Question 1

When the hardness and alkalinity are around 30% what should be used?

Accepted Answer

A) sac 
B) wac 
C) wac, sac 
D) wac, sac, wba 
A) sac 
B) wac 
C) wac, sac 
D) wac, sac, wba C

Question 2

While designing the demineralisation plant what is considered as the strong acidic cation load?

Accepted Answer

A) alkaline hardness 
B) alkaline hardness + ema 
C) ema 
D) silica 
A) alkaline hardness 
B) alkaline hardness + ema 
C) ema 
D) silica B

Question 3

While designing the demineralisation plant what is considered as the weak basic anion load?

Accepted Answer

A) alkaline hardness 
B) alkaline hardness + ema 
C) ema 
D) silica 
A) alkaline hardness 
B) alkaline hardness + ema 
C) ema 
D) silica C

Question 4

What is the tank volume of aeration for water flow of 50m3/h?

Accepted Answer

A) 40 m3 
B) 50 m3 
C) 80 m3 
D) 100 m3 
A) 40 m3 
B) 50 m3 
C) 80 m3 
D) 100 m3

Question 5

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 6

Manganese oxidation requires a high oxidation potential.

Accepted Answer

A) True 
 B)False

Question 7

In which year was the Ferrosand process patented?

Accepted Answer

A) 1960 
B) 1965 
C) 1970 
D) 1975 
A) 1960 
B) 1965 
C) 1970 
D) 1975

Question 8

For obtaining Silica<5 ppm which of these should be utilized?

Accepted Answer

A) sba followed by mixed be 
B) sba 
C) wba sba followed by mixed bed 
D) mixed bed 
A) sba followed by mixed be 
B) sba 
C) wba sba followed by mixed bed 
D) mixed bed

Question 9

What is the permitted concentration of arsenic in drinking water?

Accepted Answer

A) 10 g/l 
B) 20 g/l 
C) 30 g/l 
D) 40 g/l 
A) 10 g/l 
B) 20 g/l 
C) 30 g/l 
D) 40 g/l

Question 10

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 11

The aeration system will decrease the redox potential of the water.

Accepted Answer

A) True 
 B)False

Question 12

At what pH should the water be maintained?

Accepted Answer

A) 6.5 
B) 7.5 
C) 8.5 
D) 9 
A) 6.5 
B) 7.5 
C) 8.5 
D) 9

Question 13

What is the minimum required redox potential of water?

Accepted Answer

A) 100 mv 
B) 200 mv 
C) 300 mv 
D) 400 mv 
A) 100 mv 
B) 200 mv 
C) 300 mv 
D) 400 mv

Question 14

While designing the demineralisation plant what is considered as the strong basic anion load?

Accepted Answer

A) alkaline hardness 
B) alkaline hardness + ema+co2 
C) ema+silica 
D) silica+co2+ alkalinity+ema 
A) alkaline hardness 
B) alkaline hardness + ema+co2 
C) ema+silica 
D) silica+co2+ alkalinity+ema

Question 15

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 16

Which of the following is the pure 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

What is the desirable bed depth for AFM filtration?

Accepted Answer

A) 1000 mm 
B) 1200 mm 
C) 1500 mm 
D) 1800 mm 
A) 1000 mm 
B) 1200 mm 
C) 1500 mm 
D) 1800 mm

Question 18

In case along with silica, there is high content in sulphide and chloride what should be used?

Accepted Answer

A) wba 
B) wba and sba 
C) sba 
D) sba,wba and wac 
A) wba 
B) wba and sba 
C) sba 
D) sba,wba and wac

Question 19

What is the minimum time of aeration?

Accepted Answer

A) 20 minutes 
B) 40 minutes 
C) 60 minutes 
D) 80 minutes 
A) 20 minutes 
B) 40 minutes 
C) 60 minutes 
D) 80 minutes

Question 20

What is the permitted concentration of manganese in drinking water?

Accepted Answer

A) 30 g/l 
B) 40 g/l 
C) 50 g/l 
D) 60 g/l 
A) 30 g/l 
B) 40 g/l 
C) 50 g/l 
D) 60 g/l

When the hardness and alkalinity are around 30% what should be used?

While designing the demineralisation plant what is considered as the strong acidic cation load?

While designing the demineralisation plant what is considered as the weak basic anion load?

What is the tank volume of aeration for water flow of 50m³/h?

The fluoride concentration for prevention of dental caries is________

Manganese oxidation requires a high oxidation potential.

In which year was the Ferrosand process patented?

For obtaining Silica<5 ppm which of these should be utilized?

What is the permitted concentration of arsenic in drinking water?

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

The aeration system will decrease the redox potential of the water.

At what pH should the water be maintained?

What is the minimum required redox potential of water?

While designing the demineralisation plant what is considered as the strong basic anion load?

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

Which of the following is the pure compound?

What is the desirable bed depth for AFM filtration?

In case along with silica, there is high content in sulphide and chloride what should be used?

What is the minimum time of aeration?

What is the permitted concentration of manganese in drinking water?

Water Quality and Demand Measurements

Reservoirs and Water Supply Scheme

Water and Pipe Regulations

Pipes, Valves, and Pumps in the Dairy Industry

Water Treatment Processes and Unit Operations

Water Treatment and Plumbing Systems

Pipe and Pump

Filters

Exam 6: Demineralisation Plant Design and Water Treatment

When the hardness and alkalinity are around 30% what should be used?

While designing the demineralisation plant what is considered as the strong acidic cation load?

While designing the demineralisation plant what is considered as the weak basic anion load?

What is the tank volume of aeration for water flow of 50m3/h?

The fluoride concentration for prevention of dental caries is________

Manganese oxidation requires a high oxidation potential.

In which year was the Ferrosand process patented?

For obtaining Silica<5 ppm which of these should be utilized?

What is the permitted concentration of arsenic in drinking water?

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

The aeration system will decrease the redox potential of the water.

At what pH should the water be maintained?

What is the minimum required redox potential of water?

While designing the demineralisation plant what is considered as the strong basic anion load?

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

Which of the following is the pure compound?

What is the desirable bed depth for AFM filtration?

In case along with silica, there is high content in sulphide and chloride what should be used?

What is the minimum time of aeration?

What is the permitted concentration of manganese in drinking water?

Water Quality and Demand Measurements

Reservoirs and Water Supply Scheme

Water and Pipe Regulations

Pipes, Valves, and Pumps in the Dairy Industry

Water Treatment Processes and Unit Operations

Water Treatment and Plumbing Systems

Pipe and Pump

Filters

What is the tank volume of aeration for water flow of 50m³/h?