WorksheetsPlumbing Processes PPT 5 - Copper and LCS pipework
Total questions: 43
Worksheet time: 22mins
What organization is WRAS?
Water Reservation Assessment Service
Water Regulations Advisory Scheme
Water Regulations Assessment Scheme
Water Reservation Admission Service
What is the role of the Institute of Plumbing and Heating Engineers (IOPHE)?
Offer advice and information
Provide water regulations
Offer guidance as the plumbing lead body
Issue British Standard Kitemarks
What is the standard for copper tubes used in water, gas, and sanitation installations?
BS EN 1057
ISO 9001
ASTM B88
DIN 2391
Which grade of copper tube is fully annealed and supplied in coils?
R220
R250
R290
R300
What is the most widely used grade of copper tube for plumbing and heating applications?
R250
R220
R290
R300
Which grade of copper tube is hard tempered and not normally used in the UK?
R290
R220
R250
R300
Why is it important to protect copper pipes in vulnerable areas?
To prevent corrosion
To enhance conductivity
To improve water flow
To reduce noise
When is copper most vulnerable?
When exposed to sunlight
When laid in concrete flooring
When used in electrical wiring
When painted
Which of the following tools can be used to bend soft coils and half-hard copper tubes?
Welding torch
Bending springs
Hammer
Screwdriver
What is one advantage of bending pipe rather than using a fitting?
Increases frictional resistance
Costs more
Less frictional resistance
Requires more time
Why might sections be prefabricated in one go when bending pipes?
To increase complexity
To reduce costs
To increase weight
To decrease efficiency
Which of the following is a common bend used in plumbing workshops?
90°
180°
270°
360°
Which of the following is a method of jointing copper tubes for domestic purposes?
Welding
Glued
Soldering
Brazing
What is one method of jointing copper tubes?
Threaded fittings
Compression fittings
Adhesive bonding
Riveting
Identify a method of jointing copper tubes that involves a mechanical connection.
Push-fit fittings
Gluing
Welding
Soldering
Which method of jointing copper tubes does not require heat?
Press-fit fittings
Soldering
Brazing
Welding
What principle do capillary fittings use to draw solder into the fitting?
Gravity
Capillary action
Magnetic force
Electrical conduction
Which type of capillary fitting has a band of lead-free solder housed inside a raised ring?
End feed
Integral solder ring
Compression fitting
Push-fit fitting
Why is the end feed type of fitting generally used in preference to the integral solder ring type?
It is more durable
It is easier to install
Due to cost and aesthetics
It requires less heat
What type of solder must be used on hot and cold water systems?
Leaded solder
Silver solder
Lead-free solder
Copper solder
What is the final step in the end feed fitting process?
Joint is allowed to cool.
Flux is added.
Joint is wiped clean with cloth.
Pipe is cleaned on outside.
What tool is used to tighten a Type A non-manipulative fitting?
Adjustable spanner
Hammer
Screwdriver
Pliers
For which materials is a Type A non-manipulative fitting suitable?
Half-hard copper and plastic pressure pipe
Steel and aluminum
Rubber and glass
Wood and ceramic
What is required for a Type B manipulative fitting?
A swaging tool
A hammer
A screwdriver
A wrench
Where are Type B manipulative fittings mostly used?
Above ground pipe work
Low pressure systems
Below ground pipe work
Electrical wiring
Where can push-fit fittings be used?
Underground sewage systems
Above ground hot and cold water services and central heating systems
Electrical wiring systems
Gas pipelines
What tool is required for press-fit fittings to make a secure joint?
Hammer
Electrical press tool
Screwdriver
Wrench
What component do press-fit fittings rely on to create a watertight seal?
Glue
Tape
'O' ring
Sealant
What is the 'X dimension' used for in plumbing?
To determine the diameter of the pipe
To calculate the thickness of the pipe
To work out how much copper tube is required
To measure the weight of the pipe
How is the 'X dimension' defined in plumbing?
The diameter of the pipe
The thickness of the pipe
The centre of the fitting to the engaged length
The weight of the pipe
What is the correct color code for light grade low carbon steel (LCS) pipe?
Brown
Blue
Red
Green
For which of the following uses should low carbon steel (LCS) pipe not be used?
Wet central heating systems
Gas installations
Oil lines
Domestic hot or cold water supplies
What is the color code for medium grade low carbon steel (LCS) pipe?
Red
Blue
Brown
Yellow
Which grade of low carbon steel (LCS) pipe is identified by the color red?
Light
Medium
Heavy
Extra Heavy
What type of fitting is this?
End Feed/Capillary
Compression
Push-fit
Solder ring
What type of fitting is this?
End Feed/Capillary
Compression Type A
Push-fit
Solder ring
What type of fitting is this?
End Feed/Capillary
Compression
Push-fit
Solder ring
What type of fitting is this?
End Feed/Capillary
Compression
Push-fit
Solder ring
What type of fitting is this?
End Feed/Capillary
Compression
Push-fit
Solder ring
What type of fitting is this?
End Feed/Capillary
Push-fit
Press-fit
Solder ring
What type of fitting is this?
Valve
United
Flange
Solder
What type of fitting is this?
Valve
Union
Flange
Solder
Three different methods of joining LCS pipe?
Threaded, Compression & Welded
Threaded, Glued & Tightened
Soldered, Glued &
Push-fit
Compression, Press-fit & Swaged
