Worksheet time: 5mins
The first step in soundness testing of rigid pipes is:
Visual inspection
Hydrostatic testing
Ultrasonic testing
Pressure testing
After filling the system with water, you should:
Check for leaks
Start the engine
Drain the water
Add more water
Fill in the blank: Pump system up to 1.5 times the _______ pressure.
maximum
minimum
average
standard
What should be done if there is a pressure drop during testing?
Increase the pressure immediately
Stop the test and check for leaks
Ignore the pressure drop
Continue testing at lower pressure
What is the first step in the soundness testing of plastic pipes (polybutylene)?
Pump system to 1bar
Slowly fill the system with water
Increase pressure to 1.5 times working pressure
Walk around system and check for leaks
During Test B, after how many minutes should you inspect the pressure loss initially?
15 minutes
30 minutes
60 minutes
120 minutes
Fill in the blank: After re-filling the system, open the kitchen tap and allow water to run until clear of ________.
debris/colour
air bubbles
rust
sediment
What is the first step in the flushing and disinfecting process?
Identify the area to be disinfected
Prepare disinfectant solution
Flush the system with water
Inspect the equipment
Pressure is checked according to the instructions by:
using a pressure gauge
listening for air leaks
feeling for vibrations
observing the pressure indicator
Fill in the blank: Open ends must be _______ during the decommissioning process.
sealed
opened
ignored
painted
