WorksheetsCold Water System Quiz
Total questions: 32
Worksheet time: 16mins
What are the two key things that determine the cold water system selected?
Pressure and flow rate
Temperature and color
Size and shape
Weight and height
What does pressure refer to in plumbing?
The color of the water
The temperature of the water
The force behind water flow
The taste of the water
How is pressure measured in plumbing?
Liters
Meters
Bar
Kilograms
What is the flow rate measured in?
Litres per hour
Litres per minute
Litres per day
Litres per week
If the flow rate is poor, what happens to the time it takes to fill a bath?
It takes less time
It takes more time
It stays the same
It fills instantly
What tool can be used to check the flow rate in a domestic situation?
Measuring tape
Flow cup
Thermometer
Stopwatch
Which of the following is NOT a factor affecting pressure and flow?
Age of property
Installation pipe size
Type of paint used
Blockages
What does the number of elbows or restrictions affect in plumbing?
Pressure and flow
Color of water
Temperature of water
Smell of water
What type of pressure is used in a direct cold water system?
Low pressure
Medium pressure
High pressure
No pressure
What is the only stored water used for in a direct cold water system?
Drinking water
Hot water system
Garden irrigation
Swimming pool
What size can all pipework be in a high-pressure direct system?
10mm
15mm
20mm
25mm
What is one advantage of a direct plumbing system?
Water is not potable
Poor pressure at draw off points
No concerns about storage cisterns in lofts
Water is only available at certain times
What happens if the mains are turned off in a direct system?
Water is still available
You are without water
Pressure increases
Water becomes warmer
In an indirect system, where is the cold water taken from?
Directly from the mains
From a high-level storage cistern
From a well
From a river
What type of water pressure is used for most cold water outlets in an indirect system?
High pressure
Medium pressure
Low pressure
No pressure
Which outlet is mains-fed in an indirect system?
Bathroom sink
Kitchen sink
Shower
Toilet
What is the size of the distribution pipe from the storage cistern?
15mm
22mm or 28mm
30mm
50mm
What is one advantage of an indirect plumbing system?
It is cheaper to install.
It has a stored supply of cold water.
It has more draw-off points.
It requires less pipework.
What is a disadvantage of an indirect plumbing system?
It is less expensive to install.
It has constant pressure.
It has more pipework in roof space.
It provides multiple draw-off points.
What needs to be sufficient for the appliance, regardless of the system installed?
Pressure and flow
Temperature and color
Size and shape
Length and width
What is the required capacity for a cold water storage cistern if it supplies either hot or cold water?
50–100 liters
100–150 liters
150–200 liters
200–250 liters
What is the required capacity for a cold water storage cistern if it supplies both hot and cold water?
100–150 liters
150–200 liters
230–250 liters
250–300 liters
Why must protection measures be included in a CWSC?
To prevent contamination
To make it look nice
To save money
To make it bigger
Why should a cold water storage cistern be insulated?
To keep it warm
To prevent freezing and warming
To make it look nice
To make it heavier
What is the purpose of a service valve on a cold water storage cistern?
To allow maintenance
To make it shiny
To change its color
To make it float
What should cover a cold water storage cistern?
A rigid, close-fitting lid
A soft blanket
A plastic bag
A metal chain
How should a cold water storage cistern be supported?
Over the whole base
On one side only
On a single point
On a small stand
What is the minimum size for both the cold feed and cold distribution in a cold water storage cistern?
20mm
22mm
25mm
30mm
Where does the cold feed supply cold water to?
Hot water cylinder
Kitchen sink
Bathroom shower
Garden hose
How much higher is the cold feed installed compared to the cold distribution for safety?
10mm
15mm
25mm
30mm
What can be used to isolate both the cold feed and cold distribution?
Ball valve
Full-way gate valve
Check valve
Pressure valve
What should not be used on plastic cisterns?
Water-based compounds
Oil-based compounds
Soap-based compounds
Air-based compounds
