Refresher SPDI 1

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問題一覧

Property of a fluid whereby its own molecules are united or attracted to each other.

Cohesion

The recommended minimum shower head height from the floor for emergency showers.

2.1 m

According to NPCP, at least _____ of the vertical stacks in the plumbing system must be extended full size through the roof.

Medical gas tube comes in _____________ colors.

green or blue

A pipe fitting, which is threaded on both the inside and the outside so that it can be used to connect two pipes (or other fittings) of different sizes.

Bushing

What is the suitable material for cutting cast iron?

Soil Pipe Cutter

ASTM of PVC Sewer Pipe and Fittings

ASTM D2729

Civil works drawing that shows all the major features and structures on a piece of property. It may display the utility blocks, process blocks, roads, and building blocks for a potential project.

Plot Plan

It is used for measuring pore water pressures. It is also used to measure underground water pressure

Piezometer

It is an alarming device which produces an audible alarm tone when electric energy is applied on it.

Bell

A substance that deforms continuously under the application of a shear force. It cannot sustain a shear force at rest.

Fluid

Type of gas vent for venting listed gas-fired vented wall furnaces or gas-fired vented recessed heaters.

Type BW vent

What happens when you connect pump in series?

Same GPM

Taste or odor in water, which is caused by organic matter such as algae can be corrected by ________.

Filtration through activated carbon

Applied to a specific disease when it normally prevails in locality and does not fluctuate markedly from the normal expected emergence in the community.

Endemic

Civil works drawing that shows all the major features and structures on a piece of property. It may display the utility blocks, process blocks, roads, and building blocks for a potential project.

Plot Plan

It is used for measuring pore water pressures. It is also used to measure underground water pressure

Piezometer

It is an alarming device which produces an audible alarm tone when electric energy is applied on it.

Bell

A substance that deforms continuously under the application of a shear force. It cannot sustain a shear force at rest.

Fluid

Type of gas vent for venting listed gas-fired vented wall furnaces or gas-fired vented recessed heaters.

Type BW vent

What happens when you connect pump in series?

Same GPM

Taste or odor in water, which is caused by organic matter such as algae can be corrected by _______.

Filtration through activated carbon

Applied to a specific disease when it normally prevails in locality and does not fluctuate markedly from the normal expected emergence in the community.

Endemic

The horizontal transport of heat in the atmosphere.

Advection

A comprehensive term, including all constructions for collection, transportation, pumping, treatment and final disposition of sewage.

Sewerage

The maximum vertical depth of liquid that a trap will retain, measured between the crown weir and the top of the dip of the trap.

Trap seal

In a gas water heater, the purpose of the small hole drilled in the dip tube near the top is ____________.

to break siphon action

Other than cracking a quiet and peaceful house, what is prevented when water hammer will be eliminated?

Pipe joint damage

Chemical not found in drain cleaners

Hydrogen sulfate

What is the coefficient of roughness of Galvanized Iron?

0.016

Which of the following is limited to operate, tend or maintain, or be in-charge of the operation, tending or maintenance of any mechanical works, projects, plant of up to 300 kW?

CPM

This type of apparatus are automatic and require no motor since they depend for operation upon water hammer that is surging back and forth in a pipe when suddenly brought to rest.

hydraulic ram

The presence of bicarbonates of calcium and magnesium produces a condition in the water called ____________.

Temporary hardness

In disinfecting potable water system, the system or part thereof shall be filled with water/chlorine solution containing not less than _________ of chlorine, and the system or part thereof shall be valved off and allowed to stand for 24 hours

50 mg/L

A wall designed to prevent the spread of fire, having a fire resistance rating of not less than four (4) hours with sufficient structural stability to remain standing even if construction on either side collapses under fire conditions.

Fire Wall

Copper has several alloys such as brass that are used as a plumbing material. What is the principal alloy found in brass?

Zinc

The chemical component for water softening

Zeolite

Underground piping shall be in accordance with ___________ for installation of standpipes.

NFPA 24

The oldest brand of porcelain kitchen sink.

American Standard

A septic tank has an effective capacity of 20,000 liters. Find the approximate volume of the leaching chamber.

6,600 liters

For trap arms ___________ in diameter and larger, the change of direction not exceeding 22 1/2 degrees, no cleanout is required.

76 mm

Term for the rainwater drained from roof gutters and downspouts.

Storm water

A pipe support that's designed to control movement and stop a pipe from shifting in three dimensions

Pipe Anchor

A device that moves water from your basement to the outside of your home

Sump Pump

How many water closets are required for 350 males in an assembly place for public use?

An acceptable fitting to be used when connecting horizontal drain line to another horizontal drain line.

Combination Wye and 1/8 Bend

Determine the appropriate size of a stack which serves a total fixture unit of 600.

5”

An instrument used to measure the amount of water vapor in air, in soil, or in confined spaces

hygrometer

Heat transfer occurs through electromagnetic waves without involving particles.

Radiation

The stage where solids form larger clusters, or flocs to be removed from water.

Flocculation

One of the oldest plumbing materials used by Egyptians, Greeks and roman builders. This is highly resistant to acid and suitable for underground installation.

Lead Pipe

The volume displaced per stroke by a plunger is 3 liters. The total volume of liquid displaced is 500 cu.m. What is the approximate number of strokes performed by the plunger?

166,700

Distance of Septic Tank to Water Supply Wells

15.2 m

Standard for PE Plastic Pipe

ASTM D3035

What is being submitted to the local government unit after the completion of construction?

As-built Plans

Backwater valves are required __________________________.

in locations where fixtures are subject to backpressure

The pipe that lets fresh water enter the water heater through the top of the tank.

Dip Tube

This is usually the last stage of water treatment.

Disinfection

What is the diameter of a dry standpipe with 3-way siamese fire department connection

125 mm

What is the thickness of the signage of toilets?

7.5 mm

The following gases are found in septic tank except for one.

Carbon Sulfide

What fitting will be used in a water supply line if it is used to join two pipes of different materials that would eventually generate corrosion?

Dielectric Union

A well that doesn't require a pump to bring water to the surface; this occurs when there is enough pressure in the aquifer.

Artesian well

This system is provided with 64 mm (2 ½ in.) hose connections for full-scale firefighting.

Class I System

This type of globe valve has a pressure-tight bearing between the disc and the seat recommended for cold water and any temperature service.

Conventional disc

What is the height of the Dry Standpipe outlet above the floor of each storey?

61 cm to 122 cm

Discharge pipes from pressure tanks shall extend _________ from and into the bottom of such tanks.

5 cm

The minimum retention period or the time for which suspended matters in septic tank would settle and stabilize.

24 hours

Fixture connections between drainage pipes and water closet shall be made with _______.

Flanges

It is the single sloping drain from the base of stack to its junction with the main building drain

Primary branch

PD 1096 prescribes that dry standpipe is required for every building of how many floors?

4 storeys or more

Plumbing fixtures classified as Class 1 are intended for _____________.

Apartment

A water closet that does not have a flushing mechanism.

Dry toilet

It is considered to be the most quiet, most efficient and most sanitary water closet.

Siphon Vortex

What is that receptacle installed at corner wall that collect rain water from a balcony?

Scupper Drain

A type of water closet that is noisy but highly efficient. Strong jet into up leg forces contents out. Use only with flush valve, requires higher pressure.

Blowout

What can be seen in the x-axis of a pump curve?

flow rate

The angle of gooseneck from water main is usually _________.

45 degrees

The DAO 2021-19 covers the updating of the Water Quality Guidelines and general Effluent Standards of 2016 for the following parameters, except ____________.

Nitrous Phosphate

What is the standard specification for seamless copper water tube?

ASTM B88

Which of the following is not a fixture?

Water Closet

Spring water is not always free from contamination.

Yes

This type of spring develop in areas where the downward flow of groundwater is prevented by an underlying impermeable layer of rock.

Stratum springs

A water produced by distillation, deionization, reverse osmosis, or other suitable process.

Purified water

The on-going installation of the plumbing system or any part thereof which has been installed prior to the effectivity of the Code.

Existing Work

A tool used for installation of hubless cast iron soil pipe.

Torque Wrench

What is the diameter of gutter with slope of 1%, whose roof area it serves is 130 sqm? The rainfall intensity in the area is 102 mm.

152 mm

What is not an advantage of constant water pressure system?

Resistant to water outages

Which of the following is not a purification process?

Precipitation

The chemical content for dry chemical fire extinguisher.

Monoammonium Phosphate

An oxygen cylinder of volume 2 cu.ft has a pressure of 2000 psig and is ano 4 at 21°C, determine the mass.

10.29 kg

Standard Specification for Cast Iron Soil Pipe and Fittings

ASTM A74

This type of pump utilizes a pair of impellers arranged in a back-to-back configuration, and the water discharged from the impeller is directed into a spiral casing.

Double Suction Pump

This system uses one tank for all the treatment steps, rather than using different equipment for each step in the process.

SBR

A type of nipple where a small amount of pipe exists between the threads.

shoulder or short nipple

Where surface water in a perennial stream does not meet the water demand in dry weather, _____________ can constitute a good source of water

Infiltration galleries

Maximum hot water temperature for shower against scalding

120 F

This material is not used in lavatories as water becomes black or brown.

Iron

A liquid drain cleaner has a pH Level categorized as ______________.

Basic

100

Calculate the gradient required for a 100 mm diameter drain to run half-full at an average velocity flow of 1.2 m/sec. (Take C=55).

1 in 52.5m would be required.

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