The Ultimate Basic Plumbing! Trivia Quiz

A soil pipe is a pipe that carries the discharge of water closets or fixtures with similar functions, either on its own or combined with the discharges from other fixtures. It is specifically designed to handle the solid waste and sewage from these fixtures, making it the correct answer in this case.

The minimum trap seal is 2". This refers to the amount of water that remains in a plumbing trap to prevent sewer gases from entering the building. A trap seal is necessary to create a barrier between the plumbing system and the living or working space. A 2" trap seal is the minimum requirement to ensure proper functioning and prevent the escape of unpleasant odors.

A 6" CHB (Concrete Hollow Blocks) wall is best suited if a soil pipe will run through it. This is because CHB walls are strong and durable, making them capable of supporting the weight and pressure of a soil pipe. The hollow blocks also provide space for the pipe to pass through without compromising the integrity of the wall. Drywall, shear walls, and retaining walls may not be as suitable for this purpose due to their different construction materials and design purposes.

The principle governing the size of pipes in designing plumbing systems is that the bigger the pipes diameter, the lesser the pressure; the smaller the pipes diameter, the greater the pressure. This means that larger diameter pipes allow for a higher flow rate but at a lower pressure, while smaller diameter pipes result in a lower flow rate but at a higher pressure. This principle is important in determining the appropriate pipe size to ensure efficient water distribution and pressure regulation in plumbing systems.

PVC (Polyvinyl chloride) is not suited to be exposed to ultraviolet rays because it is not UV resistant. When PVC is exposed to sunlight or other sources of UV radiation, it can degrade and become brittle over time. This can lead to cracks, leaks, and other structural issues in the pipe. On the other hand, PB (Polybutylene), iron, and GI (Galvanized Iron) pipes are not affected by UV rays and can be used in outdoor applications without any issues.

The best advice in this situation would be to simply ask to relocate the soil pipe. This is because the architect has noticed that the pipe will cross a beam, which could potentially cause damage or structural issues. By asking to relocate the pipe, the architect can ensure that the integrity of the beam and overall structure is not compromised.

Building sewer can be discharged directly to the sewer system because it is designed to carry wastewater from a building to the public sewer system. It is specifically built to handle the discharge of domestic wastewater, including water from toilets, sinks, showers, and laundry. Unlike stormwater, which contains pollutants and contaminants from rainwater runoff, building sewer is meant to transport only wastewater that has been treated or is suitable for treatment in the public sewer system. Therefore, building sewer is an acceptable discharge to the sewer system.

The maximum depth of a septic tank is typically 1.80 m. This depth allows for adequate storage and settling of solid waste, as well as proper separation of liquids. It is important to have a sufficient depth to ensure proper functioning of the septic tank system and to prevent any overflow or leakage.

According to NBC (National Building Code), pipe support should be placed every 3 meters. This means that at every 3-meter interval, there should be a support system in place to hold and secure the pipes. This is important to ensure the stability and integrity of the pipes, preventing any potential damage or failure due to excessive weight or stress. Proper pipe support is crucial for the safe and efficient functioning of plumbing systems.

The correct answer is X11.4 because a tee-shaped pipe fitting is specifically designed for making a three-way joint. The tee fitting has one inlet and two outlets, allowing for the connection of three pipes at a right angle. This type of fitting is commonly used in plumbing and piping systems to divert or combine flow in multiple directions.

You can differentiate between a soil and waste pipe when laid side by side by looking at their diameter. The diameter of a soil pipe is typically larger than that of a waste pipe. Soil pipes are responsible for carrying human waste and are therefore larger in diameter to accommodate the flow. On the other hand, waste pipes are used for carrying non-human waste and are generally smaller in diameter. By comparing the sizes of the pipes, you can determine whether they are soil or waste pipes.

PPRC (Polypropylene Random Copolymer) is a type of plastic pipe used for plumbing and water supply systems. Fusion welding is the correct method to connect PPRC pipes. Fusion welding involves heating the ends of the pipes and then pressing them together to create a strong and leak-proof joint. This method ensures a secure and durable connection between PPRC pipes, making it the most suitable option for joining them. Mechanical fasteners and couplings may not provide the same level of strength and reliability as fusion welding. Solvent is not used in the connection of PPRC pipes.

It is not possible to embed a 4" diameter pipe in a 150 wall because the diameter of the pipe is larger than the thickness of the wall.

Drywall should not be used for a pipe chase because it is not a suitable material for enclosing or protecting pipes. Drywall is primarily used as a surface material for interior walls and ceilings, providing a smooth and finished appearance. It is not designed to withstand the pressure, moisture, and potential damage that can occur in a pipe chase. Instead, materials such as metal or plastic pipes or conduits should be used to enclose and protect pipes in a chase.

Based on the figure above, option b is a 1/8 bend fitting. This is because it resembles a curved pipe with a 45-degree angle, which is characteristic of a 1/8 bend fitting. Option a is a straight pipe, option d is a 90-degree elbow fitting, and option c is a T-shaped fitting, so they are not 1/8 bend fittings.

The correct answer is that the pressure inside the pipe equates to the pressure outside the pipe causing the water to stop at that point where it appears. This is because when water flows up a vertical pipe, it experiences a decrease in pressure due to the decrease in height. However, as the water rises, the pressure outside the pipe also increases, eventually reaching a point where the pressure inside and outside the pipe are equal. At this point, the forces of gravity and friction are balanced by the pressure, causing the water to stop rising.

Based on the figure, option a is a 1/4 bend fitting. This is because option a shows a curved pipe that bends at a 90-degree angle, forming a quarter of a complete circle. The other options do not show a similar bend or curve, making them incorrect choices for a 1/4 bend fitting.

A lavatory faucet is a type of faucet that is commonly used in bathrooms. It is fitted with a nozzle that curves downward, which helps to prevent water from splashing out of the sink. This design makes it suitable for use as a draw-off trap, as it allows water to be easily directed into a container or drain without causing any mess or wastage.

Large trees can have extensive root systems that can potentially damage water distribution pipes. Therefore, locating the water distribution pipe farthest from large trees would minimize the risk of damage and ensure the longevity and efficiency of the pipe system.

Trap seal is the correct answer because it refers to a plumbing device that prevents sewer gases from entering a building by maintaining a water barrier in the plumbing trap. It does not intercept greases and solids like grease interceptors, grease recovery devices, and grease converters do.

The correct answer is 2 diameter because the trap and waste branch for a foot bath should be at least twice the diameter of the drain pipe to ensure proper drainage and prevent clogging.

A back vent is an individual vent for a plumbing fixture located downstream of a trap. It is designed to provide ventilation to the fixture, allowing for proper drainage and preventing the trap from being siphoned. This type of vent is typically used when it is not possible to install a traditional vent pipe or vent through the roof.

When designing a drainage system, it is not a rule of thumb for the pipes to be underneath the driveway. This is because having the pipes underneath the driveway can make them difficult to access and maintain in case of any issues. It is generally recommended to avoid placing drainage pipes under areas with heavy traffic or load-bearing structures like driveways to ensure easy accessibility and prevent any potential damage to the pipes.

A cross fitting with a slight curve in each of the 90-degree transitions is designed to channel the flow from the branch pipes towards the main pipe. This curved design helps to reduce turbulence and pressure drop in the flow, ensuring smooth and efficient flow through the fitting. The other options do not mention this specific curved design, making X11.8 the most suitable choice.

The least ideal place to put a downspout would be in between window openings. This is because the downspout would obstruct the view from the window and potentially cause water to splash onto the window during heavy rainfall. Placing the downspout at the corner of walls, inside columns, or wall hung would be more suitable locations that do not interfere with the functionality of the window.

The color of pipes for steam is white. This is because white pipes are used to indicate that they are carrying steam. The color coding of pipes is an important safety measure in industries to ensure that workers can easily identify the contents of the pipes and take appropriate precautions. White is specifically used for steam pipes to distinguish them from other types of pipes and prevent any confusion or accidents.

Storm sewers are usually placed near the curb. This is because stormwater runoff, which includes rainwater and melted snow, flows along the curb and into the storm sewer system. Placing the storm sewers near the curb allows for efficient collection and drainage of the stormwater, preventing flooding and water damage on the roads and sidewalks.

The standard water consumption in a 2 story residence is typically around 30-40 gallons per person per day. This range takes into account the average water usage for daily activities such as drinking, cooking, cleaning, and bathing. It is important to note that individual water usage may vary depending on factors such as lifestyle, habits, and water conservation practices.

A booster pump is used to supply higher levels when there is low pressure from the water main. It is specifically designed to increase the pressure of water in a system, allowing it to be distributed to higher levels or areas that require greater pressure. Unlike other types of pumps mentioned, such as a pneumatic pump, sump pump, or jet pump, a booster pump is specifically designed for this purpose, making it the correct choice in this scenario.

A snap cutter is the most efficient tool for cutting cast iron pipe because it is specifically designed for this purpose. It has a chain with cutting wheels that can easily cut through the tough material of the cast iron pipe. This tool provides a clean and precise cut without much effort, making it the preferred choice for professionals working with cast iron pipes.

The term "battery" is used to describe pumps that are interconnected with each other. This term is commonly used in situations where multiple pumps are connected in a parallel arrangement to work together and provide a higher flow rate or increased pressure. The pumps in a battery arrangement work in coordination to achieve the desired pumping outcome.

Plumbing codes and standards typically specify that the minimum trap size for a bidet should be 1-1/2 inches in diameter to ensure proper drainage and to prevent clogs. This size is adequate for the volume of water typically used by a bidet. It is important to follow local plumbing codes and guidelines when installing plumbing fixtures.

The allowable slope of a sanitary sewer is 1/4 of 1 ft. This means that for every 1 ft of horizontal distance, the sewer can have a vertical drop of 1/4 ft. This slope is necessary to ensure proper flow and prevent blockages in the sewer system. A steeper slope would cause the sewage to flow too quickly, potentially causing damage or blockages, while a shallower slope would result in slower flow and increased risk of clogs. Therefore, a slope of 1/4 of 1 ft is the ideal balance for efficient and effective sewage flow.

Level 3 types of water service refers to an artesian well. This means that the water service is provided by a well that taps into a confined aquifer, where water is under pressure and rises to the surface without the need for pumping. This type of water service is typically more reliable and can provide a higher volume of water compared to other options such as individual shallow well hand pump installations, public faucets, or individual house pipes connected to a meter.

An aerobic treatment system is a viable alternative to the conventional septic tank. Unlike septic tanks that rely on anaerobic bacteria to break down waste, aerobic treatment systems use oxygen to facilitate the decomposition process. This results in more efficient and effective treatment of wastewater, producing cleaner effluent. Additionally, aerobic treatment systems have a smaller footprint compared to septic tanks, making them suitable for areas with limited space. They also require less maintenance and have a longer lifespan. Overall, aerobic treatment systems offer a more environmentally-friendly and sustainable solution for wastewater treatment.

The pump that is specifically designed to eject sewage or liquid waste is called a "sewage ejector pump" or a "sewage pump." This type of pump is typically used in residential or commercial buildings where the sewage needs to be pumped from a lower level to a higher level, such as when the sewage system is located below the main sewer line. Sewage ejector pumps are powerful and durable, capable of handling solid waste and wastewater. They are commonly installed in basements or below-grade areas where gravity cannot effectively drain the waste. These pumps help to prevent flooding and ensure that waste is properly transported to the sewer system or a septic tank. While "central sewage booster" may refer to a larger system or a group of pumps that work together to boost the flow of sewage in a municipal or industrial setting, the specific pump used to eject sewage or liquid waste is called a sewage ejector pump or sewage pump.

A corp stop is a control valve that is used to shut off the water supply to a building in case of an emergency. It is installed at a water service pipe and can be operated by inserting a long key through a curb box.

The riser is the line in a single diagram that runs from the fuses to the home run. It is responsible for carrying the electrical current from the fuses to the main power source in the home. The riser is an essential component of the electrical system as it ensures that the electrical power is distributed properly throughout the home.

Disinfection is the correct answer because it refers to the process of using a chemical agent, such as hydrochloride, to kill or inactivate pathogenic bacteria in sewage. This process helps to ensure that the treated sewage is safe for disposal or reuse. Aeration is the process of adding oxygen to the sewage to promote the growth of beneficial bacteria that break down organic matter. Chlorination involves the use of chlorine to kill bacteria and other microorganisms. Hydro-chlorine filtration is not a recognized term or process in sewage treatment.

The need to resize water supply pipes in high rise buildings is to use up the difference in pressure from the service to the supply fixtures. This means that the pipes are adjusted in size to ensure that the water pressure is distributed evenly throughout the building, allowing for proper functioning of the fixtures. By resizing the pipes, the pressure can be regulated and maintained at an appropriate level for each fixture.

The minimum height of the siamese connection from the ground line is 38mm.

Water well yield refers to the amount of water that a well can produce over a given period of time. The size of the water pipe is determined based on the well yield because it needs to be able to handle the maximum amount of water that the well can produce. If the water pipe is too small, it may not be able to deliver the water efficiently, leading to low water pressure or even damage to the pipe. Therefore, the size of the water pipe is directly influenced by the water well yield.

A turnbuckle is a type of coupling or joining device that has internal screw threads or nuts with opposite screws at the end. By turning the internal screws, it is possible to connect two metal rods and regulate the length and tension of these rods.

Polyethylene pipe should not be buried underground because it is not resistant to UV rays and can degrade over time when exposed to sunlight. This can lead to cracks, leaks, and eventual failure of the pipe. Therefore, it is recommended to use other types of pipes such as BI (black iron) or GI (galvanized iron) pipes for underground burial.

The correct answer is 4" closet bend. The figure shows various plumbing fixtures labeled with numbers. The label "8" corresponds to a 4" closet bend, which is a curved pipe fitting used to connect the toilet to the drain pipe. This fitting allows for a smooth flow of waste from the toilet into the drainage system.

A combined drain is a type of drain that connects multiple fixtures to a solid or waste stack. This means that it can collect wastewater from different sources, such as sinks, toilets, and showers, and direct it to a main drainage system. The term "combined" refers to the fact that it combines the drainage from multiple fixtures into one drain line. This type of drain is commonly used in residential and commercial buildings to efficiently manage wastewater disposal.

The reason why cracks and leaks cannot be detected is not a reason for why soil stacks are not allowed in columns. Soil stacks are not allowed in columns because pipes will interfere with reinforcing bars, the size of the columns will be larger, and the gas emitted will deteriorate concrete. However, cracks and leaks not being detectable is not mentioned as a reason for not allowing soil stacks in columns.

The noisiest is washdown. The answer is correct. Try to see the photo again.

The correct answer is bichlor. This is because trichlor, dichlor, and trichloro-S-triazinetrione are all common ingredients used in water disinfectants, while bichlor is not.

The correct answer is 1 per 30. This means that for every 30 males in the population of both elementary and secondary school, there should be at least one urinal fixture available. This ensures that there are enough facilities to accommodate the male population and prevent long waiting times or overcrowding in the restrooms.

Copper pipes are not classified as galvanized iron or PVC pipes because these materials are different from copper. Copper pipes are also not classified as stainless steel (s/s) pipes because stainless steel is a separate material. The correct answer is ceramic, which means that copper pipes are classified as ceramic pipes.

A structural compression gasket is used to connect two hub less cast iron pipes. This type of gasket provides a secure and tight seal between the pipes, ensuring that there are no leaks or disruptions in the flow of fluid. It is designed to withstand the pressure and stress placed on the pipes, making it an ideal choice for connecting hub less cast iron pipes. Couplings and elbows may also be used in pipe connections, but in this specific scenario, a structural compression gasket is the correct choice.

To size sewage pits, we need to consider the volume of solid waste only. This is because sewage pits are designed to hold and treat solid waste, such as feces, toilet paper, and other non-liquid materials. The volume of liquid waste is not relevant in this context, as it typically flows through the pit and is treated separately. Similarly, the volume of stormwater is not considered when sizing sewage pits, as stormwater is typically managed through separate drainage systems. Therefore, the correct answer is to consider the volume of solid waste only when sizing sewage pits.

The minimum size of a swimming pool drain is 2" diameter. This size is necessary to ensure proper water flow and prevent any potential hazards or accidents. A smaller drain size may lead to inadequate drainage and increase the risk of entrapment or suction entanglement. Therefore, a 2" diameter drain is the appropriate minimum size for a swimming pool to maintain safety and functionality.

The correct answer is "flow limiting feature." This is because a flow limiting feature actually helps to conserve water by restricting the flow rate of water through a plumbing fixture. On the other hand, a lavatory with pop-up, a 1.5 gallon flush water closet, and a waterless urinal all have water-saving features.

The color of communication line piping is gray.

Based on the figure shown, the type of closet at letter "A" can be identified as a siphon-jet closet.

The color coding for piping under the refrigerating division is black. This color is typically used to indicate that the pipe contains refrigerant. By using black color coding, it helps to easily identify and differentiate the refrigerant pipes and fittings from other pipes in the system. This is important for maintenance and troubleshooting purposes, as well as for ensuring the safe handling and operation of the refrigeration system.

The best size of pipe connected to 5 sinks would be 4". This is because a larger pipe diameter allows for better water flow and reduces the chances of clogging or blockages. With 5 sinks, there would be a higher demand for water flow, and a 4" pipe would be able to handle this demand more effectively compared to the smaller pipe sizes listed.

The minimum slope of a building drain is 1/16 in./ft. This means that for every 1 foot of horizontal distance, the drain should have a downward slope of 1/16 inch. This slope is necessary to ensure proper drainage and prevent the accumulation of waste and water in the drain. A steeper slope would cause the water to flow too quickly, potentially causing damage to the drain, while a shallower slope would not provide enough force to effectively move the waste and water through the drain.

The minimum clearance from the floor of pipes for AC units when crossing a hallway or corridor is 2.3 m. This clearance is necessary to ensure that there is enough space for people to walk under the pipes without any risk of hitting their heads or interfering with the AC unit's functionality. A clearance of 2.3 m allows for comfortable passage while also maintaining the proper distance between the pipes and the floor.

The maximum distance for a clean-out, which refers to an access point in a plumbing system used for clearing blockages and for inspection, should typically be 10 meters center to center. This guideline ensures that any section of the plumbing can be accessed for maintenance or repair without excessive difficulty, allowing for efficient cleaning and inspection intervals along the pipeline. This distance strikes a balance between having enough access points for maintenance without unnecessarily complicating the plumbing infrastructure.

A double bend, also known as an S-trap, is a type of pipe fitting that has the shape of the letter "S". It is commonly used in plumbing to create a trap in the drainage system to prevent sewer gases from entering the building. The S-trap configuration can help maintain a water seal in the trap, which is essential for proper drainage and ventilation in plumbing systems.

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An air chamber is a device designed to prevent water hammer in plumbing systems. Water hammer occurs when water flowing through a pipe is suddenly forced to stop or change direction, creating a shock wave that can cause noise and potentially damage the plumbing. An air chamber works by providing a cushion of air within the plumbing system that absorbs the shock wave created by the sudden stopping of water flow, thereby preventing water hammer. This makes the air chamber an effective solution for mitigating the impacts of water hammer in plumbing systems.