# Plumbing And Sanitary Quiz Set B

Approved & Edited by ProProfs Editorial Team
The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.
| By Saklay_bamboo
S
Saklay_bamboo
Community Contributor
Quizzes Created: 6 | Total Attempts: 4,141
Questions: 80 | Attempts: 1,138

Settings

Are you planning to study engineering or are you looking to learn about plumbing and sanitary? The quiz will assist you in identifying the most idyllic place for your engineering studies

• 1.

### Fixture UNIT VALUE of a Bathtub

• A.

1

• B.

1.5

• C.

2

• D.

3

C. 2
Explanation
The given options represent different values for the fixture UNIT VALUE of a bathtub. The correct answer is 2, which means that the fixture UNIT VALUE of the bathtub is 2.

Rate this question:

• 2.

### Fixture UNIT VALUE of a Kitchen Sink

• A.

1

• B.

1.5

• C.

2

• D.

3

C. 2
Explanation
The answer 2 is the correct option for the fixture unit value of a kitchen sink. Fixture unit value is a measure of the water flow rate and drainage capacity of a plumbing fixture. A kitchen sink typically has a fixture unit value of 2 because it requires a moderate amount of water flow and drainage capacity compared to other fixtures.

Rate this question:

• 3.

### Fixture UNIT VALUE of a Floor Drain

• A.

1

• B.

1.5

• C.

2

• D.

3

A. 1
Explanation
The given options represent the unit value of a floor drain fixture. The correct answer is 1, which means that the floor drain has a unit value of 1. This indicates that it is a basic or standard floor drain fixture. The other options (1.5, 2, 3) would represent floor drains with higher unit values, indicating that they have additional features or specifications compared to the basic one.

Rate this question:

• 4.

### Fixture UNIT VALUE of a Residential Sink

• A.

1

• B.

1.5

• C.

2

• D.

3

B. 1.5
Explanation
The correct answer is 1.5 because it is the most appropriate value for the fixture unit of a residential sink. The other options (1, 2, and 3) are either too low or too high for a typical residential sink. A fixture unit is a measure of the water flow rate and drainage capacity of a plumbing fixture, and a value of 1.5 is commonly assigned to a residential sink.

Rate this question:

• 5.

### Fixture UNIT VALUE of a Laundry Tub

• A.

1

• B.

1.5

• C.

2

• D.

3

C. 2
Explanation
The fixture unit value of a laundry tub is 2. This means that the laundry tub is assigned a value of 2 when calculating the total fixture units in a plumbing system. Fixture unit values are used to determine the water demand and pipe sizing requirements for a building.

Rate this question:

• 6.

### Fixture UNIT VALUE of a Shower Bath

• A.

1

• B.

1.5

• C.

2

• D.

3

C. 2
Explanation
The correct answer is 2. This suggests that the fixture unit value of a shower bath is 2. Fixture unit value is a measurement used to determine the water flow rate and drainage requirements for plumbing fixtures. In this case, a shower bath has a fixture unit value of 2, indicating that it requires a moderate amount of water flow and drainage capacity.

Rate this question:

• 7.

### Fixture UNIT VALUE of a Slop Sink

• A.

1

• B.

1.5

• C.

2

• D.

3

D. 3
Explanation
The correct answer is 3 because it is the value that corresponds to the fixture UNIT of a Slop Sink. The given options 1, 1.5, and 2 do not match with the value of the Slop Sink fixture UNIT, which is 3.

Rate this question:

• 8.

### Fixture UNIT VALUE of a Public or Hotel Sink

• A.

1

• B.

1.5

• C.

2

• D.

3

C. 2
Explanation
The given options represent different unit values for a public or hotel sink fixture. The correct answer is 2, which implies that the sink fixture has a unit value of 2. This could indicate the quality or size of the sink fixture, with 2 being a moderate or standard value.

Rate this question:

• 9.

### Fixture UNIT VALUE for every 15 square foot of roof drain

• A.

1

• B.

1.5

• C.

2

• D.

3

A. 1
Explanation
The given statement suggests that for every 15 square feet of roof drain, the fixture unit value is 1. This means that for every 15 square feet, the roof drain has a capacity or flow rate equivalent to 1 fixture unit. Fixture units are a measure of the demand or flow rate of plumbing fixtures, so this indicates that the roof drain has a relatively low flow rate compared to other fixtures.

Rate this question:

• 10.

### Fixture UNIT VALUE of ONE Bathroom consisting of 1 water closet, lavatory, bathtub and overhead shower or water closet, lavatory and shower compartment.

• A.

3

• B.

5

• C.

6

• D.

8

D. 8
Explanation
The correct answer is 8 because the fixture unit value for a bathroom with a water closet, lavatory, bathtub, and overhead shower is 8. This means that this particular bathroom requires a plumbing system capable of handling 8 fixture units to ensure proper drainage and water flow.

Rate this question:

• 11.

### Fixture UNIT VALUE of a Combination Fixture

• A.

3

• B.

5

• C.

6

• D.

8

A. 3
Explanation
The given answer, 3, is the correct value for the combination fixture. This suggests that the combination fixture is made up of 3 different parts or components.

Rate this question:

• 12.

### Fixture UNIT VALUE of a Urinal

• A.

3

• B.

5

• C.

6

• D.

8

B. 5
Explanation
The correct answer is 5 because it is the unit value of a urinal fixture.

Rate this question:

• 13.

### Fixture UNIT VALUE of a Water Closet

• A.

3

• B.

5

• C.

6

• D.

8

C. 6
Explanation
The correct answer is 6. This suggests that the fixture unit value of a water closet is 6. Fixture unit values are used to determine the water supply requirements for plumbing fixtures. The higher the fixture unit value, the greater the demand for water. In this case, a water closet is assigned a fixture unit value of 6, indicating that it requires a significant amount of water for proper functioning.

Rate this question:

• 14.

### A type of house drain that receives the discharge of sanitary and domestic wastes only. the waste is conveyed on a septic tank or public sewer.

• A.

Combined Drain

• B.

Storm Drain

• C.

Industrial Drain

• D.

Sanitary Drain

D. Sanitary Drain
Explanation
A sanitary drain is a type of house drain that is specifically designed to receive the discharge of sanitary and domestic wastes only. This means that it is meant to handle waste from bathrooms, kitchens, and other areas where domestic waste is generated. The waste is then conveyed either to a septic tank or a public sewer for proper disposal. This type of drain ensures that sanitary waste is properly separated and disposed of, preventing contamination and maintaining hygiene within the household and the surrounding environment.

Rate this question:

• 15.

### A type of house drain that receives discharges of sanitary waste as well as storm water. this is the oldest form of house drain and NO longer permitted.

• A.

Combined Drain

• B.

Storm Drain

• C.

Industrial Drain

• D.

Sanitary Drain

A. Combined Drain
Explanation
A combined drain is a type of house drain that receives both sanitary waste and storm water. This type of drain was commonly used in the past but is no longer permitted. It is called a combined drain because it combines the discharge of both types of waste. This can lead to issues such as contamination of water sources and overloading of sewer systems. Due to these concerns, combined drains are no longer allowed and separate systems for sanitary waste and storm water are now required.

Rate this question:

• 16.

### It conveys all storm clear water or surface water waste except sanitary wastes. it terminates into lakes, rivers, or natural basins.

• A.

Combined Drain

• B.

Storm Drain

• C.

Industrial Drain

• D.

Sanitary Drain

B. Storm Drain
Explanation
A storm drain is a type of drain that is designed to carry away stormwater or surface water waste, excluding sanitary wastes. It is responsible for collecting rainwater from roads, parking lots, and other surfaces, and directing it into lakes, rivers, or natural basins. Unlike sanitary drains, which handle wastewater from toilets, sinks, and other sources, storm drains specifically deal with rainwater runoff.

Rate this question:

• 17.

### A house drain that receives discharges from industrial equipment that contain some objectionable acid wastes.

• A.

Combined Drain

• B.

Storm Drain

• C.

Industrial Drain

• D.

Sanitary Drain

C. Industrial Drain
Explanation
An industrial drain is the correct answer because it is specifically designed to receive discharges from industrial equipment, including those that contain objectionable acid wastes. This type of drain is built to handle the unique demands and potential hazards associated with industrial waste, ensuring proper disposal and preventing any negative impacts on the environment or public health.

Rate this question:

• 18.

### A portion of the plumbing system that receives discharges of all soil and waste stacks within the building, and conveys the same to the house sewer.

• A.

House Drain

• B.

Soil Drain

• C.

Waste Drain

• D.

Main Drain

A. House Drain
Explanation
The correct answer is House Drain. The house drain is a part of the plumbing system that collects and carries the discharges of all soil and waste stacks within the building to the house sewer. It is responsible for removing wastewater from the building and transporting it to the sewer system.

Rate this question:

• 19.

### Reduces the action scouring action in the pipe, thus the solid waste are carried along the bottom of the pipe.

• A.

House Drain

• B.

Oversize House Drain

• C.

Floor Drain

• D.

Catch Basin

B. Oversize House Drain
Explanation
An oversize house drain reduces the action scouring action in the pipe, allowing solid waste to be carried along the bottom of the pipe. This means that larger particles or debris are less likely to get stuck or cause blockages in the drain. By having a larger diameter, the oversize house drain can accommodate more waste and prevent clogs from occurring.

Rate this question:

• 20.

### Is a device designed to convey wastes from garage, wash rack, grease pits and repair floors into the house drain.

• A.

Yard Catch Basin

• B.

Grease Basin

• C.

Garage Catch Basin

• D.

Catch Basin

C. Garage Catch Basin
Explanation
A garage catch basin is a device specifically designed to transport waste materials from areas such as garages, wash racks, grease pits, and repair floors into the house drain. It serves as a collection point for these waste materials and ensures that they are properly conveyed to the appropriate drainage system.

Rate this question:

• 21.

### It is a receptacle used to receive water to be drained from the floor into the plumbing system.

• A.

House Drain

• B.

Oversize House Drain

• C.

Floor Drain

• D.

Catch Basin

C. Floor Drain
Explanation
A floor drain is a receptacle designed to collect and drain water from the floor into the plumbing system. It is commonly found in areas prone to water accumulation, such as basements, laundry rooms, and commercial kitchens. The floor drain prevents water damage by efficiently removing excess water and directing it to the sewer or septic system. It is an essential component in maintaining a dry and safe environment, especially in buildings with high water usage or in flood-prone areas.

Rate this question:

• 22.

### Consists of a running trap installed under the basement floor to protect it from freezing

• A.

Floor Drain

• B.

Oversize House Drain

• C.

Area Drain

• D.

Floor Basin

C. Area Drain
Explanation
An area drain is a type of drainage system that is designed to collect and remove excess water from a specific area, such as a basement floor. It typically consists of a running trap installed under the basement floor to prevent freezing and protect the area from water damage. The area drain helps to prevent water buildup and potential flooding by redirecting the water to a proper drainage system.

Rate this question:

• 23.

### Is a device used in kitchens serving hotels, dining rooms, clubhouses and restaurants.

• A.

Yard Catch Basin

• B.

Grease Basin

• C.

Garage Catch Basin

• D.

Oil Catch Basin

B. Grease Basin
Explanation
A grease basin is a device used in kitchens serving hotels, dining rooms, clubhouses, and restaurants. It is specifically designed to catch and collect grease and oil that is produced during cooking processes. This helps to prevent the grease from clogging drains and causing plumbing issues. The grease basin is an essential tool in maintaining a clean and efficient kitchen environment.

Rate this question:

• 24.

### Is a  receptacle used to catch surface water drained from cemented courts, driveways, and yards.

• A.

Yard Catch Basin

• B.

Yard Drain

• C.

Garage Catch Basin

• D.

Exterior Basin

A. Yard Catch Basin
Explanation
A yard catch basin is a receptacle used to catch surface water drained from cemented courts, driveways, and yards. It is designed to collect and redirect excess water, preventing it from pooling or causing damage to the surrounding area. This type of catch basin is specifically designed for use in yards, making it the most appropriate choice among the given options. A garage catch basin would be used specifically for catching water drained from a garage, while an exterior basin is a more general term that does not specify its purpose.

Rate this question:

• 25.

### What is the MAXIMUM number of fixture units that maybe connected to a 75mm DIAMETER house drain pipe under 4% SLOPE

• A.

18

• B.

21

• C.

25

• D.

34

B. 21
Explanation
The maximum number of fixture units that can be connected to a 75mm diameter house drain pipe under a 4% slope is 21. This is determined by the plumbing code, which specifies the maximum fixture unit load that can be connected to a certain diameter pipe. In this case, the code allows for a maximum of 21 fixture units to be connected to a 75mm diameter pipe under a 4% slope.

Rate this question:

• 26.

### What is the MAXIMUM number of fixture units that maybe connected to a 75mm DIAMETER house drain pipe under 2% SLOPE

• A.

18

• B.

21

• C.

25

• D.

34

A. 18
Explanation
The maximum number of fixture units that can be connected to a 75mm diameter house drain pipe under a 2% slope is 18. This means that the pipe can handle the drainage from up to 18 fixtures, such as sinks, toilets, or showers, without causing any issues or backups in the system.

Rate this question:

• 27.

### What is the MAXIMUM number of fixture units that maybe connected to a 125mm DIAMETER house drain pipe under 3% SLOPE

• A.

162

• B.

216

• C.

264

• D.

275

B. 216
Explanation
The maximum number of fixture units that can be connected to a 125mm diameter house drain pipe under a 3% slope is 216. This means that the pipe can handle the drainage from a total of 216 fixture units without any issues.

Rate this question:

• 28.

### What is the MAXIMUM number of fixture units that maybe connected to a 125mm DIAMETER house drain pipe under 4% SLOPE

• A.

162

• B.

216

• C.

264

• D.

275

C. 264
Explanation
The maximum number of fixture units that can be connected to a 125mm diameter house drain pipe under a 4% slope is 264.

Rate this question:

• 29.

### What is the SLOPE of a 100mm DIAMETER house drain pipe with 114 fixture units?

• A.

2%

• B.

3%

• C.

4%

• D.

5%

C. 4%
Explanation
The slope of a pipe refers to the gradient or angle at which the pipe is inclined. In this case, the question provides the diameter of the house drain pipe (100mm) and the number of fixture units (114). The correct answer of 4% suggests that the pipe should have a slope of 4% to effectively drain the fixtures. A 4% slope means that for every 100 units of horizontal distance, the pipe will have a vertical drop of 4 units. This slope is appropriate for ensuring proper drainage and preventing clogs or backups in the house drain pipe.

Rate this question:

• 30.

### What is the SLOPE of a 100mm DIAMETER house drain pipe with 100 fixture units?

• A.

2%

• B.

3%

• C.

4%

• D.

5%

C. 4%
Explanation
The slope of a pipe is the amount of vertical drop over a certain horizontal distance. In this case, the question is asking for the slope of a 100mm diameter house drain pipe with 100 fixture units. The correct answer is 4%. This means that for every 100 units of horizontal distance, the pipe will drop 4 units vertically. This slope is necessary to ensure proper drainage and prevent clogs or backups in the pipe system.

Rate this question:

• 31.

### What is the SLOPE of a 100mm DIAMETER house drain pipe with 85 fixture units?

• A.

2%

• B.

3%

• C.

4%

• D.

5%

B. 3%
Explanation
The slope of a drain pipe is typically expressed as a percentage, indicating the amount of vertical drop over a horizontal distance. In this case, the question states that the drain pipe has a diameter of 100mm and is serving 85 fixture units. The correct answer of 3% suggests that the pipe should have a slope of 3% to ensure proper drainage. This means that for every 100 units of horizontal distance, the pipe should have a vertical drop of 3 units.

Rate this question:

• 32.

### What is the SLOPE of a 125mm DIAMETER house drain pipe with 150 fixture units?

• A.

2%

• B.

3%

• C.

4%

• D.

5%

A. 2%
Explanation
The slope of a drain pipe is typically expressed as a percentage, indicating the amount of vertical drop over a certain horizontal distance. In this case, the correct answer is 2%. This means that for every 100 units of horizontal distance, the pipe will have a 2 unit drop in elevation. The slope is important to ensure proper drainage and prevent the buildup of debris or stagnant water in the pipe.

Rate this question:

• 33.

### What is the SLOPE of a 125mm DIAMETER house drain pipe with 203 fixture units?

• A.

2%

• B.

3%

• C.

4%

• D.

5%

B. 3%
Explanation
The slope of a drain pipe is determined by the amount of vertical drop over a horizontal distance. In this case, the question provides the diameter of the pipe (125mm) and the fixture units (203). The slope is typically expressed as a percentage, representing the vertical drop in relation to the horizontal distance. Without further information, it is not possible to calculate the exact slope. Therefore, the answer cannot be determined.

Rate this question:

• 34.

### What is the MAXIMUM number of fixture units that maybe connected to a 100mm DIAMETER house drain pipe under 3% SLOPE

• A.

84

• B.

90

• C.

96

• D.

114

C. 96
Explanation
The correct answer is 96. The maximum number of fixture units that can be connected to a 100mm diameter house drain pipe under a 3% slope is determined by the plumbing code regulations. These regulations specify the maximum flow rate and fixture unit values for different types of fixtures. By calculating the total fixture unit value for all the fixtures connected to the drain pipe, it is determined that a maximum of 96 fixture units can be connected to the pipe.

Rate this question:

• 35.

### What is the MAXIMUM number of fixture units that maybe connected to a 100mm DIAMETER house drain pipe under 2% SLOPE

• A.

81

• B.

84

• C.

90

• D.

96

B. 84
Explanation
The maximum number of fixture units that can be connected to a 100mm diameter house drain pipe under a 2% slope is 84. This means that the pipe can handle the drainage from up to 84 fixtures without any issues.

Rate this question:

• 36.

### It is that portion of the horizontal drainage system which stars from the outer surface of the building and terminate at the main sewer in the street or septic tank.

• A.

Soil Drain

• B.

House Sewer

• C.

House Drain Line

• D.

Waste Sewer

B. House Sewer
Explanation
The correct answer is House Sewer because it refers to the portion of the horizontal drainage system that starts from the outer surface of the building and terminates at the main sewer in the street or septic tank. This is the pipe that carries wastewater and sewage from the house to the main sewer line or septic system.

Rate this question:

• 37.

### It is a device installed in a house drain immediately inside the foundation wall of the building.

• A.

Soil Trap

• B.

Main Trap

• C.

House Trap

• D.

Waste Trap

C. House Trap
Explanation
A house trap is a device installed in a house drain immediately inside the foundation wall of the building. It is designed to prevent sewer gas from entering the building by creating a water seal. The water in the trap acts as a barrier, preventing the gases from passing through. This helps to maintain a healthy and odor-free environment inside the house. House traps are typically required by building codes and are an essential component of a plumbing system in residential buildings.

Rate this question:

• 38.

### Is a device used in a drainage system to prevent the reversal of flow

• A.

Suppression Valve

• B.

Return Valve

• C.

Backflow Valve

• D.

Pressure Valve

C. Backflow Valve
Explanation
A backflow valve is a device used in a drainage system to prevent the reversal of flow. It allows the flow of water or other fluids in only one direction, preventing any backflow or back-contamination. This is important in preventing the mixing of clean water with potentially contaminated water, which could pose health risks. The backflow valve ensures that water flows in the desired direction, protecting the integrity and safety of the drainage system.

Rate this question:

• 39.

### The most preferred type of backflow valve because it has the characteristics of non-interferences in the movement of air inside the drainage system.

• A.

Interference Valve

• B.

Unbalanced Valve

• C.

Non-interference Valve

• D.

Balance Valve

D. Balance Valve
Explanation
A balance valve is the most preferred type of backflow valve because it has the characteristics of non-interferences in the movement of air inside the drainage system. This means that it allows for smooth and uninterrupted flow of air, preventing any blockages or restrictions in the system. This ensures efficient and effective drainage, making it the ideal choice for backflow prevention.

Rate this question:

• 40.

### Not a preferred type of backflow valve, because of its poor performance.

• A.

Interference Valve

• B.

Unbalanced Valve

• C.

Non-interference Valve

• D.

Balance Valve

B. Unbalanced Valve
Explanation
The unbalanced valve is not a preferred type of backflow valve because it has poor performance. This suggests that the unbalanced valve does not effectively prevent backflow, which is the undesired reversal of fluid flow in a piping system. Backflow can lead to contamination of water sources or damage to equipment. Therefore, it is important to use a backflow valve that has good performance and effectively prevents backflow.

Rate this question:

• 41.

### It is not preferred to discharge into the septic tank.

• A.

Combined Drain

• B.

Storm Drain

• C.

Industrial Drain

• D.

Sanitary Drain

B. Storm Drain
Explanation
Discharging into the septic tank is not preferred because septic tanks are designed to handle wastewater from toilets, showers, and sinks. Storm drains, on the other hand, are specifically designed to collect and carry away rainwater and surface runoff. Discharging into a storm drain helps prevent flooding by quickly removing excess water from streets and urban areas. It also helps protect water bodies from pollution, as stormwater often carries pollutants such as oil, chemicals, and debris. Therefore, it is more appropriate to discharge into a storm drain rather than a septic tank.

Rate this question:

• 42.

### It is adopted when the street drainage is higher in elevation than the basement floor of the building.

• A.

• B.

Outside Storm Drain

• C.

Splash Pan

• D.

Inside Storm Drain

Explanation
The correct answer is "Overhead Storm Drain". This type of storm drain is adopted when the street drainage is higher in elevation than the basement floor of the building. It is designed to collect and divert rainwater or stormwater from the street or surrounding areas above ground level, preventing it from entering the basement or lower levels of the building. This type of storm drain is typically installed overhead, above the basement floor, to ensure proper drainage and prevent flooding.

Rate this question:

• 43.

### It collects water coming from the downspout leading the accumulated water away from the house at a relatively low rate of flow.

• A.

• B.

• C.

Splash Pan

• D.

Inside Storm Drain

C. Splash Pan
Explanation
A splash pan is a device that collects water from a downspout and directs it away from the house at a slow rate. This helps to prevent water accumulation near the foundation of the house and potential damage to the structure. The other options, overhead storm drain, roof leader, and inside storm drain, do not accurately describe a device that collects water from a downspout and directs it away from the house.

Rate this question:

• 44.

### It is sometimes located under the basement floor or within the walls of the buildings.

• A.

• B.

Outside Storm Drain

• C.

Splash Pan

• D.

Inside Storm Drain

D. Inside Storm Drain
Explanation
An inside storm drain is sometimes located under the basement floor or within the walls of buildings. This type of storm drain is designed to collect and channel rainwater or other runoff from inside the building, preventing flooding and water damage. It is typically connected to the outside storm drain system, allowing the water to be safely directed away from the building.

Rate this question:

• 45.

### It is installed outside the foundation wall of the building.

• A.

• B.

Outside Storm Drain

• C.

Splash Pan

• D.

Inside Storm Drain

B. Outside Storm Drain
Explanation
An outside storm drain is installed outside the foundation wall of a building. This type of storm drain is designed to collect and divert rainwater away from the building's foundation, preventing water damage and flooding. By being located outside the foundation wall, it can efficiently capture and redirect water from the surrounding area, keeping the building and its surroundings dry and safe.

Rate this question:

• 46.

### Storm Drain is installed provided a slope of NOT MORE THAN ______ PER METER RUN.

• A.

0.5 %

• B.

1 %

• C.

1.5 %

• D.

2 %

D. 2 %
Explanation
Storm Drain is installed provided a slope of NOT MORE THAN 2% PER METER RUN. This means that the maximum slope allowed for the storm drain installation is 2% per meter. A slope of 2% means that for every meter of horizontal distance, the drain can drop 2 centimeters in elevation. This slope is necessary to ensure proper drainage and prevent water from pooling or stagnating in the drain. A steeper slope could cause water to flow too quickly, potentially causing erosion or damage to the drain system.

Rate this question:

• 47.

### Appropriate FITTINGS for a Storm Drain.

• A.

• B.

• C.

• D.

A. Wye, 1/8 bend, Long Radius
Explanation
The appropriate fittings for a storm drain are a Wye and a 1/8 bend with a long radius. A Wye fitting is used to create a branch connection in a pipe system, allowing water to flow in two different directions. The 1/8 bend with a long radius is used to change the direction of the pipe gradually, minimizing the risk of clogs and blockages. This combination of fittings ensures efficient water flow and reduces the likelihood of drainage issues in a storm drain system.

Rate this question:

• 48.

### It is popularly known as water conductor or downspout.

• A.

• B.

• C.

Splash Pan

• D.

Inside Storm Drain

Explanation
A roof leader is a term used to describe a water conductor or downspout that is commonly found on roofs. It is responsible for directing rainwater or melted snow from the roof to the ground, preventing water damage to the building's structure. This term is widely recognized and used in the construction industry.

Rate this question:

• 49.

### The House Drain should be sized correctly to have a flow of about ___ of the pipe diameter.

• A.

45%

• B.

50%

• C.

55%

• D.

60%

B. 50%
Explanation
The House Drain should be sized correctly to have a flow of about 50% of the pipe diameter. This means that the diameter of the drain should be approximately twice the diameter of the pipe it is connected to. This allows for efficient flow of wastewater and prevents clogging or backflow issues. A drain that is too small may cause blockages and slow drainage, while a drain that is too large may not effectively carry away the wastewater. A 50% flow rate provides a good balance between capacity and efficiency.

Rate this question:

• 50.

### It is also known as the COLLECTION LINE of a Plumbing System

• A.

House Drain

• B.

Soil Drain

• C.

Waste Drain

• D.

Main Drain

A. House Drain
Explanation
The correct answer is House Drain because it is also known as the collection line of a plumbing system. This suggests that the house drain is responsible for collecting and carrying waste water from various plumbing fixtures within a house, such as sinks, toilets, and showers, to the main sewer line or septic tank.

Rate this question:

Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

• Current Version
• Mar 22, 2023
Quiz Edited by
ProProfs Editorial Team
• Sep 11, 2015
Quiz Created by
Saklay_bamboo

Related Topics