4th Class Power Engineering Unit B6:
Water Treatment Exam Questions &
Answers (Grade A+)
Cartridge type filters are similar to a filter found in:
Select one:
a. an aquarium
b. an oil filter on a car engine
c. a furnace air filter
d. a vacuum cleaner Hepa filter -
correct answer ✅b
Feedwater for a high pressure boiler should be:
Select one:
a. softened water
b. treated with phenolphthalein
c. treated city water
d. treated with salt -
correct answer ✅a
The main piece of equipment used to deliver titration reagents to
samples is a:
Select one:
,4th Class Power Engineering Unit B6:
Water Treatment Exam Questions &
Answers (Grade A+)
a. pipette
b. beaker
c. syringe
d. burette -
correct answer ✅d
The most commonly used method of determining TDS is by
measuring:
Select one:
a. alkalinity
b. pH
c. conductivity
d. hardness -
correct answer ✅c
When boiler feedwater is sourced from a lake, river, or
groundwater, there is no need to do the following:
Select one:
a. filtration
,4th Class Power Engineering Unit B6:
Water Treatment Exam Questions &
Answers (Grade A+)
b. deaeration
c. chlorination
d. clarification -
correct answer ✅c
A method of treatment, which is often used in conjunction with
settling tanks, is:
Select one:
a. deaeration
b. zeolite softening
c. demineralizing
d. filtration -
correct answer ✅d
The result of adding Aluminum Sulphate to the raw water is:
Select one:
a. sublimation to remove oxygen
b. eliminates electrical charge to create floc
c. eliminates corrosion
, 4th Class Power Engineering Unit B6:
Water Treatment Exam Questions &
Answers (Grade A+)
d. eliminates pitting -
correct answer ✅b
Hot lime-soda softeners:
Select one:
a. can treat quantities of water quicker than the cold process type
b. will remove all dissolved solids from the water
c. are mostly used in small heating plants
d. are only used when using well water -
correct answer ✅a
The addition of sulphites to remove oxygen in boiler water is known
as:
Select one:
a. oxygenating
b. scavenging
c. scrubbing
d. sulphating -
correct answer ✅b
Water Treatment Exam Questions &
Answers (Grade A+)
Cartridge type filters are similar to a filter found in:
Select one:
a. an aquarium
b. an oil filter on a car engine
c. a furnace air filter
d. a vacuum cleaner Hepa filter -
correct answer ✅b
Feedwater for a high pressure boiler should be:
Select one:
a. softened water
b. treated with phenolphthalein
c. treated city water
d. treated with salt -
correct answer ✅a
The main piece of equipment used to deliver titration reagents to
samples is a:
Select one:
,4th Class Power Engineering Unit B6:
Water Treatment Exam Questions &
Answers (Grade A+)
a. pipette
b. beaker
c. syringe
d. burette -
correct answer ✅d
The most commonly used method of determining TDS is by
measuring:
Select one:
a. alkalinity
b. pH
c. conductivity
d. hardness -
correct answer ✅c
When boiler feedwater is sourced from a lake, river, or
groundwater, there is no need to do the following:
Select one:
a. filtration
,4th Class Power Engineering Unit B6:
Water Treatment Exam Questions &
Answers (Grade A+)
b. deaeration
c. chlorination
d. clarification -
correct answer ✅c
A method of treatment, which is often used in conjunction with
settling tanks, is:
Select one:
a. deaeration
b. zeolite softening
c. demineralizing
d. filtration -
correct answer ✅d
The result of adding Aluminum Sulphate to the raw water is:
Select one:
a. sublimation to remove oxygen
b. eliminates electrical charge to create floc
c. eliminates corrosion
, 4th Class Power Engineering Unit B6:
Water Treatment Exam Questions &
Answers (Grade A+)
d. eliminates pitting -
correct answer ✅b
Hot lime-soda softeners:
Select one:
a. can treat quantities of water quicker than the cold process type
b. will remove all dissolved solids from the water
c. are mostly used in small heating plants
d. are only used when using well water -
correct answer ✅a
The addition of sulphites to remove oxygen in boiler water is known
as:
Select one:
a. oxygenating
b. scavenging
c. scrubbing
d. sulphating -
correct answer ✅b
