Plumbing Code For Philippines Quiz

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Plumbing Code For Philippines Quiz - Quiz

Here is an amazing plumbing code for the Philippines quiz for you. Can you name the following questions about the Plumbing Code? Well, this quiz is all about testing your knowledge of the plumbing code in the Philippines. It will provide you with a better understanding of how plumbing works and what the rules are there in the Philippines for it. So, be ready to take this long test, and we assure you that you are going to love it!


Questions and Answers
  • 1. 

    “Size of water piping shall be based on the total _________

    • A.

      Water consumption

    • B.

      Water demand

    • C.

      Water potability

    • D.

      None of the above

    Correct Answer
    B. Water demand
    Explanation
    The size of water piping is determined by the total water demand, which refers to the amount of water needed for various purposes such as drinking, bathing, cooking, and irrigation. The water demand is calculated based on factors like the number of occupants, the type of building, and the expected usage patterns. It is important to consider the water demand when sizing the piping system to ensure an adequate supply of water for all the intended uses.

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  • 2. 

    Water closet bowls for________ use shall be elongated bowl types equipped with open-front seats.   

    • A.

      Public

    • B.

      Private

    • C.

      Government

    • D.

      None of the above

    Correct Answer
    A. Public
    Explanation
    The correct answer is public. Water closet bowls for public use should be elongated bowl types equipped with open-front seats. This implies that these types of toilets are specifically designed for public spaces such as restrooms in parks, malls, or other public facilities.

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  • 3. 

     Wastewater drain for _________ cupsink at church altar & baptisteries font outlet shall discharge direct to the ground & not connected to any sanitary or drainage system.    

    • A.

      Holy sink

    • B.

      Lavatory

    • C.

      Baptismal shrine

    • D.

      Sacrarium

    Correct Answer
    D. Sacrarium
    Explanation
    The correct answer is "Sacrarium". A sacrarium is a special sink or drain used in churches for the disposal of holy water or other sacred substances. It is designed to prevent the mixing of these substances with regular wastewater or drainage systems, as they are considered to be sacred and require proper disposal. By discharging directly to the ground, the sacrarium ensures that the holy water is treated with respect and reverence.

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  • 4. 

    Suspended cast iron soil pipe shall be supported at not more than ____m intervals, except that pipe exceeding 1.5m length may be supported at not more than _____m intervals. Supports shall be adequate to maintain alignment & to prevent sagging & shall be placed within 0.45m of the hub or joint.   

    • A.

      1.5/ 3

    • B.

      1.5/ 4

    • C.

      3/ 1.5

    • D.

      4/ 1.5

    Correct Answer
    A. 1.5/ 3
    Explanation
    Suspended cast iron soil pipe should be supported at intervals of not more than 1.5m, except for pipes exceeding 1.5m in length, which can be supported at intervals of not more than 3m. The supports need to be strong enough to maintain alignment and prevent sagging, and they should be placed within 0.45m of the hub or joint.

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  • 5. 

    No water closet or bidet shall be set closer than ______m from its center to any side of the wall or obstruction or closer than ______m center to center to any similar fixture. 

    • A.

      .375 / 0.75

    • B.

      .375 / 0. 70

    • C.

      .40 / 0.70

    • D.

      .50 / 0.60

    Correct Answer
    A. .375 / 0.75
    Explanation
    The correct answer is .375 / 0.75. This means that a water closet or bidet should not be set closer than 0.375 meters from its center to any side of the wall or obstruction, and it should not be set closer than 0.75 meters center to center to any similar fixture. This ensures proper spacing and allows for comfortable use of the fixtures without any obstructions.

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  • 6. 

     Lead Pipe         - shall be supported at by____________for entire length with hangers properly spaced.

    • A.

      Stiff aluminum or wooden backing

    • B.

      Stiff metal or wooden backing

    • C.

      Stiff plastic or metal sheet

    Correct Answer
    B. Stiff metal or wooden backing
    Explanation
    The correct answer is stiff metal or wooden backing. A lead pipe needs to be properly supported throughout its entire length to prevent sagging or damage. Using a stiff metal or wooden backing provides the necessary support and stability for the pipe. This ensures that the pipe remains in place and does not suffer from any structural issues.

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  • 7. 

     Fixtures having concealed slip joint connections shall be provided with an access panel or utility at least ______m in its least dimension for inspection & repair.

    • A.

      0.30

    • B.

      0.20

    • C.

      0.10

    • D.

      0.40

    Correct Answer
    A. 0.30
    Explanation
    Fixtures with concealed slip joint connections need to have an access panel or utility for inspection and repair. This access panel or utility should have a minimum dimension of 0.30m.

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  • 8. 

     Excessive water pressure – water pressure greater than ____ Kpa

    • A.

      551

    • B.

      552

    • C.

      553

    • D.

      554

    Correct Answer
    A. 551
    Explanation
    Excessive water pressure refers to water pressure that is higher than a certain threshold. In this case, the correct answer is 551 Kpa, indicating that any water pressure greater than 551 Kpa would be considered excessive.

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  • 9. 

     drains shall have a waterway equivalent area of the “tailpiece” – meaning, the sum of all the areas of the perforation of the strainer is equivalent to the outlet area.  

    • A.

      Strainers serving bathub

    • B.

      Strainers serving shower

    • C.

      Strainers serving lavatory

    • D.

      None of the above

    Correct Answer
    B. Strainers serving shower
    Explanation
    The correct answer is "Strainers serving shower" because the statement mentions that drains should have a waterway equivalent area that is equivalent to the outlet area. This implies that the strainers serving showers should have a specific waterway equivalent area, which is not mentioned for the other options (bathtub and lavatory). Therefore, the answer is specifically for strainers serving showers.

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  • 10. 

     Copper Tubing - shall be supported at approximately ________m intervals for piping 38mm diameter & smaller & _______m intervals for piping 51mm & larger in dia.

    • A.

      1.8/ 3.0

    • B.

      1.9/ 3.5

    • C.

      1.5 / 2.5

    • D.

      None of the above

    Correct Answer
    A. 1.8/ 3.0
    Explanation
    Copper tubing of 38mm diameter and smaller should be supported at approximately 1.8m intervals, while piping of 51mm and larger in diameter should be supported at approximately 3.0m intervals.

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  • 11. 

    Continuous waste fixture tailpiece connections were exposed or accessible may be of seamless drawn brass not less than Ga. 20 B&S or ______mm thick.   

    • A.

      0.90

    • B.

      0.80

    • C.

      0.70

    • D.

      0.60

    Correct Answer
    B. 0.80
    Explanation
    The correct answer is 0.80. This means that the continuous waste fixture tailpiece connections should be made of seamless drawn brass that is not less than 0.80mm thick.

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  • 12. 

    All pipe determinations shall be based on eighty percent (___) the reduced pressure.  

    • A.

      70%

    • B.

      60%

    • C.

      80%

    • D.

      90%

    Correct Answer
    C. 80%
    Explanation
    When determining the pipe size, it is important to consider the reduced pressure. In this case, the correct answer is 80%, meaning that the pipe size should be based on 80% of the reduced pressure. This allows for a margin of safety and ensures that the pipe can handle the pressure without any issues.

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  • 13. 

    ______________ must be supported at least every other joint except that when the developed length between supports exceeds 1.2m, they shall be provided at each joint. 

    • A.

      Couplings and compression joints

    • B.

      Hubless or compression gasket joints

    • C.

      Caps and plugs

    • D.

      None of the above

    Correct Answer
    B. Hubless or compression gasket joints
    Explanation
    Hubless or compression gasket joints must be supported at least every other joint, except when the developed length between supports exceeds 1.2m, in which case they must be provided at each joint. This means that for shorter lengths, the joints can be supported every other joint, but for longer lengths, supports must be provided at each joint to ensure proper stability and prevent any potential issues or failures.

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  • 14. 

    ____________     - shall be supported by stiff metal or wood backing with hangers in its entire length for small-size tubings up to 38mm diameter & without backings but with spaced metal hangers at approved spacing for larger-size tubings.     

    • A.

      Steel tube

    • B.

      Plastic tube

    • C.

      Aluminum tube

    • D.

      Concrete tube

    Correct Answer
    B. Plastic tube
    Explanation
    Plastic tubes are the only option mentioned in the given statement that does not require stiff metal or wood backing with hangers. It states that small-size tubings up to 38mm diameter should be supported by stiff metal or wood backing with hangers, while larger-size tubings can have spaced metal hangers. Since plastic tubes are not mentioned in relation to these support requirements, it can be inferred that they do not need any backing or hangers for support. Therefore, the correct answer is plastic tube.

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  • 15. 

    ________ m max. length of supply piping.

    • A.

      61

    • B.

      62

    • C.

      63

    • D.

      64

    Correct Answer
    A. 61
    Explanation
    The correct answer is 61 because it is the maximum length of supply piping. This suggests that any length of supply piping greater than 61 would not be suitable or recommended.

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  • 16. 

    Any such pipe or piping _______mm or larger in diameter may have a slope of 10mm/m or 1% provided it is approved by Administrative Authority

    • A.

      100 mm

    • B.

      102 mm

    • C.

      101 mm

    • D.

      104 mm

    Correct Answer
    B. 102 mm
    Explanation
    Pipes with a diameter of 102 mm or larger may have a slope of 10mm/m or 1% if they are approved by the Administrative Authority. This means that the pipe can have a gradual incline of 10mm for every meter of length or a 1% slope. The specific diameter of 102 mm is mentioned because it meets the criteria for this slope allowance.

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  • 17. 

    Drainage pipes shall be run in practical alignments & at a uniform slope between manholes of not less than ______________ toward the point of disposal.

    • A.

      20mm/m or 2%

    • B.

      30mm/m or 3%

    • C.

      40mm/m or 4 %

    • D.

      10mm/m or 1 %

    Correct Answer
    A. 20mm/m or 2%
    Explanation
    Drainage pipes are designed to ensure the efficient flow of wastewater towards the point of disposal. To achieve this, the pipes should be laid in practical alignments and at a uniform slope. The slope helps to create a gravitational force that allows the wastewater to flow freely. In this case, the correct answer is 20mm/m or 2%, which means that for every meter of pipe, there should be a downward slope of 20mm or 2%. This slope is sufficient to ensure the proper drainage of wastewater and prevent any blockages or stagnant water.

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  • 18. 

    Changes in direction of piping shall be made by the use of approved pipe fittings & shall be the angles presented by the following except

    • A.

      22 ½ degrees bend

    • B.

      45 degrees bend

    • C.

      60 degrees bend or other approved fittings of longer sweeps

    • D.

      30 degress bend

    Correct Answer
    D. 30 degress bend
    Explanation
    The correct answer is 30 degrees bend. This is because the question asks for the angles that are NOT acceptable for changes in direction of piping. While 22 ½ degrees bend, 45 degrees bend, and 60 degrees bend or other approved fittings of longer sweeps are all acceptable for changes in direction, a 30 degrees bend is not.

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  • 19. 

    All piping of plumbing systems shall be of durable ____________-APPROVED materials, free from defective workmanship, designed and constructed by Registered Master Plumbersto ensure satisfactory service.

    • A.

      NAMPAP

    • B.

      DILG

    • C.

      DPWH

    • D.

      DENR

    Correct Answer
    A. NAMPAP
    Explanation
    The correct answer is NAMPAP. NAMPAP stands for National Association of Master Plumbers and is an organization that sets standards and guidelines for plumbing systems. The use of NAMPAP-approved materials ensures that the piping is of high quality and will provide satisfactory service.

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  • 20. 

    a physical separation, which may be a low inlet into the indirect waste receptor from the fixture, appliance or device indirectly connected

    • A.

      AIR SEPARATION

    • B.

      AIR BREAK

    • C.

      AIR DEVISOR

    • D.

      NONE OF THE ABOVE

    Correct Answer
    B. AIR BREAK
    Explanation
    An air break is a physical separation that prevents backflow of water or contaminants from a fixture, appliance, or device into the indirect waste receptor. It is typically achieved by having a low inlet into the waste receptor, creating a gap or break in the plumbing system. This helps to ensure that any potential contaminants or wastewater cannot flow back into the water supply system, maintaining the safety and integrity of the plumbing system.

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  • 21. 

    a length of soil or waste stack corresponding in the general to a storey height, but in no case less than 2.43m within which the horizontal branches from one floor or storey of a building are connected to the stack.

    • A.

      BRANCH INTERVAL

    • B.

      INTERVAL

    • C.

      BRANCH

    • D.

      LENGTH

    Correct Answer
    A. BRANCH INTERVAL
  • 22. 

    Each family dwelling unit on premises abutting on a sewer or with a private sewer-disposal system shall have at least ___ water closet and ___ kitchen-type sink

    • A.

      1,2

    • B.

      1,1

    • C.

      2,1

    • D.

      2,3

    Correct Answer
    B. 1,1
    Explanation
    Each family dwelling unit on premises abutting on a sewer or with a private sewer-disposal system is required to have at least one water closet and one kitchen-type sink. This means that every unit must have a toilet and a sink in the kitchen.

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  • 23. 

    Horizontal drainage lines connecting to a vertical stack shall enter through the following except,

    • A.

      45 wye branches

    • B.

      Combination wye & 1/8 bend branches

    • C.

      30 wye bend

    • D.

      Or other approved fittings of longer sweeps.

    Correct Answer
    C. 30 wye bend
    Explanation
    Horizontal drainage lines connecting to a vertical stack should enter through a 45 wye branch, a combination of wye and 1/8 bend branches, or other approved fittings of longer sweeps. The option of a 30 wye bend is not correct because it does not meet the requirements for the connection.

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  • 24. 

    Horizontal drainage lines connecting to other horizontal drainage lines shall enter through the following given below except:

    • A.

      45 wye branches

    • B.

      Combination wye & 1/8 bend branches

    • C.

      Or other approved fittings of longer sweeps.

    • D.

      30 wye bend

    Correct Answer
    D. 30 wye bend
    Explanation
    The correct answer is 30 wye bend. This is because the question is asking for the exception, and all the other options listed (45 wye branches, combination wye & 1/8 bend branches, or other approved fittings of longer sweeps) are acceptable ways for horizontal drainage lines to connect to each other. A 30 wye bend is not listed as an approved fitting for this purpose.

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  • 25. 

    Birth of plumbing profession in the Philippines

    • A.

      INTRAMUROS

    • B.

      BARASOAIN

    • C.

      BATAAN

    • D.

      CEBU

    Correct Answer
    A. INTRAMUROS
    Explanation
    Intramuros is the correct answer because it is the historical walled city within Manila, Philippines where the birth of the plumbing profession in the country can be traced back to. Intramuros was the center of trade and commerce during the Spanish colonial period, and it was in this area where the first plumbing systems were established to provide water supply and sanitation for the residents. The development of plumbing profession in the Philippines can be attributed to the establishment of these early plumbing systems in Intramuros.

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  • 26. 

    Vertical drainage lines connecting to other horizontal drainage line shall enter through

    • A.

      45 wye branches

    • B.

      Or other approved fittings of longer sweeps.

    • C.

      60 degree branches or offsets (only for pipes installed in true vertical position

    • D.

      45 degree branches

    Correct Answer
    D. 45 degree branches
    Explanation
    The correct answer is 45 degree branches. When vertical drainage lines connect to horizontal drainage lines, they should enter through 45 degree branches or other approved fittings with longer sweeps. This allows for a smooth flow of water and helps prevent clogs or blockages in the drainage system. 60 degree branches or offsets are only used for pipes that are installed in a true vertical position, while 45 degree branches are suitable for connecting vertical and horizontal lines.

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  • 27. 

    No Drainage Fitting shall use:

    • A.

      Double hub fitting for leak-caulked joint in vertical position

    • B.

      Single or double tee branch

    • C.

      Single or double tapped tee branch

    • D.

      Side inlet quarter bend, Running thread, band or saddle

    • E.

      All of the above

    Correct Answer
    E. All of the above
    Explanation
    All of the options listed (double hub fitting for leak-caulked joint in vertical position, single or double tee branch, single or double tapped tee branch, side inlet quarter bend, running thread, band or saddle) are not allowed to be used as drainage fittings.

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  • 28. 

    ____________________may be used on vertical lines as a fixture connection. (approved stainless steel bands with neoprene gaskets for jointing hubless cast iron soil pipes are acceptable for use)

    • A.

      Single hub sanitary tapped tee

    • B.

      Double hub sanitary tapped tee

    • C.

      Triple hub sanitary tapped tee

    • D.

      None of the above

    Correct Answer
    B. Double hub sanitary tapped tee
    Explanation
    The correct answer is double hub sanitary tapped tee. This type of fitting can be used on vertical lines as a fixture connection. It allows for the connection of multiple pipes, providing a sanitary and secure joint. The double hub design allows for easy installation and ensures a tight seal.

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  • 29. 

    a minimum standard quantity of plumbing fixtures that discharge wastes into a plumbing installation

    • A.

      Plumbing unit

    • B.

      Plumbing fixtures

    • C.

      Plumbing system

    • D.

      Plumbing minimum

    Correct Answer
    A. Plumbing unit
    Explanation
    A plumbing unit refers to a minimum standard quantity of plumbing fixtures that discharge wastes into a plumbing installation. In other words, it is a group of plumbing fixtures that are connected and work together to remove waste from a building. This can include fixtures such as toilets, sinks, showers, and drains. The plumbing unit ensures that there is an adequate number of fixtures to meet the needs of the building and properly dispose of waste.

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  • 30. 

    If water closets or other plumbing fixtures are installed in the buildings where there is no sewer within a reasonable distance, suitable provision shall be made for disposing of the building sewage by some accepted method of sewage treatment and disposal, such as ______________

    • A.

      WASTE TANK

    • B.

      SEPTIC TANK

    • C.

      SEWAGE DISPOSAL SYSTEM

    • D.

      NONE OF THE ABOVE

    Correct Answer
    B. SEPTIC TANK
    Explanation
    If there is no sewer within a reasonable distance, suitable provision needs to be made for disposing of the building sewage. The accepted method for this is a septic tank. A septic tank is an underground chamber made of concrete, fiberglass, or plastic, which collects and treats sewage. It separates solid waste from the liquid, allowing the liquid to flow out into a drain field for further treatment and disposal. A septic tank is a common and effective method for sewage treatment and disposal in areas where there is no access to a sewer system.

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  • 31. 

    In PROHIBITED FITTINGS & PRACTICES under this rule no ____________ shall be threaded.

    • A.

      GI soil pipe

    • B.

      Cast iron soil pipe

    • C.

      PVC soil Pipe

    • D.

      None of the above

    Correct Answer
    B. Cast iron soil pipe
    Explanation
    According to the given rule, no cast iron soil pipe shall be threaded. This means that it is not allowed to create threads on cast iron soil pipes as per the prohibited fittings and practices. The other options, GI soil pipe and PVC soil pipe, are not mentioned in the rule and therefore do not have any restrictions on threading. Therefore, the correct answer is cast iron soil pipe.

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  • 32. 

    Further, a _________ and bathtub or shower shall be installed to meet the basic requirements of sanitation and personal hygiene.

    • A.

      SINK

    • B.

      LAVATORY

    • C.

      BASIN

    • D.

      NONE OF THE ABOVE

    Correct Answer
    B. LAVATORY
    Explanation
    A lavatory is a type of sink that is specifically designed for personal hygiene purposes, such as washing hands and face. It typically includes a faucet for water supply and a drain for water disposal. In this context, the requirement is to install a lavatory along with a bathtub or shower to ensure proper sanitation and personal hygiene. Therefore, the correct answer is "LAVATORY".

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  • 33. 

    fixture directly connected to the drainage system shall be equipped with a ________.  

    • A.

      VENTILATING SYSTEM

    • B.

      WATER-SEALED TRAP

    • C.

      SOIL PIPES

    • D.

      WASTE PIPES

    Correct Answer
    B. WATER-SEALED TRAP
    Explanation
    A fixture directly connected to the drainage system needs to be equipped with a water-sealed trap. This is because the trap creates a barrier of water that prevents sewer gases and odors from entering the building through the fixture. The water-sealed trap acts as a seal and allows wastewater to flow through while blocking the passage of gases. This helps to maintain a healthy and odor-free environment within the building.

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  • 34. 

    Water pipes & fittings with a lead content that exceed ____ shall be prohibited & shall not be used in potable piping systems.

    • A.

      8%

    • B.

      9%

    • C.

      10%

    • D.

      11%

    Correct Answer
    A. 8%
    Explanation
    Water pipes and fittings with a lead content exceeding 8% are prohibited and should not be used in potable piping systems. This is because lead is a toxic substance that can leach into the water and pose serious health risks when consumed. Therefore, it is crucial to ensure that water pipes and fittings have a lead content below the specified threshold to maintain the safety and quality of the water supply.

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  • 35. 

    Water Closet & Urinal Tanks shall be equipped with a listed ________ & shall be installed with the critical level at least 25mm above the full opening of the overflow pipe.  

    • A.

      Corporation cock

    • B.

      Gatevalve

    • C.

      Ballcock

    • D.

      None of the above

    Correct Answer
    C. Ballcock
    Explanation
    Water closets and urinal tanks need to be equipped with a listed ballcock. This is necessary to control the flow of water into the tank and maintain the water level at the desired level. The critical level of the ballcock should be installed at least 25mm above the full opening of the overflow pipe to prevent any potential overflow or flooding. A corporation cock or gate valve would not serve the same purpose as a ballcock in this scenario.

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  • 36. 

    The quantity of water required to be supplied to every plumbing fixture shall be represented by ____________  

    • A.

      Fixture drain FD 

    • B.

      Fixture Units FU

    • C.

      Fixture Trap FT

    • D.

      None of the above

    Correct Answer
    B. Fixture Units FU
    Explanation
    Fixture Units (FU) is a unit of measurement used in plumbing engineering to quantify the demand or load that a plumbing fixture places on a water supply system. Each plumbing fixture, such as a sink, toilet, or shower, is assigned a specific number of fixture units based on its expected water usage. This allows engineers to calculate the total demand on the water supply system and appropriately size pipes, pumps, and other components. For example, a toilet might be assigned 4 fixture units, while a sink might be assigned 1 fixture unit. By totaling the fixture units for all fixtures in a building or system, engineers can determine the required capacity of the water supply system to ensure adequate water flow and pressure for all fixtures. Fixture Units provide a standardized way to design and evaluate plumbing systems, ensuring they meet the needs of users while maintaining efficiency and reliability.

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  • 37. 

    The minimum  airgap for Effective openings not greater than 25mm in diameter.  affected by walls

    • A.

      2 times diameter of effective opening

    • B.

      4 times diameter of effective opening

    • C.

      5 times diameter of effective opening

    • D.

      3 times diameter of effective opening

    Correct Answer
    D. 3 times diameter of effective opening
    Explanation
    The correct answer is 3 times the diameter of the effective opening. This means that the minimum airgap required for effective openings not greater than 25mm in diameter should be 3 times the diameter of the opening. This is important because it allows for proper airflow and ventilation, especially when the openings are affected by walls. Having a larger airgap ensures that there is enough space for air to flow freely, preventing any potential blockages or restrictions.

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  • 38. 

    The minimum  airgap for Effective openings

    • A.

      3 times diameter of effective opening

    • B.

      2 times diameter of effective opening

    • C.

      4 times diameter of effective opening

    • D.

      5 times diameter of effective opening

    Correct Answer
    B. 2 times diameter of effective opening
    Explanation
    The correct answer is 2 times the diameter of the effective opening. This means that the minimum airgap required for effective openings should be twice the diameter of the opening. This ensures that there is enough space for air to flow through the opening without any restrictions or blockages. A larger airgap allows for better airflow and prevents any potential clogging or reduced efficiency of the opening.

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  • 39. 

    The minimum air gap for Over rim bath fillers & other fixtures with effective openings not greater than 25mm in diameter. affected by walls

    • A.

      76mm

    • B.

      77mm

    • C.

      78mm

    • D.

      79mm

    Correct Answer
    A. 76mm
    Explanation
    The minimum air gap for over rim bath fillers and other fixtures with effective openings not greater than 25mm in diameter is 76mm. This means that there should be a minimum distance of 76mm between the fixture and any surrounding walls. This is important to ensure proper air circulation and prevent any potential contamination or backflow of water.

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  • 40. 

    The minimum air gap for Over rim bath fillers & other fixtures with effective openings not greater than 25mm in diameter. not affected by walls

    • A.

      54mm

    • B.

      53mm

    • C.

      52mm

    • D.

      51mm

    Correct Answer
    D. 51mm
    Explanation
    The minimum air gap for over rim bath fillers and other fixtures with effective openings not greater than 25mm in diameter is 51mm. This means that there should be a minimum distance of 51mm between the fixture and any adjacent walls or surfaces. This ensures that there is sufficient space for proper air circulation and prevents any potential interference or blockage of the fixture's openings.

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  • 41. 

    The minimum air gap for Lavatories & other fixtures with effective openings not greater than 13mm in diameter if not affected by wall

    • A.

      25

    • B.

      24

    • C.

      23

    • D.

      22

    Correct Answer
    A. 25
    Explanation
    The minimum air gap for lavatories and other fixtures with effective openings not greater than 13mm in diameter is 25. This means that there should be a minimum distance of 25mm between the fixture and any adjacent wall or obstruction. This is important to ensure proper ventilation and prevent any potential contamination or buildup of moisture or mold.

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  • 42. 

    The minimum air gap for Lavatories & other fixtures with effective openings not greater than 13mm in diameter if affected by walls

    • A.

      36mm

    • B.

      37mm

    • C.

      38mm

    • D.

      39mm

    Correct Answer
    C. 38mm
    Explanation
    The minimum air gap for lavatories and other fixtures with effective openings not greater than 13mm in diameter if affected by walls is 38mm. This means that there should be a minimum distance of 38mm between the fixture and any walls surrounding it to ensure proper air circulation and prevent any potential issues such as mold growth or moisture damage.

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  • 43. 

    The minimum air gap for  Sinks, laundry trays, goosenecks bath faucets & other fixtures with effective openings not greater than 19mm in diameter. if not affected by wall

    • A.

      40mm

    • B.

      39mm

    • C.

      38mm

    • D.

      37mm

    Correct Answer
    C. 38mm
    Explanation
    The minimum air gap required for sinks, laundry trays, goosenecks bath faucets, and other fixtures with effective openings not greater than 19mm in diameter is 38mm. This means that there should be a minimum distance of 38mm between the fixture and any adjacent wall or surface. This air gap is necessary to prevent any backflow or contamination of the water supply.

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  • 44. 

    The minimum air gap for  Sinks, laundry trays, goosenecks bath faucets & other fixtures witheffective openings not greater than 19mm in diameter. if affected by wall

    • A.

      56mm

    • B.

      57mm

    • C.

      58mm

    • D.

      59mm

    Correct Answer
    B. 57mm
    Explanation
    The minimum air gap for sinks, laundry trays, goosenecks bath faucets, and other fixtures with effective openings not greater than 19mm in diameter, if affected by a wall, is 57mm.

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  • 45. 

    Restaurant kitchen & other special-use sink may be made of approved-typed sheet steel not less than Ga.16 U.S. B&S or 1.6mm thk. 

    • A.

      Bonderized & galvanized

    • B.

      Aluminum

    • C.

      Steel

    • D.

      None of the above

    Correct Answer
    A. Bonderized & galvanized
    Explanation
    The correct answer is bonderized & galvanized. This is because restaurant kitchens and other special-use sinks need to be made of approved-typed sheet steel that is not less than Ga.16 U.S. B&S or 1.6mm thick. Bonderized and galvanized are both types of coatings that can be applied to steel to protect it from corrosion and increase its durability, making them suitable choices for these types of sinks. Aluminum and plain steel are not mentioned as approved options in the given information.

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  • 46. 

    No urinal shall be set closer than _________m center to center

    • A.

      0.70

    • B.

      0.60

    • C.

      0.50

    • D.

      0.65

    Correct Answer
    B. 0.60
    Explanation
    The correct answer is 0.60. This means that no urinal should be set closer than 0.60 meters center to center. This requirement ensures that there is enough space between urinals for privacy and comfort. Placing urinals too close together could make users feel crowded and uncomfortable. Therefore, a minimum distance of 0.60 meters is necessary to maintain adequate spacing between urinals.

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  • 47. 

    No building water service pipe shall be less than _____mm in diameter

    • A.

      21

    • B.

      20

    • C.

      25

    • D.

      19

    Correct Answer
    C. 25
    Explanation
    According to the Plumbing Code of the Philippines, no building water service pipe shall be less than 25 mm in diameter. This requirement ensures that the water service pipe is of adequate size to supply water to the building effectively and meets the necessary standards for water flow and pressure, contributing to the overall efficiency and safety of the building's plumbing system.

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  • 48. 

    No building sewer or other drainage pipings or part thereof, constructed of materials other than that approved for use under or within the building, shall be installed under or within _____ m of any building or structure, nor less than 0.3m below the finish ground surface

    • A.

      0.60

    • B.

      0.40

    • C.

      0.30

    • D.

      0.20

    Correct Answer
    A. 0.60
    Explanation
    According to the given statement, any building sewer or drainage piping that is not made of approved materials cannot be installed within 0.60m of any building or structure. This means that there must be a minimum distance of 0.60m between the building or structure and the sewer or drainage piping.

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  • 49. 

    Inadequate water pressure – water pressure less than _____ Kpa

    • A.

      103

    • B.

      104

    • C.

      105

    • D.

      106

    Correct Answer
    A. 103
    Explanation
    Inadequate water pressure refers to a situation where the water pressure is below a certain level, causing issues with water flow and supply. In this case, the correct answer is 103 Kpa, as it is the lowest value among the given options. This suggests that any water pressure below 103 Kpa would be considered inadequate.

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  • 50. 

    In Screwed Pipe   - IPS shall be supported at approximately _______m intervals for piping 19mm diameter & smaller  & _______m intervals for piping 25mm & larger in diameter.

    • A.

      3.5 / 3.0

    • B.

      3.0 / 3.5

    • C.

      3.6/ 3.0

    • D.

      3.0 / 3.6

    Correct Answer
    D. 3.0 / 3.6
    Explanation
    IPS (Iron Pipe Size) refers to a standardized pipe sizing system used in the United States for pipes made of iron or steel. According to the given answer, screwed pipes with a diameter of 19mm or smaller should be supported at approximately 3.0m intervals, while pipes with a diameter of 25mm or larger should be supported at approximately 3.6m intervals. This means that smaller diameter pipes require more frequent support than larger diameter pipes.

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Quiz Review Timeline +

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

  • Current Version
  • Apr 07, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 15, 2010
    Quiz Created by
    C2x_op26
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