Friday, October 31, 2008

Review Questions Utilities Part 5 Plumbing


1. What ancient roman term refers to an individual who worked in the sanitary field of ancient Rome?

2. What is the title given to a person who is a skilled worker in the field of sanitation?

3. NPCP refers to:

4. Its complete RA no:

5. What is the meaning of BOD?

6. Each fixture directly connected to the drainage system shall be equipped with __________.

7. Plumbing is defined as the art and science of ___________ pipes, fixtures and other apparatus.

8. What is the general role of Sanitary and Environmental Engineering?

9. This promulgated the design and layout of a plumbing system that is governed by set of rules

10. In the 17th century, the English parliamentary passed the first ___________ laws.


1. What period was plumbing revived? It is the period when Europe was plagued with epidemics.

2. Plumbing shall be installed with due regard to presentation of the strength of ___________ and prevention of damage to walls and other surfaces through fixture usage.

3. In what civilization did the concept and importance of plumbing became more defined and appreciated?

4. The ability of an area resource system to support the activities of a given population.

5. ____________ is a part of ecosystem and is the major contributor to pollution of the environment.

6. ____________, including fixtures, shall be maintained and properly usable

7. This the pollutant that affects the quality of water due to impact of Biochemical Oxygen Demand (BOD) discharges, that rises when temperature rises.

8. An act which regulate the Practice of Sanitary Engineering in the Philippines.


1. In 1907, a division of plumbing construction and inspection, with the city of Manila as a model, was headed by whom?

2. This act is known as __________ that was approved on June 18, 1955.

3. The liquid and water borne waste derived form the ordinary living process, free from industrial wastes, and of such character as to permit satisfactory disposal without special treatment into the public sewer or by means of private disposal system.

4. The 1999 NAMPAF Plumbing Code Review Committee President.


1. When was the Rep. Act No. 1378, also known as the National Plumbing Code of the Philippines approved?

2. When was the practice of Plumbing in the Philippines initiated?

3. What is the act for Water Quality Management?


1. TRUE OR FALSE : Sanitation is the field of public health dealing with environmental degration and prevention and control of diseases

2. TRUE OR FALSE : The design and layout of plumbing system is governed by a set of rules promulgated by the National Standard Plumbing Code (NSPC)

3. Plumbarius is to individual who worked in the sanitary field, while Plumbum is to ___________.



1. ___________ is the most satisfactory means of water distribution.

2. In this method of distribution, the excess water pumped during periods of low consumption is stored in elevated tanks or reservoir.

3. In dual main systems, ____________ are added on the south and west sides of streets and piping is generally placed beneath sidewalks.

4. ____________, sometimes called arterial mains, for in the skeleton of the distribution system.

5. ____________ is used for city water pipes.

6. ____________ is used for pipelines, truck mains and inverted siphon where pressures are high and sizes are large.

7. ____________ a stronger and more elastic type of cast iron used in newer plumbing installation.

8. A chemical reaction which involves the removal of metallic electrons from metals and formation of more stable compounds.


1. Consist of a cylinder in which a piston or a plunger moves backwards and forwards.

2. Used to raise water from shallow depths and used most frequently for individual houses.

3. ____________ is a pump that increases the pressure within the distribution system or raise water to an elevated water storage tank.

4. Pump that lifts surface water and move it to a nearby treatment plant.

5. Pump that discharge treated water into arterial mains.


1. Used to supply or remove water from a building.

2. Centrifugal casting on metal moulds is sometimes called ____________ .

3. Necessitates a large pipe or conduit so that velocities will be low but not low enough to allow sedimentation.


1. Generally, the equalizing volume of a water thank that is about ____________ of the total daily demand.

2. In residential areas having houses up to 4 storeys high, the pressure in the pipes should be between _____________.


1. High service system is high lying areas; while _____________ is to low lying areas

2. TRUE OR FALSE : Water distribution is a network of pumps, pipelines, storage tanks and appurtenances.



1. It is a special type of underground water that is found on islands or in the coastal regions near the sea.

2. This should be supplied with water in sufficient volume or at adequate pressure to enable them to function properly.

3. Flush tanks which are directly connected to the potable water supply system should be equipped with approved ___________.

4. _____________ is a junction between water supply systems through which water from doubtful or unsafe sources may enter an otherwise safe supply.

5. What are the 3 main sources of water supply?

6. _____________ is required to be installed so as to register the amount of water supplied to a building.

7. _____________ is used to prevent back siphonage.

8. ______________ permits water drawn into a fixture tank or similar devices to flow back into the supply line by gravity or siphonage.


1. ______________ is when water contains visible material in suspension

2. ______________ is caused by material in solution or a colloidal state should be distinguished from turbidity.

3. The carbonate and bicarbonate of calcium, sodium and magnesium are the common impurities which cause ______________.

4. _______________ in water causes hardness, and in small amount it will cause taste, discoloration of clothes and plumbing fixtures and incrustations in water mains.

5. Excavation for the installation of underground water supply piping should be _____________.


1. The proportional change in length corresponding to 1°F change in temperature is known as the _______________.

2. ________________ is water bearing stratum.

3. There are two types of well____________ & ____________.



1. The recommended slope for the house drain.

2. A type of house drain that receives the discharges of sanitary and domestic waste only.

3. A drainage pipe that carries on is designed to carry human excretement.

4. A drainage pipe that carries liquid waste that not include human excretement.

5. Water that is safe to drink, pleasant to the taste and usable for domestic purposes.

6. A communicable disease which may be transmitted by water include bacterial, viral and protozoal infections.

7. A water is _____________ when it contains visible material in suspension.


1. MCL means

2. A type of house drain that receives discharges of sanitary as well as storm water.

3. This type of drain is now considered obsolete and not advisable.

4. In large buildings, _____________ are usually suspended from the basement ceiling.


1. A cleanout shall be provided on the house drain as near as possible the ______________ of the building.

2. A kind of drain that should terminate into a separate drainage system.

3. The house drain should be provided with adequate number of _____________.



2. Boating, shooting or fishing should not be allowed within ____________ of the water intake.


1. TRUE OR FALSE : In changing house drain directions, the branch shall be run at right angle as a floor drain.

2. TRUE OR FALSE : A cleanout extended above the floor can also be utilized as floor drain.

3. TRUE OR FALSE : All changes of direction shall be done with short radius fittings.



1. A concrete vault constructed for the collection of raw sewage sealed with a wooden shelter.

2. A receptacle in which liquids are retained for sufficient period to the deposit settle able material.

3. A hole in the ground with stone and bricks laid in such manner as to allow raw contaminated sewage to leach under the surface of the ground.

4. The main sewer is financed and maintained by ____________.

5. ____________ is the liquid conveyed by a sewer.

6. ____________ is water which enters sewers from surface sources such as graces in manholes, open cleanouts, perforated manhole covers and roof drains or basement sumps connected to the sewer.

7. A pipe venting acid waste system.

8. A watertight container of sewage.


1. A permanently installed mechanical device for removing sewage or liquid waste from a sump other than ejector.

2. This bacteria functions in absence of free oxygen.

3. Considered as the oldest type of sewer.

4. Minimum width for septic tank.


1. That portion of the horizontal drainage system which starts from the outer face of the building and terminate at the main sewer in the street or septic tank.

2. Sometimes referred to as “the collection line of a plumbing system.”

3. The septic tank should be double compartment and should be capable of holding how many times of daily waste water flow.



2. How many percent of the total sewage solids is organic and subject to rotting.


1. TRUE OR FALSE : The minimum depth for septic tank is 1.20m

2. TRUE OR FALSE : No septic tank shall be installed within under a house.

TRUE OR FALSE : Septic tank should be located not less than 15m away from potable water to prevent contamination.



1. What do you call the drain from the trap of a fixture to the junction of the drain pipe?

2. An element composed of an atom of Oxygen and two atoms for Hydrogen, otherwise known as H2O.

3. What is the immersion in a fluid for a definite period of time, usually expressed as a percent of weight of the dry pipe?

4. This type of storm drain is used in buildings located in congested business areas.

5. It is that unit of the plumbing system which conveys storm water to a satisfactory terminal.

6. It is often referred to as conductor or downspout. It is also the portion of the storm drainage system which extends between storm drain & the roof terminal

7. This type of storm drain is advisable on buildings where an ample amount of ground space between buildings is available.

8. A type of storm drain that is suspended from the basement ceiling by substantial hangers, placed at close intervals, and generally is adapted to buildings where public storm sewer is not sufficiently deep in the street.


1. This is the type of storm drain located under the basement floor within the walls of the building and is used in buildings located in congested business areas.

2. What do you call that unit of the plumbing system which conveys storm water to a satisfactory terminal?

3. Rainwater piping should not be used as:

4. Roof drains shall not be made of __________.


1. The outside roof leader is located on the _____

2. The inside roof leader is installed ___________

3. What do you call the drain from the trap of a fixture to the junction of the drain pipe?

4. All storm drains should be graded at least

5. This type of terminal should be used only where the public sewer discharges its contents into a terminal other than a disposal plant.


1. A connection and installation of rainwater systems are found in what section of the NPCP?

2. What chapter of the NPCP discusses about storm drainage system?


1. The roof leader is extended _________ through the floors of the building to a point just below the roof & is then extended _________ to reduce the danger of breakage which may result because of expansion and contraction of the roof.

2. Conductor is to vertical; __________ is to horizontal

3. Catch basin is a receptacle in which _________ are retained for a sufficient period of time to allow settle able material to deposit

4. TRUE OR FALSE : The discharge capacity of the pipe varies according to its length and grade per foot.

5. TRUE OR FALSE : One factor which makes the sizing of storm drain difficult is the matter of grouping rainfall over a given period.

6. TRUE OR FALSE : Another element to consider in determining the size of the drain is the depth of the building.

7. TRUE OR FALSE : The storm drain is connected to the sewer at right angles by means of a 45° Y and curve assembled in exactly the same manner as a sanitary house sewer connection.

8. TRUE OR FALSE : The change of direction at the highest point of the conductor should be made by means of an elbow & 45° fitting.

9. TRUE OR FALSE : The base of the roof leader must be provided with a concrete or stone foundation.

10. TRUE OR FALSE : If the roof leader is constructed of galvanized steel, it must be supported at every floor with a pipe rest.

11. TRUE OR FALSE : Horizontal runs may not be suspended from band iron hangers or steel ring hangers anchored in the structure

12. TRUE OR FALSE : The roof leader is extended vertically through the floors of the building to a point just below the roof and is then extended horizontally to reduce the danger of breakage which may result because of expansion and contraction of the roof.

13. TRUE OR FALSE : A cast-iron strainer basket is attached to the drain to prevent stones, leaves and other materials from entering the conductor.

14. TRUE OR FALSE : Roof drains are provided with a copper flashing, or in some instances, with a cast-iron clamp so that the joint between the roof and the conductor will be water-tight.

15. TRUE OR FALSE : A roof leader may be terminated by placing a hub of cast-iron soil pipe flush with the roof.

14. TRUE OR FALSE : Roof drains are provided with a copper flashing, or in some instances, with a cast-iron clamp so that the joint between the roof and the conductor will be water-tight.

15. TRUE OR FALSE : Changes in direction of the roof leader must always be of short radius so the flow water in the conductor will not be retarded, except where the change is from horizontal to vertical direction.



1. Do appurtenances need direct connection to water supply?

2. What type of plumbing material is a water heater?

3. What do you call a faucet opened or closed by the fall or rise of a ball floating on the surface of water?

4. What is the most expensive type of all pipes?

5. What type of pipe is durable and has extreme resistance to corrosion?

6. What type of plumbing material is a water closet?

7. What type of pipe is the most specified material need for drainage installation in buildings?

8. What plumbing material receives water-bourn wastes?

9. What type of plumbing material is a soap dispenser?


1. CISPI stands for:

2. “U” in UPVC stands for

3. The use of cast-iron pipes should be limited to buildings ______stories in height.

4. It is a non-metallic plumbing material?

5. Acid-resistant pipe usually is an alloy of cast-iron and ____________.

6. A gate valve whose body and bonnet are held together by a “u” bolt clamp.


1. A device that discharges a predetermined quantity of water to fixtures for flushing purposes.

2. Pipes that are used to underground public sewers, house sewer and drains. It is made up of clay and also resistant to acids.

3. This type of trap is used in many localities where venting is not required by local ordinances. This device permits the waste to flow through it rapidly.


1. This policy creates, develops, maintain and improve the conditions under which man and nature can thrive in productive and enjoyable harmony with each other.

2. A decree instituting a water code, thereby reviving and consolidating the laws governing the ownership, utilization, development, conservation, etc. of water resources.


1. The type of drain used in building located in congested business areas.

2. Ball cock is to input;__________ is to output.

3. Downspout is the __________ portion of rain water conductor