Children's Health | Plumbing System Troubleshooting 101

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Question 1 of 8

1. Question
What is the most likely root cause if a sink will not stop dripping or has a continuous stream?
- faulty cold or hot water stem
- faulty mixing valve
- faulty supply lines
- faulty control or shutoff valve
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Question 2 of 8

2. Question
Which plumbing lines would be most impacted by a clogged plumbing drain line between the 3rd and 4th floors of a facility?
- drain lines on the 4th floor and above feeding into the drain line
- drain lines on the 3rd floor and below feeding into the drain lines
- all hot and cold water lines on the 4th floor and above
- only the deionized water lines on the 4th floor
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Question 3 of 8

3. Question
A new work order states that the toilet in an occupied patient room is clogged. What is the appropriate corrective action for this issue?
- (1) respond to the call, (2) don proper PPE, (3) attempt to clear the clog with a toilet auger, (4) test for proper operation, (5) and contact EVS to clean, if necessary
- (1) respond to the call, (2) allow the clog to soak for 30 to 60 minutes to soften items in the toilet, (3) attempt to clear the bowl with flushing, (4) use chemical treatment, if necessary, (5) and contact EVS to clean, if necessary
- (1) instruct the Nurse Manager to block the room, (2) place the work order on hold, (3) return to clear the clog once the room is unoccupied
- Contact a vendor to resolve the issue. The clog could be located further down the sewer line, which requires specialty equipment to clear it.
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Question 4 of 8

4. Question
What is the most likely root cause and solution if a flush valve toilet runs continuously?
- The flush valve is worn; replace the diaphragm.
- The flush valve is stuck; jiggle the handle until the valve is repositioned.
- The flush valve is worn; place penny or washer between the diaphragm and stem.
- The toilet is defective; replace the entire toilet.
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Question 5 of 8

5. Question
What is the appropriate corrective action if a faucet is dripping in a patient room?
- Repair or replace the stem valve for the leaking side.
- Chemically clean the fixture for mineral (scale) buildup.
- Replace the faulty fixture – corrosion damage is likely irreversible.
- Replace the O-ring around the body of the fixture.
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Question 6 of 8

6. Question
No hot water is reaching the pharmacy. What should be the first course of action?
- Verify the water heater serving the pharmacy is supplying adequate hot water temperature.
- Inspect the valves serving the pharmacy for proper operation.
- Inspect the fixtures in the pharmacy for proper operation.
- Verify adequate hot water supply temperature in the piping serving the pharmacy using a thermal imaging thermometer.
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Question 7 of 8

7. Question
Hospital employees are complaining that their locker room smells like a sewer, but all drains seem to be clear. What is the most likely cause of the odor?
- A p-trap for a floor drain is dry and needs to have water added.
- The backflow preventer was installed backwards.
- A domestic water line has leaked above and created moldy ceiling tiles in the area.
- A natural gas line has leaked nearby.
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Question 8 of 8

8. Question
A technician is replacing a stem in a patient room and sees water that has leaked out from the fixture. What should the technician do now?
- Turn off the water on the stop valves at the fixture.
- Locate and turn off the isolation valve for that zone.
- Use flexible tubing to redirect the water flow to a nearby shower or toilet until the sink is repaired and re-installed.
- Tighten or replace the worn seals around all fixtures and valves.
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Children’s Health | Plumbing System Troubleshooting 101

Children’s Health | Plumbing System Troubleshooting 101

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