DCC40152 Topic 1

Which of the following is NOT a common domestic use of water?

• Bathing

• Cooling System

• Drinking

• Cooking

Surface water sources include all EXCEPT

• Rivers

• Lakes

• Reservoirs

• Wells

What is the main biological indicator of water contamination?

• Hardness

• pH

• Faecal Coliform

• Chlorides

Which characteristic is classified under chemical water quality

• Temperature

• Colour

• Iron (Fe)

• Taste & Odour

Water used for irrigation is categorized as

• Industrial use

• Recreational use

• Agricultural use

• Domestic use

Groundwater sources include aquifers and boreholes

• True
• False

Colour and turbidity are part of chemical water characteristics

• True
• False

Water used in swimming and fishing is considered recreational use

• True
• False

Nitrates (NO₃⁻) are considered a biological water quality parameter

• True
• False

pH is measured under both physical and chemical water characteristics

• True
• False