Philippines Plumbing Code: Study with Quiz and Flashcards

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Questions and Answers

Who signed the Republic Act No. 1378, also known as the Plumbing Law?

Gov. General Harrison

Engr. Reynald B. Ilagan

Pres. Estrada

Pres. Magsaysay (correct)

What was established in 1902?

The Board of Master Plumbers

The plumbing trade (correct)

Feati University

NAMPAP

Who issued a letter of proposal for proper waste disposal?

Gov. General Harrison (correct)

Jaime M. Cabase

John F. Hass

Engr. Jaime J. Cruz

What was the first amendment to the Plumbing Code approved on?

November 28, 1967 Signup and view all the answers

Where was Plumbing Engineering first introduced?

Feati University Signup and view all the answers

What was promulgated and approved by Malacanang on January 28, 1959?

The Plumbing Code Signup and view all the answers

What does a pipe's size refer to?

Its interior diameter (I.D.) Signup and view all the answers

Who spearheaded the updating of the Revised Plumbing Code?

Jaime M. Cabase Signup and view all the answers

What was registered with the Securities and Exchange Commission in 1935?

NAMPAP Signup and view all the answers

What is the primary function of plumbing?

To bring in and remove liquids and substances in buildings Signup and view all the answers

What is a plumbing appliance?

A device that performs a special plumbing function Signup and view all the answers

What is a characteristic of a plumbing appurtenance?

It does not add discharge load to the drainage system Signup and view all the answers

What is a plumbing fixture?

An approved-type installed receptacle supplied with water Signup and view all the answers

What is not considered a plumbing fixture?

Industrial tanks Signup and view all the answers

What is the minimum angle of branch required for vertical drainage lines connecting with horizontal drainage lines?

45 degree Signup and view all the answers

At what interval should cleanouts be provided on a horizontal drainage pipe with an aggregate offset angle of direction exceeding 135 degrees?

Every 15 meters Signup and view all the answers

What is the minimum clearance required in front of a cleanout for piping 51mm or less?

305mm Signup and view all the answers

What is the minimum diameter of a pump discharge or discharge pipe from a sump having a water closet connected thereto?

50.8mm Signup and view all the answers

When can 60-degree branches or offsets be used in drainage lines?

Only in vertical positions Signup and view all the answers

What is the maximum distance from an access door, trap door, or crawl hole where cleanouts can be located in residential areas?

6.1m Signup and view all the answers

What type of fitting is required for a 90-degree cleanout extension?

Wye type Signup and view all the answers

When can cleanouts be omitted on horizontal drainage pipes?

On short horizontal drainage pipes installed at a slope of 72 degrees or less Signup and view all the answers

What term is used to describe a pipe fitting with adjacent reverse bends shaped like the letter 'S'?

Double-Bend Fitting Signup and view all the answers

What does the Durham System term describe?

A system where all pipings are of threaded pipe or tubing Signup and view all the answers

What type of waste is allowed in Domestic Sewage?

Liquid and water-borne wastes from ordinary living processes Signup and view all the answers

What is the Effective Opening in reference to plumbing?

The minimum cross-sectional area at the point of water supply discharge Signup and view all the answers

What does a Downspout refer to?

The vertical portion of a rainwater conductor Signup and view all the answers

What is the function of a Drain?

To carry ground surface waters, storm water, or wastewater into a building drainage system Signup and view all the answers

What is a Ferrule in plumbing terminology?

A caulked or joined metallic sleeve into which a plug is screwed for cleaning or examining a pipe Signup and view all the answers

What is included in a Drainage System?

Pipings within public or private premises conveying sewage to a legal disposal point Signup and view all the answers

What defines an air gap in water distribution systems?

The distance between the water source and the flood level rim of the tank Signup and view all the answers

Which device is used to prevent the reverse flow of liquid into the source of supply?

Vacuum Breaker Signup and view all the answers

What is the primary purpose of an approved testing agency?

Approving standards through testing Signup and view all the answers

What is backpressure backflow?

Backflow caused by an increased reverse pressure above the supply pressure Signup and view all the answers

What situation does a backwater valve address?

Preventing the reverse flow in drainage systems Signup and view all the answers

What is another name for the back-vent pipe in plumbing?

Individual vent Signup and view all the answers

What type of backflow occurs due to a negative pressure in the water supply pipe?

Back-siphonage Signup and view all the answers

What distinguishes a ball joint in pipe connections?

Its ability to allow movement in multiple directions Signup and view all the answers

Study Notes

History of Plumbing Practice

Republic Act No. 1378, also known as the Plumbing Law, was signed by President Magsaysay.
Republic Act No. 1364, also known as the Sanitary Engineering Law, was signed by President Magsaysay.
Republic Act No. 6541, also known as the Building Code of the Philippines, was signed into law.
City Ordinance 2411, also known as the Plumbing Code for the City of Manila, was established.
In 1902, the plumbing trade was recognized by the government.
In 1935, the National Master Plumbers Association of the Philippines (NAMPAP) was registered with the Securities and Exchange Commission.
The first licensure examination for master plumbers was held in July 1956.
The Plumbing Code was promulgated and approved by Malacanang on January 28, 1959.
In 1966-1969, examiners and NAMPAP prepared a curriculum for Plumbing Engineering.
The first amendment to the Plumbing Code was approved on November 28, 1967, which included the approval of Asbestos Cement Pipe as a plumbing material.
The first fully computerized examination for master plumbers was held on February 23, 1994.
Section 4 of R.A. 1378 was approved by President Estrada on December 21, 1999.

Master Plumber's Code of Ethics

A registered master plumber shall maintain a professional bearing consistent with an honorable and dignified pursuit of his/her profession.
A registered master plumber shall adhere to a set of conduct becoming his/her calling and shall not engage in any unprofessional behavior.

Definitions

Pipe: a cylindrical conduit or conductor conforming to particular dimensions commonly known as "pipe size" and denoted by its interior diameter (I.D.).
Plumbing: the art and technique of installing pipes, fixtures, and other apparatuses in buildings for bringing the supply of liquids, substances, and/or ingredients and removing them, including water, liquid, and other carried wastes hazardous to health, sanitation, life, and property.
Plumbing Appliance: any device or equipment intended to perform a special plumbing function, which may operate automatically or manually adjusted or controlled by the user or operator.
Plumbing Appurtenance: a manufactured device or a prefabricated assembly or an on-the-job assembly of component parts that serves as an adjunct to the basic piping system and plumbing fixtures, and performs some useful functions in the operation, maintenance, servicing, economy, or safety of the plumbing system.
Plumbing Fixtures: approved-type installed receptacles, devices, or appliances supplied with water or receiving liquid or liquid-borne wastes and discharging such wastes into the drainage system to which they may be directly or indirectly connected.

Cleanouts

Each horizontal drainage pipe shall be provided with a cleanout at its upper terminal and each run of piping that is more than 15 meters in total developed length shall be provided with a cleanout, and every 15-meter length or a fraction thereof.
Cleanouts may be omitted on horizontal drains less than 1.5 meters in length, unless such line is serving a sink or urinals, and on short horizontal drainage pipes installed at a slope of 72 degrees or less from the vertical line.
Additional cleanouts shall be provided on a horizontal line with an aggregate offset angle of direction exceeding 135 degrees.

Drainage of Fixtures Located Below the Upstream Manhole or Below the Main Sewer Level

The minimum size of any pump discharge or any discharge pipe from a sump having a water closet connected thereto shall not be less than 50.8 mm diameter.
All such pumps and receiving tanks shall be automatically discharged, and when rated "public use," shall be provided with dual pumps or ejectors.

Other Definitions

Domestic Sewage: liquid and water-borne wastes derived from the ordinary living processes, free from industrial wastes, and of such character that permit satisfactory disposal without special treatment.
Double-Bend Fitting: a pipe fitting with adjacent reverse bends and shaped like the letter "S".
Double Offset: two offsets in succession or in series, such that the centerlines of the outside ends are in the same straight line.
Downspout: the vertical portion of a rainwater conductor.
Drain: a pipe that carries ground surface waters, storm water, or wastewater into a building drainage system.
Drainage System: includes all the pipings within public or private premises that convey sewage or other liquid wastes to a legal point of disposal, but does not include the mains of a public sewer system or a public sewage system or disposal plant.
Durham System: a term used to describe a soil or waste system where all pipings are of threaded pipe, tubing, or other such rigid construction, using recessed drainage fittings to correspond to the types of piping.
Effective Opening: the minimum cross-sectional area at the point of water supply discharge, measured or expressed in terms of the diameter of a circle or the diameter of a circle of equivalent cross-sectional area (if the opening is not circular).
Existing Work: the on-going installation of the plumbing system or any part thereof, which has been installed prior to the effectivity of the National Plumbing Code.
Ferrule: a metallic sleeve caulked or joined to an opening in a pipe, into which a plug is screwed, that can be removed for cleaning or examining the interior of the pipe.
Air Gap, Drainage: the unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe, plumbing fixture, appliance, or appurtenance conveying waste to the flood level rim of the receptor.
Air Gap, Water Distribution: an unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet conveying potable water to the flood level rim of any tank, vat, or fixture.
Approved Testing Agency: an organization primarily established for purposes of testing to approve standards and approved by the Administrative Authority.
Backflow: the flow of water or other liquids, mixtures, or substances into the distributing pipes of a potable supply of water from any source other than from its intended source.
Backflow Connection: a condition or any arrangement whereby reverse flow can occur.
Backpressure Backflow: occurs due to an increased reverse pressure above the supply pressure, which may be due to pumps, boilers, gravity, or other sources of pressure.
Backflow Preventer: a device or means to prevent flow of liquid from returning to the source of supply, also called a "Vacuum Breaker".
Back-Siphonage: the flowing back of used, contaminated, or polluted water from a plumbing fixture or vessel into a water supply pipe due to a negative pressure in such pipe.
Backwater Valve: a device installed in the drainage system to prevent reverse flow.
Backvent Pipe: the 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 the fixture or fixture traps it serves.
Ball Cock: a valve opened and closed by the fall and rise, respectively, of an attached ball floating on the surface of the liquid.
Ball Joint: a type of pipe connection in which a ball-shaped end is held in a cup-like shell and allows movements in every direction.

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Description

This quiz covers the history of plumbing practice in the Philippines, including notable laws and codes such as Republic Act No. 1378 and City Ordinance 2411. It also touches on the role of the Board of Master Plumbers.

Philippines Plumbing Code and History

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