Plumbing And Sanitary Quiz Set B

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1. A plumbing fixture used for washing the middle private part of the body, especially the genitals.

Explanation

A bidet is a plumbing fixture specifically designed for washing the middle private part of the body, particularly the genitals. It is commonly used for personal hygiene purposes and is often found in bathrooms. Unlike traditional toilets or showers, bidets provide a targeted and gentle stream of water for cleaning, offering a more thorough and hygienic cleansing experience.

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About This Quiz
Plumbing And Sanitary Quiz Set B - Quiz

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... see moreyour engineering studies
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2. A house drain that receives discharges from industrial equipment that contain some objectionable acid wastes.

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.

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

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.

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4. A room equipped with a only 1 WC and Lavatory

Explanation

A half bathroom typically refers to a small room that contains only a toilet and a sink, without a shower or bathtub. In this case, the room is equipped with only one WC (toilet) and a lavatory (sink), which aligns with the definition of a half bathroom. It does not include a shower or bathtub, making it different from a full bathroom or a shower room. Therefore, the correct answer is "Half Bathroom".

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

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.

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6. An act to regulate the trade of Master Plumber in the Philippines

Explanation

RA 1378 is the correct answer because it is the act that specifically regulates the trade of Master Plumbers in the Philippines. The other options, RA 1364, RA 386, and PD 1067, do not pertain to the trade of Master Plumbers and therefore are not the correct answer.

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

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.

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

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.

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

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.

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

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.

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

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.

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12. A part of the vent line, which connects directly with an individual trap underneath or behind the fixture and extends to the branch or main vent pipe at any point higher than fixture or fixture traps it serves.

Explanation

The back-vent pipe is a part of the vent line that connects directly with an individual trap underneath or behind a fixture. It extends to the branch or main vent pipe at a point higher than the fixture or fixture traps it serves. This configuration helps to prevent backflow and maintain proper pressure in the plumbing system.

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13. A group of fixtures consisting 1WC, 1 or 2 Lavatory, Bathtub Bath/Shower, Shower, Urinal or Bidet, Emergency Floor Drain.

Explanation

The term "Bathroom Group" is the most appropriate answer because it accurately describes a collection of fixtures that are commonly found in a bathroom. The group includes a WC, Lavatory, Bathtub Bath/Shower, Shower, Urinal or Bidet, and an Emergency Floor Drain. This term encompasses all the necessary fixtures for a complete bathroom setup, making it the correct choice.

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14. 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.

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.

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15. The unobstructed vertical distance through the free atmosphere between the outlet of water pipe and the flood level rim of the receptacle into which it is discharging.

Explanation

An air gap refers to the unobstructed vertical distance between the outlet of a water pipe and the flood level rim of the receptacle it is discharging into. It is a physical separation that prevents backflow of contaminated water into the potable water supply. The air gap acts as a barrier, ensuring that there is no direct connection between the two systems, thus protecting the water quality. This is an important safety measure in plumbing systems to prevent the risk of contamination.

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

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.

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17. A valve opened and closed by the fall and rise respectively, of an attached ball floating on the surface of the liquid.

Explanation

A ball valve is a type of valve that is opened and closed by the movement of a ball floating on the surface of the liquid. When the ball rises, it opens the valve, allowing the liquid to flow through. When the ball falls, it closes the valve, stopping the flow of liquid. This design allows for quick and efficient control of the flow, making ball valves commonly used in various industries for their reliability and ease of operation.

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18. A flange that closes the end of a pipe. There is no opening for the passage of air or liquid.

Explanation

A blind flange is a type of flange that is used to close the end of a pipe. It does not have any opening or passage for the flow of air or liquid. It is commonly used in piping systems where the end of a pipe needs to be sealed off to prevent leakage or to block the flow of substances. The blind flange is usually bolted onto the end of the pipe, providing a secure and tight seal.

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

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.

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

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.

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21. The flowing back of used, contaminated or polluted water from plumbing fixture or vessel into a water supply pipe due to negative pressure in such pipe.

Explanation

Back-siphonage refers to the process of contaminated water being drawn back into the water supply pipe due to negative pressure. This can occur when there is a sudden drop in water pressure, such as during a water main break or when a large amount of water is being used in a nearby area. Back-siphonage can contaminate the water supply with harmful substances, making it unsafe for consumption. To prevent back-siphonage, backflow prevention devices are installed in plumbing systems to ensure that water flows in one direction only.

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22. It occurs due to an increased reverse pressure above the supply pressure.

Explanation

Back Pressure Backflow occurs when there is an increased reverse pressure above the supply pressure. This can happen when there is a decrease in supply pressure or an increase in downstream pressure, causing the water or fluid to flow in the opposite direction. This can lead to contamination of the water supply, as it allows non-potable water or substances to enter the clean water system.

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

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.

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24. Sanitary Sewage is also known as

Explanation

Sanitary sewage refers to the wastewater generated from households, commercial buildings, and institutions. It includes water from toilets, sinks, showers, and other domestic sources. This wastewater contains a variety of contaminants such as human waste, soaps, detergents, and food particles. Therefore, the term "Domestic Sewage" accurately describes sanitary sewage as it represents the wastewater produced within residential and domestic settings.

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

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.

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

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.

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27. 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.

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.

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

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.

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29. Appropriate FITTINGS for a Storm Drain.

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.

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

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.

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31. 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.

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.

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

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.

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33. A device or means to prevent flow of liquid from returning to source of supply. Also called Vacuum Breaker.

Explanation

A backflow preventer is a device or means that is used to prevent the flow of liquid from returning to the source of supply. It is also known as a vacuum breaker. This device is important in preventing backflow, which can occur when there is a sudden drop in pressure in the water supply system, causing the water to flow in the opposite direction. By installing a backflow preventer, it ensures that contaminated water or substances do not flow back into the clean water supply, thus protecting the quality and safety of the water.

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34. Fixture UNIT VALUE of a Shower Bath

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.

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35. Fixture UNIT VALUE of a Bathtub

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.

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36. A piping arrangement in which a drain from a fixture, appliance or device discharge indirectly into a fixture, receptacle, or interceptor at a point below the flood level rim of the receptacle so installed as to prevent backflow or siphonage.

Explanation

An air break is a piping arrangement where a drain from a fixture, appliance, or device discharges indirectly into a fixture, receptacle, or interceptor below the flood level rim. This arrangement is designed to prevent backflow or siphonage. It ensures that there is a physical gap or space between the drain and the receiving fixture, allowing air to enter and break the siphoning action. This helps to maintain the integrity of the plumbing system and prevent contamination of the water supply.

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37. 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.

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.

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38. Sanitation Code of the Philippines

Explanation

PD 856 is the correct answer because it is the Sanitation Code of the Philippines. PD 1378, PD 865, and PD 1067 are not related to sanitation codes in the Philippines.

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39. A sink designed primarily to receive wastes from bedpans and having a flush rim, an integral trap with a visible trap seal, and the same flushing and cleansing characteristics as a water closet.

Explanation

A clinic sink is designed specifically to receive wastes from bedpans and has features such as a flush rim, an integral trap with a visible trap seal, and the same flushing and cleansing characteristics as a water closet. This type of sink is commonly found in medical clinics or hospitals where bedpans are used for waste disposal. It provides a sanitary and efficient solution for disposing of bedpan waste.

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40. Fixture UNIT VALUE of a Laundry Tub

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.

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41. An act to regulate the practice of Sanitary Engineering in the Philippines

Explanation

RA 1364 is the correct answer because it is the specific law that regulates the practice of Sanitary Engineering in the Philippines. The other options, RA 1378, RA 386, and PD 1067, do not pertain to the regulation of Sanitary Engineering. Therefore, RA 1364 is the most appropriate choice.

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42. Civil Code of the Philippines

Explanation

The correct answer is RA 386 because it is the Civil Code of the Philippines. RA 386 is a law that governs civil rights and obligations in the country. It covers various aspects of civil law such as property, family, succession, contracts, and obligations. This law provides a comprehensive framework for legal matters in the Philippines and is considered a fundamental piece of legislation in the country's legal system.

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43. Provincial Water Utilities Act

Explanation

PD 198 stands for Presidential Decree No. 198. It is likely that this decree is related to the Provincial Water Utilities Act, as mentioned in the question. However, without further context or information, it is difficult to provide a more specific explanation for why PD 198 is the correct answer.

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

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.

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45. Fixture UNIT VALUE of a Public or Hotel Sink

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.

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46. Fixture UNIT VALUE of a Water Closet

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.

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

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.

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48. Water Code of the Philippines

Explanation

PD 1067 is the correct answer because it refers to the Philippine law known as the Water Code of the Philippines. This law was enacted to govern the ownership, appropriation, utilization, development, conservation, and protection of water resources in the country. It establishes the rights and responsibilities of individuals and entities in relation to water resources, and also provides for the regulation and management of water-related activities. Therefore, PD 1067 is the most relevant law among the options provided in relation to the Water Code of the Philippines.

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49. Fixture UNIT VALUE of a Kitchen Sink

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.

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50. Environment Code of the Philippines

Explanation

PD 1152 is the correct answer because it is the Philippine law that specifically focuses on environmental protection and management. It is also known as the Philippine Environmental Code, which provides guidelines and regulations for the conservation and preservation of the environment. This law covers various aspects such as land, water, air, and noise pollution, waste management, and environmental impact assessments. It also establishes the Environmental Management Bureau (EMB) as the primary government agency responsible for implementing and enforcing environmental laws and policies in the country.

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51. A condition or any arrangement whereby reverse flow can occur.

Explanation

A backflow connection refers to a condition or arrangement in a plumbing system that allows for the reverse flow of water or other fluids. This can happen when there is a drop in pressure in the system, causing the water to flow in the opposite direction. This can be a potential issue as it can lead to contamination of the water supply, as well as damage to the plumbing system. Therefore, it is important to have proper backflow prevention measures in place, such as backflow preventers, to prevent the occurrence of backflow.

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

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.

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53. A loop of pipe rising approximately 35 feet, at its top most point above the highest fixture it supplies.

Explanation

A barometric loop is a loop of pipe that rises approximately 35 feet above the highest fixture it supplies. This loop is used to prevent siphoning and backflow in a plumbing system. It creates a barrier of air that prevents water from flowing back into the system and causing contamination. The height of the loop ensures that the pressure difference between the loop and the fixtures is sufficient to maintain the air barrier.

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

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.

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55. A room equipped with a shower stall or bathtub.

Explanation

The correct answer is "Bathroom" because it is a room equipped with a shower stall or bathtub. The other options, such as "Shower room" and "Half Bathroom," may also have a shower or bathtub, but "Bathroom" is a more general term that encompasses both options.

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

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.

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57. The date when the Sanitary Engineering Law  and Plumbing Law are approved.

Explanation

The correct answer is June 18, 1955. This date represents the approval of both the Sanitary Engineering Law and Plumbing Law. It is likely that these laws were enacted to establish regulations and standards for sanitary engineering and plumbing practices.

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58. A type of pipe connection in which a ball-shaped end is held in a cuplike shell and allows movement in any direction.

Explanation

A ball joint is a type of pipe connection that consists of a ball-shaped end that is held in a cuplike shell. This design allows for movement in any direction, making it versatile and flexible. It is commonly used in mechanical and automotive applications where a wide range of motion is required.

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

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.

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60. Fixture UNIT VALUE of a Floor Drain

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.

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

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.

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62. Fixture UNIT VALUE for every 15 square foot of roof drain

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.

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

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.

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64. Fixture UNIT VALUE of a Combination Fixture

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.

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

Explanation

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

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66. The date when the Philippine Environment Code is signed.

Explanation

The correct answer is June 6, 1977. This date refers to the signing of the Philippine Environment Code. This code is a legislation that aims to protect and conserve the environment in the Philippines. It covers various aspects such as pollution control, natural resources management, and environmental impact assessments. By signing this code on June 6, 1977, the Philippine government demonstrated its commitment to environmental protection and sustainability.

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67. Fixture UNIT VALUE of a Urinal

Explanation

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

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68. The date when the Sanitation Code is issued.

Explanation

The correct answer is August 22, 1991. This is the date when the Sanitation Code was issued.

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

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.

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70. The date when the Provincial Water Utilities Act is signed.

Explanation

The correct answer is May 25, 1973. This date is the most likely to be the correct answer because it falls within a reasonable timeframe for the signing of the Provincial Water Utilities Act. The other dates provided are either too early or too late to be plausible.

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71. The date when the Water Code is signed.

Explanation

The correct answer is December 31, 1976. This date represents the signing of the Water Code.

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

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.

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

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.

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74. A device installed in a drainage system to prevent reverse flow

Explanation

A back water valve is a device that is installed in a drainage system to prevent reverse flow. It is designed to allow wastewater to flow out of the system but not back into it. This helps to prevent flooding and sewage backup in the event of heavy rain or flooding. The valve works by automatically closing when water starts to flow back into the system, effectively blocking any reverse flow. This ensures that wastewater only flows in one direction, preventing any contamination or damage to the system.

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

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.

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76. Fixture UNIT VALUE of a Slop Sink

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.

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

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.

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

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.

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79. Fixture UNIT VALUE of a Residential Sink

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.

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

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.

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