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Worksheets8202L3SANPPT2Q1
Total questions: 40
Worksheet time: 20mins
What is one of the benefits of using macerators according to the text?
They can only be used in urban areas.
They provide a solution where access to the main soil stack is not practical.
They require no plumbing work.
They eliminate the need for a gravity WC.
According to Building Regulation part G, what is required if a WC macerator is installed?
A solar panel system must be installed.
A gravity WC must also be located in the same building.
The building must have at least two floors.
No additional plumbing is necessary.
What is the requirement for a space containing a closet or urinal according to the document?
It should be used for the preparation of food
It should be part of the kitchen
It should be separated by a door from a space used for the preparation of food
It should be directly connected to the living room
Where should washbasins be located in relation to the closet?
In the kitchen only
In any space which is used for washing up
In the room containing the closet or in a room or space giving direct access to the room containing the closet
Outside the dwelling
What is allowed to be connected to a small bore branch discharge pipe according to the document?
A washbasin and a shower
A closet fitted with a macerator and pump
A urinal and a bidet
A bathtub and a kitchen sink
What is the minimum gravity fall required for the inlet pipe into a Saniflo macerator unit to function properly?
1:30
1:40
1:50
1:60
Why is it important to ensure the correct gravity fall when installing a low trap item like a shower?
To prevent the pump/macerator unit from overworking
To ensure the waste water enters the unit by gravity
To avoid electrical issues with the shower unit
To make the installation process easier
What could happen if the gravity fall from the inlet pipe into the Saniflo macerator unit is insufficient, for example, less than 1:40?
The unit will make more noise
Soil water could back up in the shower tray
The shower pressure will increase
The unit will use less electricity
Why is it important to run any vertical outlet pipe as near as possible to the Saniflo macerator unit outlet connection?
To reduce the cost of pipe installation
To ensure the optimum discharge capability through the outlet pipework
To make the installation look more aesthetically pleasing
To comply with the color coding of pipes
What is the minimum vertical rise required for the outlet pipework before any horizontal pipework is fitted?
100mm
200mm
300mm
400mm
Which types of pipes are suitable for the discharge pipework of a Saniflo macerator installation?
Copper pipe only
Plastic solvent weld pipe only
Copper pipe or plastic solvent weld pipe
Any type of plastic pipe
When using plastic pipe for a Saniflo macerator installation, what is important to ensure regarding its support?
It should be push fit
It should be regularly supported to avoid sagging or dipping
It should be painted
It should be insulated
What should be done if a horizontal run of a Saniflo model's 22mm discharge exceeds approximately 10–12 metres?
Decrease the bore size of the pipework to 20mm
Keep the bore size the same
Increase the bore size of the pipework to 32mm
Replace the pipework with a different material
What type of bends should be used instead of 90° elbows to reduce frictional resistance in copper pipework?
Knuckle type 90° elbows
Machine pull bends
Plastic solvent weld pipework
De-bur any edges
When using plastic solvent weld pipework to achieve a 90° change in direction, how many 45° bends should be used in series?
One 45° bend
Two 45° bends
Three 45° bends
Four 45° bends
What is a crucial step to perform after using plastic and before applying solvent?
De-bur any edges
Wipe off any excess solvent
Use a knuckle type 90° elbow
Machine pull bends
What could be the consequence of not de-burring the edges of pipes carefully?
The pipe will be smoother
It will create less frictional resistance
It will lead to blockages in the future
The solvent will be applied more easily
What is the minimum fall required for the correct laying of discharge pipes underground to a manhole?
1:100
1:200
1:300
1:400
What should be done to protect underground discharge pipes from heavy wheel loads?
Insulate the pipes
Lay the pipes at a minimum fall of 1:200
Cover the pipes with concrete casing or paving slab
Nothing, as the pipes are suitable for heavy wheel loads
Why should pipes be insulated when installed underground?
To protect against heavy wheel loads
To ensure the 1:200 minimum fall is maintained
To protect against frost
To comply with BBA Cert 87/1889 detail sheet 9
How close to ground level can discharge pipes be laid without requiring additional protection?
200mm
350mm
450mm
500mm
What is the maximum length for an extension when siting a Saniflo macerator unit on the other side of the wall?
No more than 100mm
No more than 150–200mm
No more than 250mm
No more than 300mm
Why should the Saniflo unit not be installed underneath the floor?
It is too noisy when placed underneath the floor.
It can cause electrical issues.
It is against manufacturer recommendations.
It makes future maintenance difficult.
What should be done to ensure future maintenance of the Saniflo unit when it is hidden behind panels for aesthetic reasons?
Paint the panels for easy identification.
Ensure the macerator unit is accessible.
Install additional lighting around the unit.
Use transparent panels.
What is necessary to have full access to when installing a Saniflo macerator unit?
The electrical connections
The jubilee clips securing the inlet and outlet pipework
The user manual
The warranty card
What is the correct way to make an electrical connection for an unswitched fused connector according to the Level 3 Advanced Technical Diploma in Plumbing?
With a 10 amp fuse
With a 5 amp fuse
Without a fuse
With a 15 amp fuse
What can the connection of an unswitched fused connector be connected to?
A spur connected off a ring main circuit
Directly to the main power line
To any light fixture
To a water pipe
What is the range of motor load ratings for Saniflo macerator units?
100 watts to 300 watts
300 watts to 750 watts
750 watts to 1000 watts
500 watts to 1000 watts
Why is safe isolation essential when working on electrical appliances?
To prevent water damage
To ensure proper functioning of the appliance
To prevent electrical shock
To comply with color coding standards
Can a single dwelling be served by only one macerator?
Yes, it can be served by only one macerator.
No, it must have at least one gravity toilet
Yes, but only if there are multiple bathrooms.
No, each appliance must have its own macerator.
Which Building Regulation specifies the limitations of using a macerator?
Regulation 36
Regulation H1
Regulation 2.4
Regulation 5.3
State the minimum fall on the pipework from appliances entering a macerator unit.
1 in 40
1 in 30
1 in 20
1 in 50
What sort of bends should be installed on the outlet pipework, and why?
Swept bends for better flow
Tight bends to save space
Right-angle bends for easier installation
Flexible bends for adjustability
When installing or servicing a macerator, how would safe isolation be achieved?
By turning off the main water supply
By locking the unswitched fused spur
By closing the service valve
By using a lockout device
What is the recommended fall on the horizontal outlet pipework of a macerator?
1:100
1:150
1:200
1:250
What is supplied with the unit to free the grinding blades if they become blocked?
A lubricant
A repair manual
A special tool
A replacement blade
What safety feature should the sink waste disposal unit have in case the blades jam?
An automatic blade sharpener
A manual reset button
A thermal trip cut-off device
A sound alarm system
Before servicing a sink waste disposal unit, what should you ensure?
That the unit is full of water
That you have the manufacturer's permission
That you can safely electrically isolate the unit and are fully aware of the manufacturer's servicing procedures
That the unit is connected to a power source
What is fitted to the outlet of the sink waste disposal unit?
A water filter
A running trap
A pressure valve
A heating element
What is the purpose of electrical bonding to metallic surfaces in a sink waste disposal unit?
To prevent water from leaking
To ensure proper drainage
To reduce the risk of electric shock
To increase the efficiency of waste disposal
