1. Which of the following is a type of sewerage system where sewage and stormwater are carried in separate pipes?
(A) Combined sewerage system
(B) Separate sewerage system
(C) Partially separate system
(D) Simplified sewerage system
2. In a combined sewerage system:
(A) Sewage and stormwater flow in the same pipe
(B) Sewage and stormwater are always treated separately
(C) Only sewage is transported
(D) Only stormwater is transported
3. Which sewerage system is commonly used in areas with low population density and narrow streets?
(A) Combined system
(B) Separate system
(C) Simplified sewerage system
(D) Partially separate system
4. A partially separate sewerage system:
(A) Carries sewage and stormwater in the same pipe during dry weather
(B) Has two completely separate networks for all flows
(C) Only carries stormwater
(D) Only carries sewage
5. In a combined sewerage system, what is the main disadvantage during heavy rains?
(A) High treatment efficiency
(B) Overflow at treatment plants and flooding
(C) No flow in the sewer
(D) Reduced BOD removal
6. The simplified sewerage system is particularly suitable for:
(A) Large metropolitan cities
(B) Hilly terrains
(C) Low-income or peri-urban areas
(D) Industrial areas
7. Which type of sewerage system requires larger diameter pipes to accommodate both sewage and stormwater?
(A) Combined system
(B) Separate system
(C) Simplified system
(D) Partially separate system
8. In a separate sewerage system, the stormwater drains are usually:
(A) Smaller than sewage pipes
(B) Open channels or large diameter pipes
(C) Closed conduits only
(D) Not required
9. What is the main advantage of a separate sewerage system over a combined system?
(A) Requires less pipe
(B) Reduces overflow and flooding during heavy rains
(C) Easier to construct in hilly terrain
(D) Can carry both sewage and stormwater in a single pipe
10. Which of the following sewerage systems is cheaper to construct but may have maintenance issues in the long term?
(A) Combined system
(B) Separate system
(C) Simplified sewerage system
(D) Partially separate system