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WorksheetsDrainage Systems 6035-02 | Part 1
Total questions: 36
Worksheet time: 22mins
Identify the access branch.
Which of the following is an advantage of having cast iron guttering installed?
Durable
Expensive to install
Time-consuming installation
Very heavy
The stub stack only requires ventilation when the distance from the invert to floor level is greater than?
1.3 metres
1.5 metres
2 metres
3.5 metres
The component shown is?
(a)
What British Standards governs sanitary installations?
BS 6700
BS EN 12056
BS 8118
BS 6465
What is the purpose of a ventilated branch system?
On larger systems that are prone to trap seal losses
On smaller systems where there is only a few appliances
On systems located in properties like bungalows
On systems that are prone to windy conditions
PVCu(unplasticised polyvinyl chloride) has a coefficient of expansion of?
0.00065
0.008
0.00018
0.0000006
Select the 90° pan connector
What is the name of the component shown? (Written answer)
(a)
The component shown here has which of the following functions?
Drills holes into the soil pipe for additional connections
Allows the placement of a drain bag higher up the soil stack
Rotates a spring that breaks up any debris in the wastepipes
Select the correct trap seal loss: Generally happens in S traps when long fibres or hairs get caught over the top of the weir.
Induced siphonage
Capillary action
Evaporation
Leaks
If the maximum length is exceeded, what action should be taken?
Move the appliances closer
Move the soil stack closer to appliances
Reduce the waste pipe sizes
Increase the waste pipe sizes
Great care needs to be taken when installing or removing cast iron soil stacks due to? (Choose 2)
The weight of it
Working at heights
Multiple people working
Potential clear weather
The maximum distance between fascia brackets are 1.0m apart, unless is a windy location. What distance apart is the brackets in these situations?
1.2m
1.5m
0.5m
0.8m
Intensity of rainfall is measured by?
Litres/minute/metre square (l/m/m²)
Litres/second/metre square (l/s/m²)
Pints/hour/metre square (p/h/m²)
Select the correct component from a drain rod set: Double screw
The image here shows a type of trap, but what is the purpose of the circled section?
Easy accessibility for maintenance
Avoid siphonage under negative pressures
Ensure the trap stays at positive pressure
What is the component shown? (Written answer)
(a)
What is the maximum length the waste pipe can be for basins or bidets?
1.7m
3.0m
6.0mm
Select the answer that states a disadvantage to the separate system.
Foul water system is not regularly flushed by rainwater
Sewage plant is not inundated with water when it rains
No trapped gullies are required for rainwater
Rainwater does not receive any treatment
If a lot of changes in direction are unavoidable, what action should be taken?
Increase the fall ratio
Place the gutter somewhere else
Install the outlet as close to the last change of direction as possible
Reduce the fall ratio
Select the option that is not a style of swivel traps.
P trap
S trap
Slimline trap
Running trap
WRITTEN ANSWER: Fill in the missing section. (In Metres)
(a)
For the diagram shown, select the correct answer for the red box.
Less than 1m
Less than 3m
Less than 5m
Less than 6m
What Building Regulation covers sanitation, hot water safety and water efficiency?
Part L
Part P
Part G
Part H
This item is know as an 'AAV'. But what does the abbreviation stand for?
Automatic air valve
Automatic air vent
Air admittance valve
Admittance air vent
Rubber gauntlets should be worn when working on used soil stacks and WCs to protect the plumber from what disease?
Malaria
Dermatitis
Weil's disease
E.coli
If the scenario occurs that involves the removal of lead waste pipes, what should the plumber do? (Choose 2)
Be cautious of lead poisoning
Scrape any white powder off of the pipe
Correct manual handling carried out due to weights
Remove all lead, even if there is no faults
Fill in the missing section of the table.
0.8m
1.0m
1.2m
1.8m
Select the correct PVCu profile: Deep flow
How many times does the performance test need to be carried out?
Once
Two times
Three times
Four times
Where an existing branch connection to a stack is between 82-160mm, no other connection may be installed opposite for a vertical distance of how much downwards?
100mm
150mm
200mm
250mm
The size of waste pipe for a junior WC is?
32mm
40mm
75mm
100mm
The component shown is?
(a)
What is the symbol shown here? (Written answer)
(a)
Select the correct trap seal loss: A simple reason commonly experienced in warmer climates and holiday properties.
Leaks
Evaporation
Wavering out
Capillary action
