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Worksheetssanitation
Total questions: 56
Worksheet time: 30mins
A suitable material to use as a water main is
MDPE
LEAD
BRASS
GARDEN HOSE
Copper and galvanised steel should not be used in the same water system because
Limescale will form in the pipework
A fungus will grow within the system
Electrolytic corrosion will occur
You cannot get fittings to connect the two metals together
Rippling to bends on copper pipe tube, when using a scissor benders is caused by what
loss of hydraulic fluid
The former being to tight
The back guide being adjusted too loosely
The back guide being adjusted too tightly
why are standard brass fittings not suitable for use as tappings into water mains below ground
They become brittle due to low temperatures
They are prone to dezincification in certain soils
They will rust
They are far too expensive to hide under ground
A communication pipe is laid in a snake fashion because
It is quicker and therefore cheaper that way
It absorbs ground subsidence without damaging the pipe
It eliminates the need for expensive bedding materials
the snake allows quick fitting, so you get paid faster
An manipulative joint for copper pipe is one of in which
The shape of the tube end is altered before the joint is made
A soft copper ring is provided with the joint
The tube is cleaned and fluxed and solder fed into the joint
The pipe is heated and then manipulated with a lump hammer
Raw water is treated in 3 stages before being distributed to the water main. whats the sequence
sterilisation-filtration-sedimentation
filtration- sedimentation -evaporation
sedimentation- filtration-sterilisation
sedimentation-filtration- evaporation
What is the most suitable method of joining a MDPE buried water mains
Solvent welding
Any cheap fitting off the internet
Electro fusion welding
Brass compression fittings
Why is water mains pipe buried to a minimum depth of 760mm
So you will not hit it with a garden shovel when planting flowers
To avoid other services
To absorb ground subsidence
To prevent damage from freezing
The instrument used to measure the air pressure within a drainage pipe during a test is called what
manometer
viscometer
absolute pressure guage
absolute last option and fingers crossed gauge
This tool is called a ....
smoothing file
cut clasp
rasp
roughing file
The purpose of this tool is to ........
mark out a straight line
plumb a line down
show the direction of gradient in gutter systems
show the spacing between gutter fascia brackets
Why is this plastic waste pipe sagging so badly?
it's in a sunny location
no room for exapansion
it's not clipped correctly
all of the above
This tool is used to.......
ensure pipe is installed level
ensure a string line is level
ensure gutter is installed to the correct gradient
ensure you have calculated the fascia bracket spacing correctly
The maximum spacing for gutter fascia bracket is?
1mm
1.8m
1.5m
1m
This fitting is called?
Gutter union
Gutter support bracket
Gutter fascia bracket
Gutter installation bracket
This fitting is called a.......
Gutter union
Gutter joiner
Gutter socket
Gutter bracket
This gutter profile is called......
Half round
Square
Egg mould
Ogee
How far in from a gutter fitting should the first fasica bracket be installed......
120mm
130mm
140mm
150mm
The maximum distance apart that fasica brackets can be installed is......
1.0m
1.5m
1.1m
1.2m
The two most common waste pipe diameters used in a domestic house are?
15mm & 22mm
22mm & 28mm
15mm & 32mm
32mm & 40mm
When installing plastic materials it is important we allow for......
time to install them correctly.
expansion of the plastic.
the correct jointing method.
the right type of plastic.
The method of jointing using this fitting is.....
solvent weld
push fit
DIY
compression
The method of jointing using this fitting is?
Compression
Solvent weld
Glue
Push fit
Push fit waste pipe systems is made out of which type of plastic?
Polyethylene
Polypropelyene
ABS
uPVC
ABS and uPVC plastic uses which jointing method?
Solvent weld
Push fit
Compression
Silicone
The horizontal clipping distance for 40mm waste pipe is?
400mm
500mm
600mm
700mm
This fitting is used on.....
32mm & 40mm waste pipe
15mm & 22mm copper pipe
15mm & 20mm steel pipe
110mm soil pipe
This fitting is used on
32mm & 40mm waste pipe
15mm & 22mm copper pipe
15mm & 20mm steel pipe
110mm soil pipe
The maximum vertical clipping distance for a 32mm waste pipe is?
1.0m
1.1m
1.2m
1.3m
What building regulations cover drainage systems?
Part L and J
Part H and G
Part H and P
Part G and L
The British standard for sanitary installation is?
BS 6700
BSEN 806
BS 6465
BS 1212
The British standard that cover gravity drainage systems within the building is?
BS 12056
BS 1212
BSEN 806
BS 6700
The British standard for good workmanship on site is?
BS 8000 pt13
BSEN 806
BS 1212
BS 1172
This picture shows a?
Primary ventilated stack
Secondary ventilated stack
Soil pipe
Drain pipe
This picture shows a?
Waste manifold
Long radius bend
Strap boss
intumescent collar
This picture shows a?
Waste manifold
Long radius bend
Strap boss
intumescent collar
This picture shows a?
Waste manifold
Long radius bend
Strap boss
intumescent collar
This picture shows a?
Waste manifold
Long radius bend
Strap boss
intumescent collar
The fall on a soil stack must be?
90 degrees
45 degrees
Self cleaning
7 mm per metre
The lowest connection to the soil stack must be a minimum of how many mm for a two story building?
150 mm
300 mm
450 mm
750 mm
The lowest connection to the soil stack must be a minimum of how many mm for a five story building?
150 mm
300 mm
450 mm
750 mm
The gradient a gutter system should fall to is
600:1
1:60
1:600
1:6000
Which material can gutters be made from which is no longer permitted for use?
Copper
Plastic
Asbestos
Aluminum
When working on an historic building what material might you use?
Cast aluminium
Cast iron
Asbestos
Plastic
The maximum rainfall per hour a gutter system should designed for is?
75m/hr
7.5mm/hr
75mm/hr
.75mm/hr
ERA stands for?
Efficient Reactive Area
Effective Reactive Area
Effective Roof Area
Efficient Roof Area
The Standard which gutter systems are installed to is
BSEN 12056:2000
BSEN 12156:2000
BSEN 12356:2000
BSEN 12056:20000
This type of bracket is known as a
Adjustable bracket
Up and down bracket
Drive in bracket
Rise and fall bracket
The purpose of the "insert gutter to here" mark on the inside of each gutter fitting is to allow for
The water to flow through the gutter better
Allow for free thermal movement
To prevent the gutter from blocking
To increase to efficiency of the gutter system
An underground drainage which allows both the rainwater and foul water into one main sewer system is known as
Partially separate system
Combined spearate system
Separate system
Combined system
The maximum spacing for downpipe brackets is
1.5m to 1.8m
15m to 18m
.150m to .180m
15mm to 18mm
Calculate the rise in a gutter system which is 7.5m long.
15mm
10mm
11.5mm
12.5mm
The most efficient place to have an outlet in a gutter system is..........
One at the end of the gutter system
One in the middle of the gutter system
One around the corner of the property
One gutter discharging onto a lower roof of the property
