Question 1

As far as safer handling is considered, which of the following is used for fluoridation?

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 2

One cubic metre of bone can treat how much quantity of water containing 3.5 ppm of fluoride?

Accepted Answer

A) 10m3 
B) 100m3 
C) 1000m3 
D) 10000m3 
A) 10m3 
B) 100m3 
C) 1000m3 
D) 10000m3

Question 3

Dezincification of brass is prevented by addition of ________

Accepted Answer

A) Nickel 
B) Zinc 
C) Arsenic 
D) Tungsten 
A) Nickel 
B) Zinc 
C) Arsenic 
D) Tungsten

Question 4

Which of these materials is not added to iron for improving its oxidation resistance?

Accepted Answer

A) Nickel 
B) Chromium 
C) Aluminum 
D) Silicon 
A) Nickel 
B) Chromium 
C) Aluminum 
D) Silicon

Question 5

_________ is used to prevent duralumin from corrosion.

Accepted Answer

A) Iron 
B) Kynal 
C) Titanium 
D) Alclad 
A) Iron 
B) Kynal 
C) Titanium 
D) Alclad

As far as safer handling is considered, which of the following is used for fluoridation?

One cubic metre of bone can treat how much quantity of water containing 3.5 ppm of fluoride?

Dezincification of brass is prevented by addition of ________

Which of these materials is not added to iron for improving its oxidation resistance?

_________ is used to prevent duralumin from corrosion.

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

Water Treatment and Pollution Control

Grit Chambers and Activated Sludge Processes

Demineralized Water, Ion-Exchange, and Ozonation Processes

Sewage Sludge and Treatment Processes

Filters

Exam 6: Compounds, Fluoridation, and Oxidation Resistance

As far as safer handling is considered, which of the following is used for fluoridation?

One cubic metre of bone can treat how much quantity of water containing 3.5 ppm of fluoride?

Dezincification of brass is prevented by addition of ________

Which of these materials is not added to iron for improving its oxidation resistance?

_________ is used to prevent duralumin from corrosion.

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

Water Treatment and Pollution Control

Grit Chambers and Activated Sludge Processes

Demineralized Water, Ion-Exchange, and Ozonation Processes

Sewage Sludge and Treatment Processes

Filters