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WorksheetsMaintenance Inspection Quiz
Total questions: 70
Worksheet time: 35mins
What should be inspected if the flow rate is less than the required manufacturer's instructions or if a customer notices a drop in the flow rate?
Temperature settings on thermostat
Limescale blockages
Filters cleaned
All of the above
Which of the following is NOT listed as a potential cause for poor flow rate?
Temperature settings on thermostat
Limescale blockages
Filters cleaned
Incorrect installation
What is one of the indicators that an inspection is needed for maintenance?
Increase in temperature
Drop in flow rate
Noise from the system
Change in color of the fluid
What can cause unbalanced pressure in manually controlled showers?
Properly balanced pressure
Debris partially blocking the feed pipework
Regular maintenance
Correct temperature settings
Which of the following is NOT listed as a maintenance indicator for showers?
Temperature settings on thermostat
Limescale blockages
Filters cleaned/pipework inspected
Water pressure settings
What can affect the flow rate and temperature in manually controlled showers?
Balanced pressure
Unbalanced pressure due to debris or damaged pipework
Regular use
Proper lubrication of parts
Which maintenance task involves ensuring that the parts move smoothly?
Temperature settings on thermostat
Limescale blockages
Filters cleaned/pipework inspected
Lubrication of parts
What can cause an isolation valve to pass water?
Build-up of limescale
Lack of lubrication
Incorrect installation
Overuse of the valve
Which of the following is NOT a recommended maintenance step for a valve?
Dismantle valve
Remove debris or lime scale
Check seals on shower body
Increase water pressure
What should be done if an isolation valve is old or hasn’t been closed for a period of time?
Replace the entire plumbing system
Inspect and maintain the valve
Ignore the valve
Increase the water flow
What is one of the causes of a valve not closing fully?
Excessive water pressure
Build-up of limescale
Incorrect valve size
Overuse of the valve
Which part of the valve might be damaged, causing it to pass water?
Handle
O ring
Body
Spout
What are some common causes of leaks in components?
Poor installation, corrosion, lack of insulation, freezing, and loosening over time
Overheating, excessive lubrication, and over-tightening
Incorrect material selection, excessive pressure, and lack of maintenance
Overuse, improper storage, and exposure to sunlight
Which of the following is NOT a recommended action to address leaks in components?
Tighten compression fitting nut
Repack glands/O rings
Replace part
Increase pressure
What is one of the maintenance actions mentioned for dealing with leaks?
Increase the temperature
Lubricate parts
Paint the components
Reduce the pressure
What causes expansion noise in hot water or central heating pipework?
The pipes contracting as cold water passes through them
The pipes expanding as heated water passes through them
The pipes vibrating due to water pressure
The pipes rusting over time
Which of the following is NOT a recommended inspection for addressing expansion noise in pipework?
Inspect clips/brackets
Inspect notching
Inspect insulation and padding
Inspect for rust
What is the maximum flow velocity of water to avoid audible noise according to BS6700?
2 m/s
3 m/s
4 m/s
5 m/s
What can be used to reduce noise when cisterns refill?
Increase the pipe diameter
Install a pressure reducing valve
Use collapsible silencers
Decrease the pipe diameter
Which of the following is a method to reduce flow noise in water systems?
Decrease the pipe diameter
Increase the pipe diameter
Increase the water pressure
Use non-collapsible silencers
What is one of the suggested solutions to reduce noise in water systems?
Increase the water temperature
Install a pressure reducing valve
Use a larger cistern
Decrease the water flow
What is a common complaint when the CWSC is refilling after hot water has been used?
Water hammer
Air lock
Low water pressure
Leaking tap
What can cause a juddering sound in the pipework as the FOV shuts off?
Air bubbles
Water hammer
Loose pipe fittings
High water pressure
Which of the following is NOT a suggested action to address water hammer?
Inspect FOV and tap washer
Install flow restrictor
Change to an equilibrium valve
Increase water pressure
What happens if the thermostat fails open?
The customer will have no hot water.
The temperature will continue to rise.
The water will become too cold.
The system will shut down completely.
What is a potential danger if the thermostat fails closed?
The water will become too cold.
The temperature will continue to rise to dangerous levels.
The system will shut down completely.
The customer will have no hot water.
What should be done if the thermostat fails?
Replace the cylinder stat.
Replace the water heater.
Replace the entire system.
Replace the vent.
Which of the following is NOT an indicator of thermostat failure?
No hot water.
Hot water too hot.
Cold water warming up.
Cold water too cold.
What is a common fault in immersion elements in direct cylinders?
Overheating
No hot water
Excessive noise
Water leakage
What is an indicator of immersion element failure?
Water leakage
Excessive noise
Fuse blowing
Overheating
What should be done to fix an immersion element failure?
Replace the cylinder
Replace immersion, complying with Building Regulations Part P
Add more insulation
Increase water pressure
What is a common cause of no hot water in a heating system?
Faulty thermostat
Failure of heat source
Blocked pipes
Low water pressure
What should be checked first if there is no hot water due to a failure of the heat source?
Water pressure
Thermostat settings
Fuse and time clock settings
Radiator valves
Who should be arranged to rectify a boiler issue?
An electrician
A plumber
A Gas Safe engineer
A handyman
What regulation must be complied with when replacing an immersion heater?
Building Regulations part A
Building Regulations part B
Building Regulations part P
Building Regulations part C
What happens if the coil fails in the system described?
The pressure from the CWSC is less than the pressure from the F&E cistern.
Water is forced out of the primary system.
The warning pipe on the F&E discharges.
The hot water remains clear.
What is an indicator of a coil failure in the system?
F&E overflow is not dripping.
Hot water is clear.
F&E overflow is dripping and hot water is discoloured.
The pressure from the CWSC is less than the pressure from the F&E cistern.
What should be done if the coil fails?
Replace the cylinder with a current approved part L cylinder.
Increase the pressure from the CWSC.
Decrease the pressure from the F&E cistern.
Clean the warning pipe on the F&E.
What is a consequence of losing the air bubble in a single feed cylinder?
The hot water will be discoloured when drawn off.
The pressure relief valve will discharge when the water is heated.
The system will not need draining.
The air bubble will automatically reinstate.
What happens with the unvented cylinder when the water is heated and the air bubble is lost?
The hot water will be discoloured when drawn off.
The pressure relief valve will discharge.
The system will not need draining.
The air bubble will automatically reinstate.
What is the first step to reinstate the air bubble in both single feed and unvented cylinders?
Refill the system.
Drain the secondary system to the base of the hot water cylinder.
Replace the hot water cylinder.
Heat the water.
What should be done after draining the secondary system to reinstate the air bubble?
Replace the hot water cylinder.
Heat the water.
Refill the system.
Discharge the pressure relief valve.
What is a sign that water is boiling in a heating system?
The water is lukewarm when drawn off.
There is no steam in the loft area.
The open vent is discharging and water is dangerously hot when drawn off.
The water is cold when drawn off.
What should be done if old immersion heater thermostats are found?
They should be left as they are.
They should be replaced with new immersions that contain a non self-resetting thermal cut out.
They should be replaced with the same old immersions.
They should be disconnected permanently.
What happens if a cylinder stat fails?
The water will stop heating immediately.
The water will continue to heat and be controlled by the boiler stat, which should cut out at approximately 80-85ºC.
The water will cool down automatically.
The water will be controlled by the immersion heater.
What is one reason cold water can warm up according to the document?
Cold water pipes are too far from hot water pipes.
Cold water pipes are too close to hot water pipes.
Cold water pipes are made of metal.
Cold water pipes are not insulated.
How should hot water pipes be installed to avoid the transfer of heat to cold water pipes?
Below cold water pipes.
Parallel to cold water pipes.
Above cold water pipes.
Inside cold water pipes.
What should be done to hot water pipes to avoid heat loss?
They should be painted.
They should be insulated.
They should be made of plastic.
They should be buried underground.
What happens if the hot water cylinder overheats?
The vent pipe discharges into the CWSC.
The cold water pipe bursts.
The hot water pipe freezes.
The hot water pipe leaks.
According to BS8000 pt15, where should the hot pipe be installed in relation to the cold pipework?
Below the cold pipework.
Inside the cold pipework.
Above the cold pipework.
Parallel to the cold pipework.
What is a common cause of air locks in low pressure systems?
Incorrect installation of pipework
High water pressure
Vertical pipework
Properly installed pipework
What is an indicator of air locks in a pipework system?
Continuous water flow
No flow of water or intermittent water flow
High water pressure
Steady water pressure
What is a suggested solution to prevent air locks in pipework?
Increase water pressure
Install pipework correctly
Use vertical pipework
Decrease water pressure
What is a common cause of blockages in a system that affects the flow rate at draw off points?
Excessive water pressure
Debris in the system
Low water temperature
Incorrect pipe size
What needs to be done at the commissioning stage to prevent blockages?
Increase water pressure
Reduce water temperature
Flush out the system to remove debris
Install larger pipes
What is an indicator of a blockage in the system?
High water pressure
Restricted water flow
Noisy pipes
Leaking valves
Which of the following is NOT a recommended action to address blockages?
Remove and clean filters
Trace draw off points and pipework to locate blockage
Increase water temperature
Remove and replace
What is a common issue in hard water areas that can cause blockages and reduce efficiency?
Rust
Limescale
Algae
Mold
Which of the following is an indicator of limescale buildup?
Increased water flow
Clear water
Reduced water flow
Soft valves
What is a recommended solution to prevent limescale buildup?
Install a water filter
Install a water softener or scale inhibitor
Use hot water only
Clean with vinegar
When dealing with faults in maintenance, which of the following should you check first?
Software updates
Temperature settings
User manuals
Warranty status
Which of the following is NOT listed as a basic check for faults in maintenance?
Timer settings
Fuse
Water treatment
Software compatibility
What is one of the basic checks for faults in maintenance related to electrical components?
Timer settings
Water treatment
Fuse
Insulation
Which of the following is a basic check for faults in maintenance related to plumbing?
Temperature settings
Water treatment
Timer settings
Insulation
In the context of maintenance, what should be checked to ensure proper installation and connections?
Timer settings
Water treatment
Fuse
Installation and connections
What can cause maintenance problems in plumbing systems?
Soft water
Temporary hard water
Distilled water
Rainwater
What happens when hard water is heated above 65°C?
It becomes soft water
It loses its calcium and limescale is formed
It evaporates completely
It becomes acidic
What is one of the effects of limescale in plumbing systems?
It purifies the water
It insulates the water from the heat source
It makes the water taste better
It increases water pressure
What is another effect of limescale in plumbing systems?
It can cause blockages
It can clean the pipes
It can increase water flow
It can reduce water temperature
What should ideally be done to hard water before it enters a domestic water system?
It should be boiled
It should be treated
It should be filtered
It should be cooled
