WorksheetsCold Water Systems Quiz
Total questions: 25
Worksheet time: 13mins
What is the primary purpose of a cold water system?
To supply drinking water only
To provide a safe and adequate supply of cold water
To regulate water temperature
To distribute hot water throughout a building
What is the minimum recommended pressure for a domestic cold water supply?
0.5 bar
1.0 bar
1.5 bar
2.0 bar
What does the term "potable water" refer to?
Water suitable for irrigation
Water safe for drinking
Water used for industrial purposes
Water for heating systems
Which of the following is a component of a cold water system?
Expansion vessel
Storage cistern
Boiler
Radiator
What is the main purpose of a stopcock in a cold water system?
To increase water pressure
To regulate water temperature
To control the flow of water
To heat water
Where is the stopcock usually located in a domestic property?
In the loft
Under the kitchen sink
In the bathroom
Next to the boiler
What material is commonly used for modern domestic cold water pipes?
Lead
Copper
Cast iron
Asbestos cement
Which regulation covers the installation and maintenance of cold water systems in the UK?
Gas Safety Regulations
Water Supply (Water Fittings) Regulations
Building Regulations Part P
Electricity at Work Regulations
What is the primary function of a ball valve in a cold water storage tank?
To heat water
To control the water level
To regulate pressure
To remove impurities
What is the ideal location for a cold water storage tank in a building?
Ground floor
Basement
Loft or attic
Boiler room
What type of cold water system is most commonly used in modern homes?
Gravity-fed system
Direct system
Indirect system
Pumped system
Why are lead pipes no longer used in cold water systems?
They corrode easily
They are expensive
They pose a health risk
They restrict water flow
What is the function of a drain-off valve in a cold water system?
To increase water pressure
To remove sediment
To allow system drainage for maintenance
To filter the water
What is the main disadvantage of a gravity-fed cold water system?
It requires a lot of space
It has low pressure
It is difficult to install
It is expensive to maintain
What is the main purpose of a check valve in a cold water system?
To regulate water temperature
To prevent backflow
To increase pressure
To remove air from the system
How often should a cold water storage cistern be inspected?
Monthly
Annually
Every five years
Only when a fault occurs
What is the recommended minimum capacity of a cold water storage tank for a standard household?
25 litres
50 litres
100 litres
230 litres
What is the function of a pressure reducing valve?
To increase water flow
To maintain constant water pressure
To heat water
To filter impurities
Which type of joint is commonly used in copper pipework for cold water systems?
Soldered
Threaded
Flanged
Welded
What is a common cause of water hammer in cold water systems?
Low water pressure
A faulty stopcock
Sudden closure of a valve
A leaking pipe
What is the recommended temperature range for storing cold water in a tank to prevent bacterial growth?
0-5°C
10-15°C
20-25°C
30-35°C
What is the main risk of stagnant water in a cold water system?
Increased water pressure
Contamination and bacterial growth
Reduced water hardness
Higher water temperature
What is the main purpose of an air gap in a cold water system?
To increase water pressure
To prevent backflow contamination
To store extra water
To filter water
Which of the following fittings helps to prevent freezing in an external cold water pipe?
Check valve
Stopcock
Insulation lagging
Drain-off valve
What type of pipe material is best suited for underground cold water supply pipes?
Copper
Lead
MDPE (Medium Density Polyethylene)
Galvanized steel
