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Worksheets8202 Sanitation CJ
Total questions: 24
Worksheet time: 12mins
If a macerator ran for a long time after flushing, what could be the problem?
Blockage in the area of the pump within the unit
Excessive volume of solids
Incorrect electrical connection
Timer requires resetting
Where can individual appliance discharge rates be obtained?
The data plate on an appliance
Manufacturer's instructions
The clerk of the works
The Building Regulations
If a waste water lifter pump began to cycle on and off, what could be the reason?
Intermittent electrical fault on the supply connection
Excessive volume of waste being processed
A dripping tap or leaking connection in the house
A designed self-priming process
When servicing a sink waste disposal unit, you discover an excessive amount of debris in the unit. How would you proceed?
Safely isolate the unit and remove the debris
Ask the end user questions to ascertain the origin of the debris
Safely isolate the unit and decommission
Flush with clear water
If an operational problem were found on a macerator unit, how would you begin to identify a solution?
Refer to the manufacturer's fault-finding flow charts
Strip the appliance and look for an obvious cause of the problem
Turn on the appliance and check with an approved test instrument
Remove the appliance and return it to the manufacturer
Which of the following makes an air admittance valve (AAV) unsuitable for sanitary pipework installations?
Venting to atmosphere at intermittent points on the run of the drain
The inclusion of a stub stack
An interceptor trap
A waste water lifter
Which of the following best describes a cesspool?
An installation which processes solids and liquids
A pit where debris naturally permeates into the water table
A receptacle which stores effluent that is later used as a fertiliser
An installation that stores solids and liquids that are removed at a later date
If a sanitary installation fails a soundness test, how can any leaks be identified?
Apply leak detection fluid to joints on fittings
Remake the joints with silicone sealant
CCTV
Carry out a hydraulic test
What is the main factor to consider when selecting a gutter for a dwelling?
The style of gutter profile
The angle of the roof
The roof area
The amount of available gullies
Who should be consulted before beginning servicing or any type of remedial work on a sanitary appliance?
The local authority
The manufacturer
The customer
The previous installer
If a problem has been reported about the operation of a waste water lifter, what would be the first step to take to help analyse the issue?
Talk to the previous installer and seek their advice
Order parts based on discussion with the client
Do not operate appliance; dismantle basic components
After talking with the customer, operate the appliance and check for operation, in accordance with the manufacturer’s instructions
How should a floor surface of a walk-in wet room be installed?
On a flat plane
With an angle which falls to a central or perimeter gully
With non-porous tiles
With a fallout of the wet room area to an external gully
If a washbasin waste pipe exceeds the permitted distance from a primary ventilated discharge stack, which of the following should be considered?
Increase the waste pipe size
Increase the size of the trap
Move the basin nearer to the discharge stack
Relocate the sanitary pipework
Which of the following sentences best describes the difference between cesspits and septic tanks?
A cesspit stores solids but a septic tank separates them
A cesspit digests the solids but a septic tank discharges them
A cesspit separates solids but a septic tank stores them
A cesspit stores only liquid and a septic tank stores only solids
Floor-mounted taps are best for which of the following applications?
Walk-in wet rooms
Roll top baths
Cleaners’ sinks
Free-standing sinks
During a visual inspection of a sanitary system you notice an AAV that was boxed in. Which of the following actions would you take?
Inspect the AAV and replace boxing
Fix a notice to the boxed-in area
Insert vents and access port into the boxed area
No action required
How much trap seal should remain after the full performance testing procedure has been completed?
10mm
50mm
75mm
25mm
When maintaining a septic tank, which of the following must be ensured?
That all liquids are removed but all of the solids remain
The majority of the solids are removed
Only liquid remains after the removal of solids
The whole area is chlorinated
If a pump fails on a WC macerator after it has been flushed, which of the following needs to be checked?
The pump
The amount of water entering the unit
The discharge pipework
The float switch
When commissioning a macerator that is connected to a soil stack via a pan connector travelling through a partition wall, what checks are needed?
Operate the appliance and check for noise transmission behind the wall
Operate the appliance and inspect for leaks on all connections
Air test the discharge pipework
Discharge other appliances simultaneously and check depth of trap seal
When the installation of a macerator is completed, what should the installer do?
Present the final bill
Clean the surrounding area
Give a demonstration of the appliance
No further action required
When a new installation has been completed, what should the installer give to the client to verify that the work has been tested and carried out to the correct standard?
An invoice with a three-year guarantee for workmanship
A letter which guarantees the components are covered for one year by the manufacturers
An email with a description of how the work was carried out
Commissioning records of the installation
Which of the following could cause a slow discharge from a WC pan that is connected to a macerator with a pump working correctly?
Blockage in pipe
Blockage in pan
Blocked carbon air filter on the macerator unit
Electrical problem
Which of the following sentences could best describe safe electrical isolation of a macerator?
Remove electrical wire from macerator unit and make safe in strip connector
Turn off rocker switch
Remove fuse from spur outlet in wall
Remove fuse from spur outlet, turn off and lock MCB at consumer unit and leave a sign. Keep any components capable of accidentally reconnecting the electrical supply in a safe place on your person
