4 Lec Q Part 1 - The Essentials of Water Quality

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Which organization launched the International Drinking Water Supply and Sanitation Decade, 1981-1990?

Department of Public Health

King Khalid University

United Nations General Assembly (correct)

World Health Assembly

What is the aim of the International Drinking Water Supply and Sanitation Decade?

To improve water purification techniques

To provide all people with adequate supplies of safe water and sanitation by 1990 (correct)

To reduce waterborne diseases

To promote awareness about water pollution

Which of the following is a characteristic of safe and wholesome water?

Usable for domestic purposes

Pleasant to the taste

Free from harmful chemical substances

All of the above (correct)

What is the estimated daily water requirement for drinking?

2 liters per head per day Signup and view all the answers

What factors can influence water consumption?

All of the above Signup and view all the answers

What is considered an adequate supply of water for all urban domestic purposes?

150-200 liters per capita Signup and view all the answers

What are the main uses of water?

All of the above Signup and view all the answers

Which of the following is an agricultural purpose of water?

Irrigation Signup and view all the answers

What is a major cause of ill-health in developing countries?

Lack of safe and wholesome water supply Signup and view all the answers

What is the key to the attainment of 'health for all by the year 2000 AD'?

Primary health care Signup and view all the answers

Which source of water supply is considered the purest in nature?

Rain Signup and view all the answers

What is the main disadvantage of storing water for long periods in reservoirs?

Growth of algae and other microscopic organisms Signup and view all the answers

Which source of surface water supply is Not prone to contamination from human and animal sources?

Rain Signup and view all the answers

What is the source that is considered an important source of water supply in some developing countries' villages?

Tanks Signup and view all the answers

Which source of water supply contains 3.5% of salts in solution?

Sea water Signup and view all the answers

What is the main advantage of ground water as a source of water supply?

Effective filtering medium Signup and view all the answers

What is the main drawback of river water as a source of water supply?

Gross pollution Signup and view all the answers

Which type of well is do Not show seasonal fluctuations in the flow of water?

Deep springs Signup and view all the answers

What is the area draining into a reservoir called?

Catchment area Signup and view all the answers

Water that is.…………………….safe and readily available throughout the year.

All of the above Signup and view all the answers

Which type of surface water is The impurities: derived from surface washing, sewage and sullage water, industrial and trade waste, and drainage from agricultural areas.?

Rivers Signup and view all the answers

Which of the following is a SOURCES OF WATER SUPPLY?

All of the above Signup and view all the answers

All of the following are Ground wate Except?

Streams Signup and view all the answers

What is the main disadvantage of using sea water as a source of water supply?

It is expensive to desalinate and demineralize sea water Signup and view all the answers

Which source of water supply is considered to have the highest bacterial count?

Surface water Signup and view all the answers

What is the main drawback of using tanks as a source of drinking water in some developing countries villages?

Tanks are subject to unlimited possibilities of contamination Signup and view all the answers

Which type of spring is more likely to dry up quickly during summer months?

Shallow springs Signup and view all the answers

Match the following water sources with their potential hazards:

Ground Water = Contamination from human and animal sources River Water = Prone to contamination from human and animal sources Sea Water = High concentration of salts in solution Spring Water = May be affected by seasonal fluctuations in the flow of water Signup and view all the answers

Match the following water uses with their descriptions:

Domestic use = Includes drinking, cooking, washing, and bathing Public purposes = Includes swimming pools, public fountains and ornamental ponds, fire protection and public parks Industrial purposes = Includes processing and cooling Agricultural purposes = Includes irrigation Signup and view all the answers

Match the following water standards with their definitions:

Free from pathogenic agents = Does not contain disease-causing organisms Free from harmful chemical substances = Does not contain toxic chemicals Pleasant to the taste = Does not have an unpleasant taste, color, or odor Usable for domestic purposes = Can be used for everyday household activities Signup and view all the answers

Match the following types of water sources with their characteristics:

Rainwater = Purest water in nature, physically clear, chemically very soft Surface Water = Originates from rainwater, prone to contamination from human and animal sources Impounding Reservoirs = Artificial lakes, clear and palatable, prone to growth of algae and other organisms Rivers = Grossly polluted, unfit for drinking without treatment Signup and view all the answers

Match the following types of springs with their characteristics:

Shallow springs = Dry up quickly during summer months Deep springs = Do not show seasonal fluctuations in the flow of water Signup and view all the answers

Match the following sources of water supply with their disadvantages:

Tanks = Subjected to unlimited possibilities of contamination and are highly dangerous as a source of drinking water Sea Water = Contains a high concentration of salts in solution, desalting and demineralization process involves heavy expenditure Rivers = Always grossly polluted and quite unfit for drinking without treatment Impounding Reservoirs = Growth of algae and other microscopic organisms impart bad tastes and odors to water Signup and view all the answers

4 Lec Q Part 1 - The Essentials of Water Quality

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Questions and Answers

Which organization launched the International Drinking Water Supply and Sanitation Decade, 1981-1990?

What is the aim of the International Drinking Water Supply and Sanitation Decade?

Which of the following is a characteristic of safe and wholesome water?

What is the estimated daily water requirement for drinking?

What factors can influence water consumption?

What is considered an adequate supply of water for all urban domestic purposes?

What are the main uses of water?

Which of the following is an agricultural purpose of water?

What is a major cause of ill-health in developing countries?

What is the key to the attainment of 'health for all by the year 2000 AD'?

Which source of water supply is considered the purest in nature?

What is the main disadvantage of storing water for long periods in reservoirs?

Which source of surface water supply is Not prone to contamination from human and animal sources?

What is the source that is considered an important source of water supply in some developing countries' villages?

Which source of water supply contains 3.5% of salts in solution?

What is the main advantage of ground water as a source of water supply?

What is the main drawback of river water as a source of water supply?

Which type of well is do Not show seasonal fluctuations in the flow of water?

What is the area draining into a reservoir called?

Water that is.…………………….safe and readily available throughout the year.

Which type of surface water is The impurities: derived from surface washing, sewage and sullage water, industrial and trade waste, and drainage from agricultural areas.?

Which of the following is a SOURCES OF WATER SUPPLY?

All of the following are Ground wate Except?

What is the main disadvantage of using sea water as a source of water supply?

Which source of water supply is considered to have the highest bacterial count?

What is the main drawback of using tanks as a source of drinking water in some developing countries villages?

Which type of spring is more likely to dry up quickly during summer months?

Match the following water sources with their potential hazards:

Match the following water uses with their descriptions:

Match the following water standards with their definitions:

Match the following types of water sources with their characteristics:

Match the following types of springs with their characteristics:

Match the following sources of water supply with their disadvantages:

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