Natural CW Supplies

Open Ended

Describe one method by which water can be collected, stored, or distributed in a community.

Multiple Choice

Why is the supply and treatment of cold water important for communities?

• It ensures safe drinking water and public health

• It helps in increasing the temperature of water

• It is only necessary for industrial use

• It reduces the need for water conservation

Open Ended

List two sources of reference for cold water as mentioned in the lesson.

Multiple Choice

Which property makes water an excellent solvent?

• Its density

• Its solvent power

• Its boiling point

• Its freezing point

Open Ended

Describe the physical changes that water undergoes as it is heated from 0°C to 100°C.

Open Ended

Explain how the physical changes of water are represented in the diagram and relate them to real-life examples.

Multiple Select

Which of the following statements about water's expansion is/are correct?

• Water expands about 4% as it is heated from 4°C to 100°C.

• At 0°C, water expands immediately by 10% of its original size.

• At 100°C, water expands 1600 times its original size.

• Water contracts as it freezes.

Multiple Choice

Which type of water is considered the purest natural water suitable for drinking according to the classification of water?

• Rainwater collected in the open countryside

• Rainwater collected around towns

• River water

• Tap water

Open Ended

Explain how rainfall contributes to the classification of water as soft or hard based on the slides.

Multiple Choice

What is the main difference between permanent hard water and temporary hard water as described in the slides?

• Permanent hard water contains calcium sulphates, while temporary hard water contains calcium carbonates.

• Permanent hard water is found in moorland, while temporary hard water is found in salt lands.

• Permanent hard water is suitable for drinking, while temporary hard water is not.

• Permanent hard water is acidic, while temporary hard water is alkaline.

Open Ended

Describe the role of plants in the water cycle as illustrated in the slides.

Multiple Choice

Which of the following are steps in the water cycle as shown in the diagram?

• Evaporation from soil, Rainfall, Transpiration from plants, Water table

• Condensation, Precipitation, Filtration, Irrigation

• Photosynthesis, Respiration, Runoff, Absorption

• Evaporation from lakes, Photosynthesis, Water table, Filtration

Open Ended

Explain the difference between pervious and impervious strata as shown in the water cycle diagram.

Multiple Choice

Which process in the water cycle is responsible for water vapor rising into the atmosphere?

• Evaporation

• Condensation

• Precipitation

• Infiltration

Multiple Choice

Which water source requires only sterilisation and not chemical treatment?

• Deep wells or bore holes

• Lakes

• Rivers

• Reservoirs

Multiple Select

Select all the water sources that are described as 'very polluted.'

• Lakes

• Rivers

• Deep wells or bore holes

• Reservoirs

Open Ended

Describe the role of reservoirs in the storage and supply of cold water.

Multiple Choice

Which of the following is an example of natural water storage as shown in the images?

• Service reservoirs

• Below ground, water table

• Pumping station

• Trunk mains

Multiple Choice

What is the main purpose of service reservoirs in water storage?

• To filter water

• To hold a 24-hour supply of potable water

• To pump water to consumers

• To store wastewater

Multiple Select

Which of the following are components involved in transporting water from the source to the consumer?

• Service Reservoirs

• Trunk Mains

• Principle Main

• Goose Neck

Open Ended

Describe the process of how cold water travels from its source to the consumer, based on the diagrams.

Open Ended

Explain the function of the drill-tap pressure adjusting screw in the ferrule connection process.

Open Ended

After learning about cold water supply and treatment, what is one aspect you would like to explore further or found most interesting?

Multiple Choice

What are the main topics covered in the section on Cold Water Supply and Treatment?

• Definition of Water, How water is collected, stored & distributed, Water Classification, Water Connection from local main to service pipe

• Definition of Water, Water Pollution, Water Recycling, Water Heating

• Water Filtration, Water Heating, Water Cooling, Water Recycling

• Water Pollution, Water Storage, Water Heating, Water Cooling