Types of Drainage Systems: A Comprehensive Guide for Plumbing Professionals

Question 1

Which type of drainage system is specifically designed to remove stormwater?

Accepted Answer

Storm drain

Answer

Sanitary sewer

Answer

Combined sewer

Answer

Septic tank

Question 2

What are the main components of a sanitary sewer system?

Accepted Answer

Pipes and manholes

Answer

Pumps and screens

Answer

Tanks and filters

Answer

Ditches and culverts

Question 3

What is the primary function of a catch basin in a storm drain system?

Accepted Answer

To collect sediment and debris

Answer

To regulate the flow of water

Answer

To provide access for maintenance

Answer

To pump water uphill

Question 4

Which type of drainage system combines both stormwater and sanitary wastewater?

Accepted Answer

Combined sewer

Answer

Storm drain

Answer

Sanitary sewer

Answer

French drain

Question 5

Which of the following is the main purpose of storm drains?

Accepted Answer

To collect and remove excess rainwater from paved surfaces

Answer

To transport wastewater from homes and businesses

Answer

To prevent erosion

Answer

To provide irrigation for landscaping

Question 6

What is a key feature of sanitary sewer systems?

Accepted Answer

They transport wastewater from homes and businesses to a treatment facility

Answer

They typically consist of large-diameter pipes

Answer

They are designed to handle both stormwater and wastewater

Answer

They are installed above ground

Question 7

Which type of drainage system combines both stormwater and wastewater?

Accepted Answer

Combined sewer system

Answer

Storm drain system

Answer

Sanitary sewer system

Answer

Dry well system

Question 8

What is the primary function of a manhole in a drainage system?

Accepted Answer

To provide access and inspection of underground pipes and connections

Answer

To collect and store stormwater runoff

Answer

To serve as a vent for sewer gases

Answer

To regulate the flow of wastewater

Question 9

What is the importance of backflow prevention devices in drainage systems?

Accepted Answer

To prevent contaminated water from flowing back into clean water supplies

Answer

To enhance the efficiency of drainage systems

Answer

To reduce the risk of flooding

Answer

To minimize the spread of waterborne diseases

Question 10

Which of the following is NOT a primary purpose of a drainage system?

Accepted Answer

Creating a more aesthetically pleasing environment

Answer

Removing excess water from an area

Answer

Preventing flooding

Answer

Improving water quality

Question 11

What is the primary function of a storm drain system?

Accepted Answer

Conveying stormwater runoff to prevent flooding

Answer

Collecting and dispersing groundwater for irrigation

Answer

Treating wastewater before releasing it into the environment

Answer

Distributing water to homes and businesses for consumption

Question 12

What is the main component of a sanitary sewer system that transports wastewater?

Accepted Answer

Gravity-fed pipes

Answer

Treatment plants that clean wastewater

Answer

Pumps that lift wastewater to higher elevations

Answer

Catch basins that collect stormwater

Question 13

Which type of drainage system combines both storm drains and sanitary sewers?

Accepted Answer

Combined sewer

Answer

Sanitary sewer only

Answer

French drain

Answer

Storm drain only

Question 14

What is a key design consideration for storm drain systems?

Accepted Answer

Capacity to handle peak stormwater flows

Answer

Cost of installation and maintenance

Answer

Aesthetics of the system

Answer

Environmental impact of the system

Question 15

What is a common issue associated with combined sewer systems?

Accepted Answer

Overloading and overflow during heavy rainfall events

Answer

Blockages caused by grease and debris

Answer

Corrosion of pipes due to acidic wastewater

Answer

Infiltration of groundwater into the system

Question 16

What is a recommended approach for maintaining drainage systems?

Accepted Answer

Regular cleaning, inspection, and timely repairs

Answer

Leaving tree roots to grow into pipes

Answer

Using harsh chemicals to unclog drains

Answer

Ignoring minor issues until they become major problems

Question 17

What is the primary function of a sump pump in a drainage system?

Accepted Answer

Removing water from below-grade areas to prevent flooding

Answer

Treating and releasing wastewater into the environment

Answer

Pumping wastewater to higher elevations

Answer

Collecting and distributing stormwater runoff

Question 18

Which of the following best describes a French drain?

Accepted Answer

A gravel-filled trench with a perforated pipe to collect and drain water

Answer

An open channel that carries water above ground

Answer

A gravity-fed pipe that conveys wastewater

Answer

A pressurized pipe system that uses pumps to move water

Question 19

What is the primary advantage of using a perforated pipe in a French drain?

Accepted Answer

It allows water to enter the drain from multiple directions

Answer

It provides structural support for the drain

Answer

It prevents clogging of the drain

Answer

It improves the drainage capacity of the drain

Question 20

Which type of drainage system is designed to convey rainwater and melted snow away from buildings and impervious surfaces?

Accepted Answer

Storm drain

Answer

French drain

Answer

Subsurface drainage system

Answer

Sanitary sewer

Question 21

Which type of drainage system is used to remove wastewater from homes, businesses, and other sources?

Accepted Answer

Sanitary sewer

Answer

Gutter

Answer

Downspout

Answer

Storm drain

Question 22

Which type of drainage system carries both stormwater and wastewater?

Accepted Answer

Combined sewer

Answer

Surface drain

Answer

Catch basin

Answer

Dry well

Question 23

Which of the following is a crucial characteristic of a well-designed storm drain system?

Accepted Answer

Sufficient capacity to manage heavy rainfall events

Answer

Use of permeable materials to promote infiltration

Answer

Frequent cleaning to prevent clogging

Answer

Shallow depth for ease of maintenance

Question 24

What is the primary material used in the construction of sanitary sewer pipes?

Accepted Answer

Vitrified clay or plastic

Answer

Copper

Answer

Cast iron

Answer

Concrete

Question 25

What is the primary function of a backflow prevention device within a drainage system?

Accepted Answer

Preventing contaminated water from flowing back into the potable water supply

Answer

Regulating the flow of water through the system

Answer

Protecting the system from freezing damage

Question 26

What is the purpose of a drainage easement on a property?

Accepted Answer

Allowing the installation and maintenance of drainage infrastructure on adjacent property

Answer

Ensuring access to a public water supply

Answer

Restricting the use of the property for certain purposes

Question 27

Which organization is responsible for regulating the discharge of wastewater into water bodies?

Accepted Answer

Environmental Protection Agency (EPA)

Answer

American Society of Plumbing Engineers (ASPE)

Answer

National Plumbing Code (NPC)

Answer

Water Quality Association (WQA)