WorksheetsPlumbing Processes PPT 6 - Plastic pipework & Symbols
Total questions: 35
Worksheet time: 18mins
What is the purpose of a medium file set in plumbing?
To cut polybutylene pipes
To measure pipe length
To remove burrs
To mark cutting lines
Which tool would you use to mark cutting lines on a pipe?
Hack saw 32tpi
Pencil
Ratchet style cutter for waste pipe
Steel rule
What is the function of a ratchet style cutter in plumbing?
To cut polybutylene pipes
To remove burrs
To cut waste pipes
To measure pipe length
What are plastic pipes used for in plumbing?
Only for cold water
Only for hot water
Cold water, hot water, central heating, guttering, above ground drainage, and below ground drainage
Only for central heating
Why are there different types of plastic pipes in plumbing?
To reduce costs
To match the color of the building
To be suitable for different situations
To increase water pressure
What is PVCu not suitable for?
Hot water
Cold water
Soil pipes
Guttering and down pipes
Which type of pipe is used for underground mains and is blue in color?
PVCu
MDPE
HDPE
CWSC
What is a common characteristic of both MDPE and HDPE?
Suitable for hot water
Degrades in sunlight
Solvent weld
Used for waste pipes
Which type of pipe is described as PVCu
Plastic Vinyl Composite Utility
Pressurized Vinyl Composite Urethane
Unplasticised polyvinyl chloride
Plasticised polyvinyl chloride
Which material is used for waste pipes and degrades in direct sunlight?
Polybutylene
ABS (Acrylonitrile butadiene styrene)
Polypropylene
PVC
What is a characteristic of Polybutylene in plumbing applications?
Solvent welded
Push fit
Feels slightly greasy to touch
Degrades in sunlight
Which material is known to be solvent welded and can degrade in sunlight?
Polypropylene
Polybutylene
ABS (Acrylonitrile butadiene styrene)
PVC
Which material is not solvent welded and is used for cold and hot water applications?
Polypropylene
Polybutylene
ABS (Acrylonitrile butadiene styrene)
PVC
What is a key characteristic of polybutylene that makes it suitable for plumbing systems?
High electrical conductivity
High temperature and pressure resistance
High thermal expansion
High noise transmission
How can polybutylene pipes be joined?
Welding
Soldering
Push-fit fittings
Gluing
What material is used in push-fit fittings to make a watertight joint?
Plastic sealant
Neoprene rubber 'O' ring
Copper tape
Silicone gel
Identify
Internal Pipe Sleeve/Insert
External Pipe Sleeve/Insert
O-ringed Plastic Reducer
Pressure Test Nozzle
Identify
Intumescent Collar
Electrical conduit fastener
PVC pipe coupling
Pipe clamp for noise reduction
At what horizontal spacing should a 22 mm polybutylene pipe be clipped?
0.3 m
0.5 m
0.8 m
1.0 m
At what horizontal spacing should a 15 mm polybutylene pipe be clipped?
0.3 m
0.5 m
0.8 m
1.0 m
What is the vertical spacing for clipping a 22 mm polybutylene pipe?
0.5 m
0.8 m
1.0 m
1.2 m
What is the vertical spacing for clipping a 15 mm polybutylene pipe?
0.5 m
0.8 m
0.3 m
1.2 m
What is the purpose of sleeving pipes passing through masonry, stone, and concrete?
To allow for expansion and pipe movement
To increase water pressure
To reduce noise from the pipes
To enhance the aesthetic appearance
Why should we use an approved sealant to seal the sleeve around a pipe ?
It makes the pipe easier to remove later.
To prevent rain, insects, and vermin from passing through
It reduces water flow inside the pipe.
It makes the pipe more flexible for adjustments.
What is an intumescent collar used for?
To expand in the presence of heat and stop the spread of fire
To seal water leaks
To support heavy pipes
To reduce pipe vibration
What do working drawings for plumbing and heating installations often contain?
Symbols that represent pipes, valves, and appliances
Detailed instructions for installation
Lists of required materials
Safety guidelines
Why is it important to recognize the symbols in plumbing and heating installation drawings?
To ensure systems are installed properly
To reduce installation costs
To improve the aesthetic design
To increase the speed of installation
According to which standard should all symbols in plumbing and heating drawings be shown?
BS 1192:2007
ISO 9001:2015
ANSI Z535.4
IEC 60617
Which symbol is this?
Stop valve
Gate valve
Radiator valve
Drain valve
What symbol is this?
Expansion vessel
Water meter
Pump
Float-operated valve
What symbol is this?
Single check valve
Double check valve
Motorised zone valve
Safety/relief valve
What symbol is this?
Radiator valve
Service valve
3-port motorised valve
Drain valve
What symbol is this?
Radiator valve
Service valve
3-port motorised valve
Drain valve
What symbol is this?
Radiator valve
Service valve
Single check valve
Drain valve
What does MDPE stand for?
Medium-Density Polyethylene
Modified Dual Polymer Emulsion
Metal-Dependent Polyethylene
Maximum Density Pipe Elastomer
