Question 1 of 8
Intermediate

Who has the financial responsibility in the case of flooding in most countries?

Question 2 of 8
Intermediate

Of the three anti-flooding systems, why is the lifting station the superior system?

Question 3 of 8
Intermediate

Why is the life cycle cost of the pressurised wastewater system low?

Question 4 of 8
Intermediate

What are the four most common types of wastewater from commercial buildings?

Question 5 of 8
Intermediate

Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection: Is not sensitive to fat, grease, sands and solids in the water. Makes it possible to use sanitary facilities in case of backflow. Offers protection for paved areas. Can be connected to buildings’ storm water drains.

Question 6 of 8
Intermediate

Which treatment is necessary for storm water?

Question 7 of 8
Intermediate

Which three factors have increased the risk of flooding and back flow?

Question 8 of 8
Intermediate

Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection. Ideal for safeguarding electrical and other high value equipment. Offers unlimited use of sanitary facilities in case of backflow. Is easily serviced. Can be installed in a building’s storm water drains. Is not sensitive to sand and solid objects in the water.

Question 8 of 8
Intermediate

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1: Who has the financial responsibility in the case of flooding in most countries?
The building owner and the building designers
1: Who has the financial responsibility in the case of flooding in most countries?
The government and the wastewater authorities
1: Who has the financial responsibility in the case of flooding in most countries?
The building designers and the contractors
2: Of the three anti-flooding systems, why is the lifting station the superior system?
It is located outside the building which means bad odour is never a problem
2: Of the three anti-flooding systems, why is the lifting station the superior system?
The storage volume is high and it is easy to assemble and install
2: Of the three anti-flooding systems, why is the lifting station the superior system?
It is pre-assembled and its location inside the building makes it easily accessible for service. Furthermore, it offers maximum backflow and flooding protection
3: Why is the life cycle cost of the pressurised wastewater system low?
There are only a few gravitation pipes outside the building and the excavation cost is low
3: Why is the life cycle cost of the pressurised wastewater system low?
The initial cost of the lifting station is lower compared with a pit and there are no gravitation pipes outside the building
3: Why is the life cycle cost of the pressurised wastewater system low?
The lifting station and the pipe system is maintenance-free
4: What are the four most common types of wastewater from commercial buildings?
Wastewater, storm water, drainage water and wastewater from parking areas
4: What are the four most common types of wastewater from commercial buildings?
Rainwater, wastewater, storm water and drainage water
4: What are the four most common types of wastewater from commercial buildings?
Wastewater, storm water, air-conditioning wastewater and wastewater from parking areas
5: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection: Is not sensitive to fat, grease, sands and solids in the water. Makes it possible to use sanitary facilities in case of backflow. Offers protection for paved areas. Can be connected to buildings’ storm water drains.
Anti-flooding valves
5: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection: Is not sensitive to fat, grease, sands and solids in the water. Makes it possible to use sanitary facilities in case of backflow. Offers protection for paved areas. Can be connected to buildings’ storm water drains.
Pumping stations
5: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection: Is not sensitive to fat, grease, sands and solids in the water. Makes it possible to use sanitary facilities in case of backflow. Offers protection for paved areas. Can be connected to buildings’ storm water drains.
Lifting stations
6: Which treatment is necessary for storm water?
It has to go through an oil/petrol separator
6: Which treatment is necessary for storm water?
It has to go through a sand pressure
6: Which treatment is necessary for storm water?
None – it is pumped directly to the recipient
7: Which three factors have increased the risk of flooding and back flow?
A higher frequency of rainfalls, increased length of rainfalls and more paved areas today than earlier.
7: Which three factors have increased the risk of flooding and back flow?
A higher frequency of rainfalls, unmaintained sewers and an increase in paved areas
7: Which three factors have increased the risk of flooding and back flow?
A higher frequency of rainfalls and buildings that are poorly equipped for increased amounts of water.
8: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection. Ideal for safeguarding electrical and other high value equipment. Offers unlimited use of sanitary facilities in case of backflow. Is easily serviced. Can be installed in a building’s storm water drains. Is not sensitive to sand and solid objects in the water.
Anti-flooding valves
8: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection. Ideal for safeguarding electrical and other high value equipment. Offers unlimited use of sanitary facilities in case of backflow. Is easily serviced. Can be installed in a building’s storm water drains. Is not sensitive to sand and solid objects in the water.
Pumping stations
8: Which method of backflow prevention has the following advantages: Offers maximum backflow and flooding protection. Ideal for safeguarding electrical and other high value equipment. Offers unlimited use of sanitary facilities in case of backflow. Is easily serviced. Can be installed in a building’s storm water drains. Is not sensitive to sand and solid objects in the water.
Lifting stations