Plumbing: Master Plumber Exam! Trivia Questions Quiz

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Plumbing: Master Plumber Exam! Trivia Questions Quiz - Quiz

This trivia questions quiz is on Plumbing in preparation for the Master Plumber Exam! It is made up of hard to answer questions from past exams and is designed to give you an overview of how the questions may be set out. Do you feel like you are up to the task? Do take up the quiz and be a step closer to getting the top marks.


Questions and Answers
  • 1. 

    The minimum area of any vent installed in a CW & VS shall be at least  _______ the inside cross-sectional area of the drainpipe served.

    • A.

      1/2

    • B.

      1/4

    • C.

      Twice

    • D.

      3/4

    Correct Answer
    A. 1/2
    Explanation
    The minimum area of any vent installed in a CW & VS system should be at least half of the inside cross-sectional area of the drainpipe served. This ensures proper ventilation and prevents any potential blockages or restrictions in the drainage system.

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  • 2. 

    Cleanouts may not be required on any wet-vented branch serving a single trap when the fixture tailpiece or connection is not less than ________ in diameter and provide ready access for cleaning through the trap.

    • A.

      51 mm

    • B.

      64 mm

    • C.

      76 mm

    • D.

      25.4 mm

    Correct Answer
    A. 51 mm
    Explanation
    Cleanouts may not be required on any wet-vented branch serving a single trap when the fixture tailpiece or connection is not less than 51 mm in diameter and provide ready access for cleaning through the trap.

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  • 3. 

    "Sacrarium" waste of holy water and wastewater at church altar services must not be discharged into the sanitary drainage system but disposed of directly into the ground.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The explanation for the given answer is that the waste of holy water and wastewater at church altar services, known as "Sacrarium," should not be discharged into the sanitary drainage system. Instead, it should be disposed of directly into the ground. This is because the holy water and wastewater contain sacred elements and should be treated with respect and reverence. Disposing of them directly into the ground ensures that they are returned to the earth in a proper and respectful manner.

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  • 4. 

    Each plumbing fixture trap, except as otherwise provided in this Code, shall be protected against __________

    • A.

      Siphonage and back-pressure.

    • B.

      Siphonage and backflow.

    • C.

      Backflow and crossconnection

    • D.

      None of these.

    Correct Answer
    A. Siphonage and back-pressure.
    Explanation
    The correct answer is "siphonage and back-pressure." Plumbing fixture traps need to be protected against siphonage, which is the process of water being drawn out of a trap due to negative pressure, and back-pressure, which is the opposite of siphonage and occurs when there is excessive pressure in the plumbing system. This protection ensures that the traps maintain their water seals and prevent sewer gases from entering the building.

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  • 5. 

    Where permitted by the Administrative Authority, vent piping may be omitted on a ____________ when such __________ acts as primary settling tank and discharges through a horizontal indirect waste pipe into a secondary interceptor.

    Correct Answer
    interceptor
    Explanation
    When a secondary interceptor is used as a primary settling tank and discharges through a horizontal indirect waste pipe, vent piping may be omitted. This is because the secondary interceptor serves as a means of preventing sewer gases from entering the system, eliminating the need for additional venting.

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  • 6. 

    Vent fittings shall be cast iron, galvanized malleable iron or galvanized steel, lead, copper, brass, ABS, PVC, or other approved materials, except that no galvanized malleable iron or galvanized steel fittings shall be buried underground but shall be kept at least ______  above finish ground level.

    • A.

      152 mm

    • B.

      104 mm

    • C.

      204 mm

    • D.

      None of these.

    Correct Answer
    A. 152 mm
    Explanation
    Galvanized malleable iron or galvanized steel fittings are not suitable for burial underground due to their susceptibility to corrosion. Therefore, they must be kept at least 152 mm above the finish ground level to prevent contact with moisture and soil, which could accelerate the corrosion process.

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  • 7. 

    The length of the horizontal portion of a vent may exceed one-third (1/3) of the total length of vertical and horizontal portions as limited by Table 7.5 provided the vent is increased to one pipe size larger for its entire length.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    According to Table 7.5, the horizontal portion of a vent should not exceed one-third of the total length of vertical and horizontal portions. However, if the vent is increased to one pipe size larger for its entire length, this limitation can be exceeded. Therefore, the statement is true.

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  • 8. 

    Where vents connect to a horizontal drainage pipe, such vent pipe connection shall have its invert taken off above the drainage centerline of such pipe downstream of the trap being served.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is true because when vents connect to a horizontal drainage pipe, the vent pipe connection must be positioned above the drainage centerline of the pipe downstream of the trap it is serving. This ensures that any gases or odors from the drainage system can easily escape through the vent pipe without causing any blockages or backflow.

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  • 9. 

    The vent pipe opening from a soil or waste pipe, except for water closets and similar fixtures, shall not be below the weir of the trap.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is true because according to plumbing regulations, the vent pipe opening from a soil or waste pipe should not be positioned below the weir of the trap. This is important to prevent the backflow of sewer gases and odors into the building. The vent pipe allows for the proper ventilation and pressure equalization in the plumbing system, ensuring its efficient and safe operation.

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  • 10. 

    Each vent pipe or stack through roof (SVTR) shall extend its flashing all around and the stack vent shall terminate vertically not less than _______ above the roof nor less than 0.3 meter from any vertical surface nearby.

    • A.

      15 cm

    • B.

      10 cm

    • C.

      30 cm

    • D.

      20 cm

    Correct Answer
    A. 15 cm
    Explanation
    Each vent pipe or stack through roof (SVTR) shall extend its flashing all around and the stack vent shall terminate vertically not less than 15 cm above the roof nor less than 0.3 meter from any vertical surface nearby.

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  • 11. 

    Each vent opening shall terminate not less than ____________ from, or at least 0.9 meter above any openable window, door opening, air intake or vent shaft, nor less than _________ away from any lot line, alley and street boundary lines.

    • A.

      3 meters; 0.9 meter

    • B.

      1.5 meters; 0.9 meter

    • C.

      3 meters; 1.5 meter

    • D.

      None of these

    Correct Answer
    A. 3 meters; 0.9 meter
    Explanation
    Each vent opening must be at least 3 meters away from any openable window, door opening, air intake, or vent shaft. It must also be at least 0.9 meters above these openings. Additionally, the vent opening must be at least 3 meters away from any lot line, alley, or street boundary lines.

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  • 12. 

    Joints at the roof around stack vent pipes shall be made watertight by the use of approved flashing material and installation.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is true because it is important to ensure that joints at the roof around stack vent pipes are watertight. This is because stack vent pipes are openings in the roof that can potentially allow water to enter if not properly sealed. To prevent water leaks and damage to the roof and interior of the building, approved flashing material and proper installation techniques should be used to create a watertight seal around these joints.

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  • 13. 

    The size of yoke vent may be less in diameter than either the soil stack or the vent stack, whichever is smaller.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement suggests that the size of the yoke vent may be smaller in diameter than either the soil stack or the vent stack, whichever is smaller. However, this statement is false. According to plumbing codes, the size of the yoke vent should be equal to or greater than the diameter of the soil stack or the vent stack, whichever is larger. This ensures proper ventilation and prevents any blockages or issues in the plumbing system.

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  • 14. 

    One trap may serve a set of not more than three ( 3) single compartment sinks or laundry tubs of the same depth or three (3) lavatories immediately adjacent to each other and in the same room if the waste outlets are not more than 0.75 meter apart and the trap is centrally located when three (3) compartments are installed.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    According to the given statement, a trap can serve a set of up to three single compartment sinks or laundry tubs that have the same depth. It can also serve three lavatories that are located next to each other in the same room, as long as the waste outlets are not more than 0.75 meters apart and the trap is centrally located when three compartments are installed. This means that the statement is true, as it accurately reflects the conditions under which a trap can serve multiple fixtures.

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  • 15. 

    Each domestic clotheswasher and each laundry tub shall be connected to a separate and independent trap; except that a trap serving a laundry tub may also receive the waste from a clotheswasher set adjacent thereto.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    This statement is true because according to the given information, each domestic clotheswasher and laundry tub should have their own separate and independent trap. However, it is also mentioned that a trap serving a laundry tub can also receive the waste from a clotheswasher that is set adjacent to it. Therefore, both the clotheswasher and the laundry tub should have their own traps, but the trap for the laundry tub can also receive waste from the adjacent clotheswasher.

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  • 16. 

    Diameter of trap arm is 32 mm. What is the distance to vent in meter?

    • A.

      0.76

    • B.

      1.07

    • C.

      1.52

    • D.

      1.83

    Correct Answer
    A. 0.76
    Explanation
    38 mm = 1.07 m; 51 mm = 1.52 m; 76 mm = 1.83 m; 102 mm and larger = 3.05 m

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  • 17. 

    An exposed and readily accessible drawn brass tubing trap, not less than Gauge 17 B&S (1.1 mm), may be used on fixtures discharging domestic sewage but shall exclude urine.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer is that an exposed and readily accessible drawn brass tubing trap, with a minimum gauge of 17 B&S (1.1 mm), can be used on fixtures that discharge domestic sewage. However, it should not be used for urine.

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  • 18. 

    No more than one approved slip joint fitting may be used on the outlet side of a trap, and no tubing trap shall be installed without a listed tubing trap adapter.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is stating two rules regarding the installation of slip joint fittings and tubing trap adapters. The first rule is that only one approved slip joint fitting is allowed on the outlet side of a trap. The second rule is that a tubing trap cannot be installed without a listed tubing trap adapter. Therefore, the statement is true as it accurately describes the installation requirements for slip joint fittings and tubing traps.

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  • 19. 

    No form of trap which depends for its seal upon the action of movable parts or concealed interior partitions shall be used. ''S", Bell and Crown-vented traps are prohibited. No fixture shall be double trapped. Drum traps may be installed only when permitted by the Administrative Authority for special condition. No drum trap shall be installed without a vent

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is true because according to the given information, traps that rely on movable parts or concealed interior partitions are not allowed. This includes "S" traps and bell and crown-vented traps. Additionally, fixtures should not be double trapped, meaning they should only have one trap. Drum traps are only permitted under special conditions and must be installed with a vent. Therefore, the use of these types of traps is prohibited, making the statement true.

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  • 20. 

     interceptors or clarifiers in sand and similar heavy solids shall be so designed and located as to be readily accessible for cleaning and shall have a water seal of not less than _________ deep.

    • A.

      152 mm

    • B.

      104 mm

    • C.

      50 mm

    • D.

      None of the above

    Correct Answer
    A. 152 mm
    Explanation
    Interceptors or clarifiers in sand and similar heavy solids need to be designed and located in a way that allows easy access for cleaning. Additionally, they should have a water seal of at least 152 mm deep. This depth ensures that the seal is effective in preventing the escape of odors and gases, as well as preventing the entry of insects and rodents. A deeper water seal also helps to trap and separate the heavy solids effectively, allowing for efficient cleaning and maintenance of the interceptors or clarifiers.

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  • 21. 

    In ________, NAMPAP President JAIME M. CABASE spearheaded the updating of the Revised National Plumbing Code.

    • A.

      1996

    • B.

      1997

    • C.

      1995

    • D.

      1998

    Correct Answer
    A. 1996
    Explanation
    In 1996, NAMPAP President JAIME M. CABASE took the lead in updating the Revised National Plumbing Code.

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  • 22. 

    NAMPAP submitted the Draft Code to the Board of Master Plumbers (BOMP) Chaired by Engr. FORTUNATO H. AMOSCO.

    • A.

      October 1999

    • B.

      December 1999

    • C.

      June 1955

    • D.

      November 1967

    Correct Answer
    A. October 1999
    Explanation
    The given text states that NAMPAP submitted the Draft Code to the Board of Master Plumbers (BOMP) Chaired by Engr. FORTUNATO H. AMOSCO. This suggests that the event of submitting the Draft Code to BOMP occurred in October 1999.

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  • 23. 

    Professional Regulation Commission under Chairman ____________ adopted the Revised Plumbing Code of 1999 which His Excellency, President JOSEpH EJERCITO ESTRADA approved last December 21, 1999 pursuant to Section 4 of R.A. 1378 known as the Plumbing Law.

    • A.

      HERMOGENES POBRE

    • B.

      JAIME M. CABASE

    • C.

      FORTUNATO H. AMOSCO

    • D.

      MARVIN KALNGAN

    Correct Answer
    A. HERMOGENES POBRE
    Explanation
    The correct answer is HERMOGENES POBRE because the question asks for the name of the Chairman of the Professional Regulation Commission who adopted the Revised Plumbing Code of 1999.

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  • 24. 

    Before Martial Law in 1972, Republic Act No. _______ otherwise known as the "Building Code of the Philippines" was passed with the "National Plumbing Code of 1959" as referral code in full text.

    • A.

      6541

    • B.

      1378

    • C.

      9514

    • D.

      6969

    Correct Answer
    A. 6541
    Explanation
    Before Martial Law in 1972, Republic Act No. 6541, also known as the "Building Code of the Philippines," was passed. This law referred to the "National Plumbing Code of 1959" as the full text for plumbing regulations.

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  • 25. 

    On _________________ the First Amendment to the National Plumbing Code was approved, which effected the inclusion of "Asbestos Cement Pipe" as an approved plumbing material.

    • A.

      November 28, 1967

    • B.

       January 28, 1959

    • C.

       June 18, 1955

    • D.

      None of these.

    Correct Answer
    A. November 28, 1967
    Explanation
    The correct answer is November 28, 1967. This date marks the approval of the First Amendment to the National Plumbing Code, which resulted in the inclusion of "Asbestos Cement Pipe" as an approved plumbing material.

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  • 26. 

    In ________ the Board of Examiners for Master Plumbers and the NAMPAP prepared a Curriculum for Plumbing Engineering that was approved by the Department of Education and was first introduced at the Feati University.

    • A.

      1966 - 1969

    • B.

      Before martial law in 1972

    • C.

      1902

    • D.

      1996

    Correct Answer
    A. 1966 - 1969
    Explanation
    The given answer, 1966 - 1969, suggests that during this time period, the Board of Examiners for Master Plumbers and the NAMPAP collaborated to create a Curriculum for Plumbing Engineering. This curriculum was approved by the Department of Education and was first implemented at the Feati University.

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  • 27. 

    On ___________, the National Plumbing Code of the Philippines prepared by the NAMPAP was promulgated and approved by Malacanyang. NAMPAP also assisted in the passage of the law creating the National Waterworks and Sewerage Authority (NAWASA).

    • A.

      January 28, 1959

    • B.

      November 28, 1967

    • C.

      June 18, 1955

    • D.

      None of these.

    Correct Answer
    A. January 28, 1959
  • 28. 

    In ________, the Third Congress of the Republic of the Philippines in its Second Session, approved after the third reading House Bill No. 962. This became Republic Act No.1378. On June 18, 1955, R.A. 1378, otherwise known as the "PLUMBING LAW OF THE pHILIPPINES" was signed by President Ramon Magsaysay.

    • A.

      1954

    • B.

      1955

    • C.

      1959

    • D.

      1967

    Correct Answer
    A. 1954
  • 29. 

    Initiated by NAMPAP, the Department of Public Services of the City of Manila was created by an Act of Congress. City Ordinance _______, otherwise known as "the Plumbing code for the City of Manila" was enacted in consultation with NAMPAP. The practice of plumbing was eventually placed under the Department of Public Services, Manila.

    • A.

      2411

    • B.

      962

    • C.

      6541

    • D.

      1935

    Correct Answer
    A. 2411
    Explanation
    The correct answer is 2411. The question provides information about the creation of the Department of Public Services of the City of Manila by an Act of Congress initiated by NAMPAP. It also mentions the enactment of a City Ordinance related to plumbing in consultation with NAMPAP. The number 2411 does not have any relevance or connection to the given information.

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  • 30. 

    In _________, Francisco Geronimo, Mariano de Ocampo, lgmidio Suarez, Eusebio Mina, Jose Rivera, Raymundo Reyes, Sr., Roberto Feliciano, Gregorio Lazaro, Raymundo Gumapac, John Jones, Trinitario Ortiz, Valentin Casupanan, Catalino Casupanan, Crispin Francisco, Teodoro Pastor, Cornelio Odvina and Jesus Tanghal Dera organized the National Master Plumbers Association of the Philippines (NAMPAP) and had it registered with the Securities and Exchange Commission.

    • A.

      1935

    • B.

      1955

    • C.

      1902

    • D.

      1967

    Correct Answer
    A. 1935
    Explanation
    17 Master Plumbers

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  • 31. 

    Through the initiative of the Filipino Master Plumbers, a plumbing code based on the Plumbing Code of the __________ was incorporated into the Building Code for the City of Manila.

    • A.

      United States

    • B.

      United Kingdom

    • C.

      Spain

    • D.

      China

    Correct Answer
    A. United States
    Explanation
    The correct answer is United States because the Filipino Master Plumbers incorporated a plumbing code into the Building Code for the City of Manila based on the Plumbing Code of the United States. This suggests that the United States' plumbing code served as a model or inspiration for the development of the plumbing regulations in Manila.

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  • 32. 

    Sometime in _______, the PLUMBING TRADE was duly recognized by the government. The City of Manila was the model community.

    • A.

      1902

    • B.

      1935

    • C.

      1955

    • D.

      1967

    Correct Answer
    A. 1902
    Explanation
    In 1902, the plumbing trade was officially recognized by the government. The City of Manila served as the exemplary community in this regard.

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  • 33. 

     Master Plumber ________ became the first Chief of the Division of Plumbing Construction and Inspection.

    Correct Answer
    John F. Hass
    Explanation
    John F. Hass became the first Chief of the Division of Plumbing Construction and Inspection.

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  • 34. 

    PLUMBING took a great leap at the turn of the __________ with the arrival of the American soldiers, engineers, Thomasite teachers, doctors and evangelists.

    • A.

      20th century

    • B.

      19th century

    • C.

      18th century

    • D.

      17th century

    Correct Answer
    A. 20th century
    Explanation
    Plumbing took a great leap at the turn of the 20th century with the arrival of American soldiers, engineers, Thomasite teachers, doctors, and evangelists. This suggests that significant advancements and developments in plumbing occurred during the 20th century, likely due to the influence and expertise brought by these individuals.

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  • 35. 

    _________ became priority when epidemics including cholera, leprosy, schistosomiasis and other contagious diseases engulfed the Philippines. Alarmed, Governor General Harrison issued a letter of instruction on proper waste disposal in all municipalities.

    • A.

      Health and hygiene

    • B.

      Plumbing

    • C.

      Disease

    • D.

      Fitness

    Correct Answer
    A. Health and hygiene
    Explanation
    The given passage mentions that epidemics and contagious diseases were spreading in the Philippines, leading to a letter of instruction on proper waste disposal. This indicates that the priority in this situation would be health and hygiene, as proper waste disposal is crucial for preventing the spread of diseases. Plumbing, disease, and fitness are related concepts, but health and hygiene directly address the issue at hand.

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  • 36. 

    The recognized plumbers then were called upon by the ''ilustrados" or the elite group to act as consultants of plumber journeymen on matters pertaining to plumbing installations in _________.

    • A.

      Villas and mansions

    • B.

      Constructions

    • C.

      Housing projects

    • D.

      None of these.

    Correct Answer
    A. Villas and mansions
    Explanation
    The recognized plumbers were sought after by the elite group, known as the "ilustrados," to provide guidance to plumber journeymen on plumbing installations in villas and mansions. This suggests that the plumbers were considered experts in their field and were trusted to handle the plumbing needs of the wealthy and influential individuals residing in villas and mansions.

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  • 37. 

    During the ____________ , the Filipino plumbers were assigned the task of maintaining, repairing and/or remodeling plumbing systems in all "pueblos" or towns including churches, convents and government buildings.

    • A.

      18th and 19th centuries

    • B.

      20th century

    • C.

      17th century

    • D.

      None of these.

    Correct Answer
    A. 18th and 19th centuries
    Explanation
    During the 18th and 19th centuries, the Filipino plumbers were responsible for the upkeep and renovation of plumbing systems in various towns, including important structures such as churches, convents, and government buildings. This indicates that the Filipino plumbers played a crucial role in maintaining the infrastructure of these towns during that time period.

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  • 38. 

    The __________ who built the government buildings, residential and other structures, incorporated European standards in their plumbing installations.

    • A.

      Friar Engineers

    • B.

      Plumbing Engineers

    • C.

      Civil Engineers

    • D.

      None of these.

    Correct Answer
    A. Friar Engineers
    Explanation
    Friar Engineers were the ones who built the government buildings, residential and other structures and incorporated European standards in their plumbing installations.

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  • 39. 

    The _______ known as Intramuros was established by the Spaniards as a model community.

    • A.

      WALLED CITY

    • B.

      CEBU CITY

    • C.

      MANILA CITY

    • D.

      None of these.

    Correct Answer
    A. WALLED CITY
    Explanation
    Intramuros, also known as the Walled City, was established by the Spaniards as a model community. This term refers to a specific area within Manila City that is surrounded by defensive walls. The Spaniards built Intramuros during the colonial period to protect the city from invasions and attacks. It was designed as a self-contained community with churches, government buildings, residential areas, and other amenities. The Walled City is an important historical and cultural landmark in the Philippines, showcasing the architectural and urban planning influences of the Spanish colonial era.

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  • 40. 

    The birth of the plumbing profession in the Philippines is traced back to the _________ .

    • A.

      17th century

    • B.

      18th century

    • C.

      19th century

    • D.

      20th century

    Correct Answer
    A. 17th century
    Explanation
    The birth of the plumbing profession in the Philippines is traced back to the 17th century. This suggests that plumbing services were established and practiced in the country during this time period. It indicates that the profession of plumbing has a long history in the Philippines, dating back several centuries.

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  • 41. 

    Each plumbing fixture trap, except as otherwise provided in this Code, shall be protected against ___________ and ___________.

    • A.

      Siphonage

    • B.

      Back-pressure

    • C.

      Backflow

    • D.

      Cross-connection

    Correct Answer(s)
    A. Siphonage
    B. Back-pressure
    Explanation
    Each plumbing fixture trap must be protected against siphonage and back-pressure. Siphonage occurs when water is drawn out of the trap due to negative pressure in the system, while back-pressure happens when excessive pressure forces water back into the trap. Both conditions can lead to the loss of the trap seal, which is essential for preventing sewer gases from entering the building. Therefore, protection against siphonage and back-pressure is necessary to maintain the integrity of the plumbing system and ensure the health and safety of occupants.

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  • 42. 

    Where permitted by the Administrative Authority, vent piping may be omitted on an interceptor when such interceptor acts as primary settling tank and discharges through a horizontal indirect waste pipe into a secondary interceptor. The _________  shall be properly tapped and vented.

    • A.

      Second interceptor

    • B.

      First interceptor

    • C.

      All of these

    • D.

      None of these

    Correct Answer
    A. Second interceptor
    Explanation
    When an interceptor acts as a primary settling tank and discharges through a horizontal indirect waste pipe into a secondary interceptor, vent piping may be omitted. However, the second interceptor still needs to be properly tapped and vented. Therefore, the correct answer is the second interceptor.

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  • 43. 

    Traps serving sinks which are part of the equipment of bars, soda fountains and counters need not be vented when the location and construction of such bars, soda fountains and counters is to make it impossible to do so. When such conditions exist, said sink shall discharge by means of approved _________ into a floor sink or other approved type receptor.

    • A.

      Indirect waste pipe

    • B.

      Direct waste pipe

    • C.

      None of these

    Correct Answer
    A. Indirect waste pipe
    Explanation
    In this question, we are given a scenario where traps serving sinks in bars, soda fountains, and counters cannot be vented due to the location and construction of these establishments. In such cases, the sinks are required to discharge by means of an approved indirect waste pipe into a floor sink or other approved type receptor. Therefore, the correct answer is "indirect waste pipe" as it is the appropriate method for the sink to discharge in these circumstances.

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  • 44. 

    Galvanized wrought iron or galvanized steel pipe may be used underground and shall be kept at least 15 cm above ground.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Galvanized wrought iron or galvanized steel pipe can be used underground, but it should not be kept at least 15 cm above ground. The correct answer is False.

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  • 45. 

    Burred ends shall be _____ to the full bore of the pipe.

    • A.

      Reamed

    • B.

      Threaded

    • C.

      Soldered

    • D.

      Tapped

    Correct Answer
    A. Reamed
    Explanation
    In order to achieve a smooth and even flow of fluid through the pipe, the ends of the pipe need to be reamed. Reaming involves removing any burrs or rough edges from the inside of the pipe, ensuring that the bore is clear and unobstructed. This allows for maximum flow and prevents any potential blockages or disruptions in the pipe system.

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  • 46. 

    The sizes of vent piping shall be determined from its length and the total number of fixture units connected thereto, as set forth in Table 7-5 of this Code.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is true because according to the given information, the sizes of vent piping are determined based on the length of the piping and the total number of fixture units connected to it. This determination is done using the guidelines provided in Table 7-5 of the Code. Therefore, the statement is correct.

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  • 47. 

    All vent pipes shall extend undiminished in size above the roof or shall be reconnected with the soil or waste stack vent of proper size at a point below the roof, the vent through the roof (VSTR) shall be increased __________ above the reconnection point of stack vent and horizontal vent.

    • A.

      One pipe size

    • B.

      Two pipe size

    • C.

      Three pipe size

    • D.

      None of these.

    Correct Answer
    A. One pipe size
    Explanation
    The correct answer is "one pipe size". According to the given information, vent pipes should extend above the roof or be reconnected with the soil or waste stack vent below the roof. In the case of the vent through the roof, it should be increased by one pipe size above the reconnection point of the stack vent and horizontal vent. This means that the diameter of the vent pipe should be increased by one size above the point where it reconnects with the other vents.

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  • 48. 

    The vent pipe opening from a soil or waste pipe, except for water closets and similar fixtures, ________ below the weir of the trap.

    • A.

      Shall not be

    • B.

      Shall be

    • C.

      Both of these.

    Correct Answer
    A. Shall not be
    Explanation
    The vent pipe opening from a soil or waste pipe, except for water closets and similar fixtures, shall not be below the weir of the trap. This means that the vent pipe opening should be positioned above the trap's weir to ensure proper ventilation and prevent any backflow or siphoning of gases or waste.

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  • 49. 

    Two (2) fixtures may be served by a common vertical vent pipe when each such fixture wastes separately into an approved double branch fitting having inlet openings at the same level.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    This statement is true because according to plumbing codes, two fixtures can be connected to a common vertical vent pipe if they each have their own separate waste pipes and are connected to an approved double branch fitting at the same level. This arrangement allows for proper ventilation and prevents the build-up of sewer gases in the plumbing system.

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  • 50. 

    Clean water act.

    • A.

      RA 9275

    • B.

      RA 1364

    • C.

      RA 386

    • D.

      RA 9514

    Correct Answer
    A. RA 9275
    Explanation
    RA 1364 - Sanitary Engineering Law; RA 386 - Civil Code of the Philippines; RA 9514 - Fire Code of the Philippines of 2008

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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
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 16, 2019
    Quiz Created by
    Marvin Kalngan
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