Question 1

Which minerals and in what form are present in ground water?

Accepted Answer

A) Fe & Mn in Ferrous and Manganous 
B) Fe & Cu in Ferric and Cupric 
C) Fe & Mn in Ferric and manganous 
D) Cu & Mn in Cuprous and manganous 
A) Fe & Mn in Ferrous and Manganous 
B) Fe & Cu in Ferric and Cupric 
C) Fe & Mn in Ferric and manganous 
D) Cu & Mn in Cuprous and manganous A

Question 2

The extent of water treatment depends on how many factors?

Accepted Answer

A) 5 
B) 2 
C) 3 
D) 4 
A) 5 
B) 2 
C) 3 
D) 4 B

Question 3

Which of the following option is incorrect about the sludges?

Accepted Answer

A) Sludges are soft, loose and slimy precipitate 
B) They are non-adherent deposits and can be easily removed 
C) Formed generally at heated portions of the boiler 
D) Can be removed by blow down operation 
A) Sludges are soft, loose and slimy precipitate 
B) They are non-adherent deposits and can be easily removed 
C) Formed generally at heated portions of the boiler 
D) Can be removed by blow down operation C

Question 4

How many types of wastewater treatment plants are there based on the type of wastewater?

Accepted Answer

A) 5 
B) 4 
C) 2 
D) 3 
A) 5 
B) 4 
C) 2 
D) 3

Question 5

The optimum temperature for bacterial activity is in what range?

Accepted Answer

A) 25-35 degree Celsius 
B) 50 degree Celsius 
C) 20 degree Celsius 
D) 40 degree Celsius 
A) 25-35 degree Celsius 
B) 50 degree Celsius 
C) 20 degree Celsius 
D) 40 degree Celsius

Question 6

What is the growth of huge amounts of algae and other aquatic plants leading to the deterioration of the water quality called?

Accepted Answer

A) Eutrophication 
B) Algae growth 
C) Nitrification 
D) Denitrification 
A) Eutrophication 
B) Algae growth 
C) Nitrification 
D) Denitrification

Question 7

Foaming is caused by the formation of ___________

Accepted Answer

A) Acids 
B) Alcohols 
C) Oils and alkalis 
D) Ketones 
A) Acids 
B) Alcohols 
C) Oils and alkalis 
D) Ketones

Question 8

What is added to the water treatment tank to settle the colloidal particles?

Accepted Answer

A) Alum 
B) Alum and lime 
C) Lime 
D) Potash 
A) Alum 
B) Alum and lime 
C) Lime 
D) Potash

Question 9

_________ are constructed for water supply, electricity generation, recreation, irrigation and others.

Accepted Answer

A) Swimming pools 
B) Ponds 
C) Reservoirs 
D) Tanks 
A) Swimming pools 
B) Ponds 
C) Reservoirs 
D) Tanks

Question 10

The term 'Sullage' refers to:

Accepted Answer

A) Fresh wastewater 
B) Septic wastewater 
C) Wastewater from kitchen, laundry 
D) Toxic wastewater 
A) Fresh wastewater 
B) Septic wastewater 
C) Wastewater from kitchen, laundry 
D) Toxic wastewater

Question 11

In which process, the fluoride content of water is raised?

Accepted Answer

A) Chlorination 
B) Fluoridation 
C) Defluoridation 
D) Flocculation 
A) Chlorination 
B) Fluoridation 
C) Defluoridation 
D) Flocculation

Question 12

What is the type of pollution where the pollutants reach the water body in points called?

Accepted Answer

A) Point-source pollution 
B) Diffuse pollution 
C) Point-source contamination 
D) Diffuse contamination 
A) Point-source pollution 
B) Diffuse pollution 
C) Point-source contamination 
D) Diffuse contamination

Question 13

Disinfection of water in our country is mainly done by ____________

Accepted Answer

A) Oxygenation 
B) Hydration 
C) Chlorination 
D) Filtration 
A) Oxygenation 
B) Hydration 
C) Chlorination 
D) Filtration

Question 14

On how many conditions does the intervention of wastewater depend on?

Accepted Answer

A) 5 
B) 7 
C) 6 
D) 4 
A) 5 
B) 7 
C) 6 
D) 4

Question 15

What is the next step after water abstraction in wastewater treatment?

Accepted Answer

A) Supply to consumers 
B) Treatment 
C) Combine with stormwater 
D) Supply to receiving body 
A) Supply to consumers 
B) Treatment 
C) Combine with stormwater 
D) Supply to receiving body

Question 16

Which of the following is not used as a fluoride compound?

Accepted Answer

A) Sodium fluoride 
B) Sodium silico fluoride 
C) Hydrofluosilicic acid 
D) Sodium fluro carbonate 
A) Sodium fluoride 
B) Sodium silico fluoride 
C) Hydrofluosilicic acid 
D) Sodium fluro carbonate

Question 17

Which of the following requires aesthetically pleasant water?

Accepted Answer

A) Domestic use 
B) Industrial use 
C) Irrigation 
D) Aquaculture 
A) Domestic use 
B) Industrial use 
C) Irrigation 
D) Aquaculture

Question 18

The propulsion of water into steam drum by extremely rapid, almost explosive boiling of water at the heating surface is called ___________

Accepted Answer

A) Foaming 
B) Priming 
C) Corrosion 
D) Caustic embrittlement 
A) Foaming 
B) Priming 
C) Corrosion 
D) Caustic embrittlement

Question 19

The fluoride concentration for prevention of dental caries is ____________

Accepted Answer

A) 1mg/l 
B) 2mg/l 
C) 3mg/l 
D) 4mg/l 
A) 1mg/l 
B) 2mg/l 
C) 3mg/l 
D) 4mg/l

Question 20

Wastewater can become septic by the loss of:

Accepted Answer

A) Dissolved oxygen content 
B) Carbon content 
C) Organic compounds 
D) Water content 
A) Dissolved oxygen content 
B) Carbon content 
C) Organic compounds 
D) Water content

Which minerals and in what form are present in ground water?

The extent of water treatment depends on how many factors?

Which of the following option is incorrect about the sludges?

How many types of wastewater treatment plants are there based on the type of wastewater?

The optimum temperature for bacterial activity is in what range?

What is the growth of huge amounts of algae and other aquatic plants leading to the deterioration of the water quality called?

Foaming is caused by the formation of ___________

What is added to the water treatment tank to settle the colloidal particles?

_________ are constructed for water supply, electricity generation, recreation, irrigation and others.

The term 'Sullage' refers to:

In which process, the fluoride content of water is raised?

What is the type of pollution where the pollutants reach the water body in points called?

Disinfection of water in our country is mainly done by ____________

On how many conditions does the intervention of wastewater depend on?

What is the next step after water abstraction in wastewater treatment?

Which of the following is not used as a fluoride compound?

Which of the following requires aesthetically pleasant water?

The propulsion of water into steam drum by extremely rapid, almost explosive boiling of water at the heating surface is called ___________

The fluoride concentration for prevention of dental caries is ____________

Wastewater can become septic by the loss of:

Understanding Water Pollution and Its Effects on Aquatic Life

Water Pollution and Regulations

Pollutants From Wastewater: A Study on River Pollution Control and Wastewater Treatment

Water Treatment and Softening Processes

Compounds, Fluoridation, and Oxidation Resistance

Grit Chambers and Activated Sludge Processes

Demineralized Water, Ion-Exchange, and Ozonation Processes

Sewage Sludge and Treatment Processes

Filters

Exam 5: Water Treatment and Pollution Control

Which minerals and in what form are present in ground water?

The extent of water treatment depends on how many factors?

Which of the following option is incorrect about the sludges?

How many types of wastewater treatment plants are there based on the type of wastewater?

The optimum temperature for bacterial activity is in what range?

What is the growth of huge amounts of algae and other aquatic plants leading to the deterioration of the water quality called?

Foaming is caused by the formation of ___________

What is added to the water treatment tank to settle the colloidal particles?

_________ are constructed for water supply, electricity generation, recreation, irrigation and others.

The term 'Sullage' refers to:

In which process, the fluoride content of water is raised?

What is the type of pollution where the pollutants reach the water body in points called?

Disinfection of water in our country is mainly done by ____________

On how many conditions does the intervention of wastewater depend on?

What is the next step after water abstraction in wastewater treatment?

Which of the following is not used as a fluoride compound?

Which of the following requires aesthetically pleasant water?

The propulsion of water into steam drum by extremely rapid, almost explosive boiling of water at the heating surface is called ___________

The fluoride concentration for prevention of dental caries is ____________

Wastewater can become septic by the loss of:

Understanding Water Pollution and Its Effects on Aquatic Life

Water Pollution and Regulations

Pollutants From Wastewater: A Study on River Pollution Control and Wastewater Treatment

Water Treatment and Softening Processes

Compounds, Fluoridation, and Oxidation Resistance

Grit Chambers and Activated Sludge Processes

Demineralized Water, Ion-Exchange, and Ozonation Processes

Sewage Sludge and Treatment Processes

Filters