WorksheetsPPT 10 - Replace defective components
Total questions: 37
Worksheet time: 19mins
What should you use to replace a washer in a chrome or gold tap to avoid scratching the finish?
Regular pliers
Soft-jaw pliers
A hammer
A screwdriver
What is a common sign that a washer in a tap or FOV is worn or broken?
Increased water pressure
Dripping from the outlet
No water flow
Loud noises
What is a common symptom of defective tap seating?
Water pressure increase
Dripping from outlet or overflow
No water flow
Loud noises
What tool can be used to fix a defective tap seating?
Hammer
Reseating tool
Screwdriver
Wrench
What should be done if a tap is badly damaged?
Paint it
Replace the whole tap
Tighten the screws
Ignore it
What does it mean if a tap is dripping from the body rather than the outlet?
The tap is not properly closed.
The fibre or rubber washer is damaged.
The water pressure is too high.
The outlet is blocked.
How can you identify if the fibre or rubber washer in a tap is damaged?
By tightening the tap.
By increasing the water pressure.
By undoing the cover.
By replacing the tap.
What is a common cause of dripping from the head in rising spindle taps?
Faulty body washer
Packing glands
Loose handle
Broken spout
In non-rising spindle taps, what component is typically responsible for dripping?
O rings
Valve seat
Spout
Handle
What is the recommended solution for a dripping tap caused by packing glands or O rings?
Tightening the handle
Replacing the spout
Re-packing or replacing
Adjusting the water pressure
What does the term "letting by" refer to in plumbing?
A valve that is completely shut off
A valve that is letting some water by, even when it is shut off
A valve that is leaking gas
A valve that is functioning perfectly
Which component is associated with "letting by" due to a warning pipe dripping?
FOV
Radiator
Boiler
Shower head
What is a common issue with a quarter-turn tap?
It leaks from the handle.
It drips from the outlet.
It makes noise when turned.
It is difficult to turn.
What is a common solution for a dripping quarter-turn tap?
Tightening the handle.
Replacing the entire tap.
Replacing the discs or the body.
Adding more washers.
What can insecure pipework create in a plumbing system?
High and low spots (air locks and debris)
Constant water flow
Increased water temperature
Reduced water pressure
What is a water hammer in plumbing?
Surges of pressure causing a knocking noise
A tool used to fix pipes
A type of water pump
A method of water filtration
What does a water murmur cause in a high-pressure system?
An FOV to open and close quickly
A constant flow of water
A decrease in water temperature
A steady water pressure
What is one effect of air moving around the pipework in a plumbing system?
It reduces water pressure.
It creates additional system noise.
It increases water temperature.
It prevents water flow.
In what type of system are air locks more likely to occur?
High-pressure systems
Low-pressure systems
Medium-pressure systems
Balanced-pressure systems
What might happen if an appliance is loose in plumbing?
It could increase water temperature
It could come away from the wall and create a leak
It could improve water quality
It could reduce water flow
What effect can constant vibration due to water flow have on plumbing components?
It could tighten connecting nuts
It could loosen connecting nuts
It could increase water pressure
It could reduce noise
What should be done with broken clips in plumbing?
They should be painted
They should be ignored
They should be replaced
They should be tightened
What should be done to isolate the whole house during a burst?
Isolate at incoming stop valve
Turn off all taps
Call a plumber immediately
Use a water pump
What can cause blockages in pipework and components?
Limescale
Rust
Sand
Air bubbles
What is one consequence of using incorrectly sized pipework?
Increased water temperature
Reduced flow rate to an appliance
Enhanced water quality
Improved energy efficiency
What can occur in low-pressure systems if high spots are left in pipework?
Air lock
Water leak
Pipe burst
Increased water flow
What might a customer experience at the outlet if an air lock occurs?
Spluttering of water or no water at all
Continuous water flow
Increased water pressure
Water temperature change
What should be done before installing any appliances to ensure they work correctly?
Test the pressure and flow rates near the incoming main and at the appliance location.
Install the appliance and check for leaks.
Only test the pressure at the appliance location.
Test the flow rates after installation.
What is the minimum pressure required for a combination boiler to work correctly?
1 bar
2 bar
0.5 bar
1.5 bar
What is the purpose of Planned Preventative Maintenance (PPM) in larger/commercial systems?
To increase energy consumption
To ensure prearranged maintenance schedules
To reduce the lifespan of equipment
To create unexpected breakdowns
Which of the following is NOT a check included in Planned Preventative Maintenance (PPM)?
Inspecting terminals and valves
Cleaning filters and strainers
Increasing water pressure
Inspecting water levels
Which of the following is a task involved in Planned Preventative Maintenance (PPM)?
Painting walls
Rewashering
Installing new systems
Landscaping
What should be done if a system is isolated during planned preventative maintenance?
Turn the valve on immediately.
Label it as ‘System off – do not turn valve on’.
Ignore the system.
Remove all labels.
What records should be maintained during planned preventative maintenance?
Only temperature records.
Only pressure records.
Records of pressure, flow rate, temperatures, and work carried out.
No records are necessary.
Who should be kept informed at all times during planned preventative maintenance?
Only the householder.
Only the customer.
Only the company.
The householder, customer, or company.
Which of the following is considered an unplanned emergency in plumbing?
Scheduled maintenance
Burst pipes
Regular inspections
System upgrades
What does CWSC stand for in the context of plumbing emergencies?
Cold Water Storage Cistern
Central Water Supply Control
Continuous Water Supply Channel
Controlled Water System Circuit
