Types of Drainage Systems: Master the Basics of Plumbing

Question 1

Which drainage system utilizes gravity as its primary force to transport wastewater through pipes?

Accepted Answer

Gravity-fed drainage system

Answer

Pumped drainage system

Answer

Septic system

Answer

Combined drainage system

Question 2

Which component is NOT found in a gravity-fed drainage system?

Accepted Answer

Lift station

Answer

Main drain line

Answer

Trap

Question 3

Which type of drainage system relies exclusively on the force of gravity to move wastewater?

Accepted Answer

Gravity-fed system

Answer

Pumped system

Answer

Septic system

Question 4

Which component in a pumped drainage system is responsible for lifting wastewater to higher elevations?

Accepted Answer

Lift station

Answer

Drain field

Answer

Venting pipe

Question 5

Which type of drainage system is commonly employed in remote locations where municipal sewer lines are inaccessible?

Accepted Answer

Septic system

Answer

Gravity-fed system

Answer

Pumped system

Question 6

What is the primary purpose of a cleanout in a drainage system?

Accepted Answer

To provide convenient access for inspection and maintenance purposes

Answer

To prevent blockages from forming in the system

Answer

To enhance ventilation within the system

Question 7

Which advantage is associated with using a pumped drainage system?

Accepted Answer

It allows for drainage in areas below the level of the sewer line

Answer

It eliminates the need for gravity in the drainage process

Answer

It reduces the risk of blockages occurring in the system

Question 8

Identify a crucial component of a gravity-fed drainage system.

Accepted Answer

Drain pipes

Answer

Vent pipes

Answer

Sewage pumps

Answer

Septic tanks

Question 9

What is the primary distinction between a sanitary drain and a storm drain?

Accepted Answer

Sanitary drains carry wastewater, while storm drains carry rainwater

Answer

Sanitary drains are narrower than storm drains

Answer

Storm drains are used in commercial buildings, while sanitary drains are used in residential buildings

Answer

Sanitary drains use different materials than storm drains

Question 10

Which material is commonly used for drain pipes in residential buildings?

Accepted Answer

PVC

Answer

Cast iron

Answer

Copper

Answer

Galvanized steel

Question 11

What is the purpose of a backflow preventer in a drainage system?

Accepted Answer

Preventing sewage from flowing back into the water supply

Answer

Regulating water pressure in the system

Answer

Preventing drain clogs

Answer

Venting sewer gases outside the building

Question 12

In a pumped drainage system, what is the primary function of a sump pump?

Accepted Answer

To lift wastewater from a low-lying area to a higher elevation

Answer

To filter wastewater before it enters the main drain

Answer

To ventilate the drainage system

Question 13

In a septic system, what is the function of the leach field?

Accepted Answer

To disperse wastewater into the ground for natural filtration

Answer

To store and decompose wastewater from the septic tank

Answer

To pump wastewater back into the septic tank

Question 14

Which type of pipe is commonly used for the main sewer line of a building?

Accepted Answer

Cast iron pipe

Answer

PVC pipe

Answer

Copper pipe

Question 15

What is the main purpose of a vent stack in a drainage system?

Accepted Answer

To provide ventilation and prevent pressure buildup within the system

Answer

To collect wastewater before it enters the main drain

Answer

To clean out the drainage system

Question 16

Which of the following is NOT a critical factor to consider when selecting a drainage system for a building?

Accepted Answer

Aesthetic appeal

Answer

Building size and usage

Answer

Soil conditions

Question 17

What is the maximum allowable distance between a vent stack and a plumbing fixture in a drainage system?

Accepted Answer

10 feet

Answer

5 feet

Answer

15 feet

Question 18

Which type of drainage system relies on a pumping mechanism to transport wastewater uphill?

Accepted Answer

Pumped System

Answer

Septic System

Answer

Hydrostatic System

Answer

Gravity-Fed System

Question 19

In a gravity-fed drainage system, which component prevents wastewater from flowing back into the system?

Accepted Answer

Trap

Answer

Vent

Answer

Cleanout

Answer

Cutoff Valve

Question 20

Which type of septic system utilizes a drainfield to distribute wastewater into the ground?

Accepted Answer

Conventional Septic System

Answer

Mound System

Answer

Chamber System

Answer

Aerobic Septic System

Question 21

Which type of trap is commonly employed in kitchen sinks to prevent clogging?

Accepted Answer

P-Trap

Answer

Bell Trap

Answer

Drum Trap

Answer

S-Trap

Question 22

What is the primary purpose of a vent in a drainage system?

Accepted Answer

To admit air into the system, preventing siphoning and ensuring proper flow.

Answer

To filter out solid waste from the wastewater.

Answer

To accumulate wastewater and prevent overflows.

Question 23

In residential buildings, which material is frequently used for drainage pipes?

Accepted Answer

PVC (Polyvinyl Chloride)

Answer

Copper

Answer

Cast Iron

Answer

Galvanized Steel

Question 24

What is a key advantage of a pumped drainage system?

Accepted Answer

It allows for installation below the gravity flow line, enabling drainage in low-lying areas.

Answer

It needs less maintenance than other systems.

Answer

It costs less to install than other systems.

Question 25

Which type of system is suitable for areas without access to municipal sewer lines?

Accepted Answer

Septic System

Answer

Gravity-Fed System

Answer

Pumped System

Answer

Hydrostatic System

Question 26

What is the purpose of a cleanout in a drainage system?

Accepted Answer

To provide access for inspection, maintenance, and clearing of blockages.

Answer

To collect wastewater and prevent overflows.

Answer

To regulate the flow rate of wastewater.