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WorksheetsA348-P06
Total questions: 10
Worksheet time: 5mins
Which water filtration method will allow particles sized 10-5 to 10-7 meters to pass through?
ultrafiltration
microfiltration
nanofiltration
reverse osmosis
Which filtration method will allow particles sized 10-7 to 10-8 meters to pass through?
microfiltration
ultrafiltration
nanofiltration
reverse osmosis
Can Na+ (sodium) pass through filter paper?
Yes
No
Can sand pass through filter paper?
Yes
No
What must a water filtration system be able to do?
It must make water dirty.
It must make dirty water turn into clean water.
It must let dirt pass through pebbles.
Water can be filtered by sand.
True
False
Sand, gravel and rocks can be used to filter dirty water.
True
False
Sieving is used for separating two substances with ________________________ sizes.
A. Different
B. Same
C. Similar
D. Both A nd C
The correct order of water purification in water treatment plant are:
filtration, coagulation, sedimentation, oxidation, chlorination and fluoridation
filtration,oxidation, coagulation, sedimentation, filtration, chlorination and fluoridation
Filtration, coagulation, sedimentation, filtration, chlorination and fluoridation
Filtration,oxidation, coagulation, sedimentation, chlorination and fluoridation
Which of these particles is NOT able to pass through a sand, gravel, and charcoal filter?
bacteria
water
viruses
large piece of dirt
