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plumbing code Flashcards

1
Q

An act to regulate the trade of Master Plumber.

A

RA 1378

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2
Q

What do you call to this device that is being used to circulate
hot water to the plumbing system?

a. overhead feed
b. up feed
c. pump circuit system
d. hot water recirculating pump

A

hot water recirculating pump

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3
Q

Shall not act in an unprofessional manner and demand any remuneration other than his/her original charges except for additional services not covered in the basic contract.

a. Code of Ethics No. 1
b. Code of Ethics No. 3
c. Code of Ethics No. 5
d. Code of Ethics No. 7

A

Code of Ethics No. 1

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4
Q

What is the minimum number of LAV for 200 males? (Assembly Places - Theatres, Auditoriums, Convention Halls, etc. - for permanent
employee use)

A

5

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5
Q

Shall not advertise in self-laudatory language, act in any manner an engage in any practice which tend to bring dishonor to the
dignity of the Registered Master Plumber, the National Master Plumbers association of the Philippines (NAMPAP) and the plumbing
profession.

a. Code of Ethics No. 1
b. Code of Ethics No. 3
c. Code of Ethics No. 5
d. Code of Ethics No. 7

A

Code of Ethics No. 7

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6
Q

It shall be unlawful for any person, firm or corporation, whether acting as principal, servant, agent or employee, to do or cause to be done any plumbing or drainage work for which a permit is required without securing prior permit from the Office of the Building Official having jurisdiction under the _____.

a. DPWH
b. DILG
c. City Mayors
d. All of the above

A

All of the above

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7
Q

The invert of the inlet pipe shall be at a level not less than ____ above the invert of the outlet pipe.

a. 32 mm
b. 38 mm
c. 40.8 mm
d. 50.8 mm

A

50.8 mm

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8
Q

The inlet compartment of any septic tank shall be _____ of the total capacity of the tank, nor less than 2.0 m3 liquid capacity.

A

not less than two-thirds

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9
Q

The pipe or tubing that connects the outlet of a plumbing fixture to the trap.

a. trap
b. trap arm
c. tailpiece
d. outlet

A

tailpiece

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10
Q

Shall not allow the use of his/her license as registered Master
Plumber for a fee to an unlicensed Master Plumber in plumbing works without his/her personal supervision.

a. Code of Ethics No. 1
b. Code of Ethics No. 3
c. Code of Ethics No. 5
d. Code of Ethics No. 7

A

Code of Ethics No. 5

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11
Q

What is the minimum width of the inlet compartment of a septic tank?

a. 600mm
b. 750mm
c. 900mm
d. 1500mm

A

900mm

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12
Q

It refers to the resistance delivered by streaming water with fittings and inside surface of the pipe.

a. force
b. friction
c. pressure
d. velocity

A

Friction

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13
Q

Consists of two independently acting internally loaded check
valves, a differential pressure relief valve, four properly located test cocks and two isolation gate valves.

A

RP

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14
Q

Distribution boxes shall be designed to insure ____ flow and shall be installed on a level concrete slab in natural or compacted soil.

a. equal
b. less
c. more
d. none of the above

A

Equal

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15
Q

To receive the discharge from aeration, what is installed at the bottom portion of the soil stack where the house drain is connected?

a. aerator
b. deaerator
c. Sovent system
d. ventilation

A

deaerator

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16
Q

Airgap less than 25 mm shall only be approved as a permanent part of a listed assembly that has been tested under actual backflow conditions with vacuums of from

a. 0 to 65 cm. of mercury
b. 0 to 36 cm. of mercury
c. 0 to 60 cm. of mercury
d. 0 to 63.5 cm. of mercury

A

0 to 63.5 cm. of mercury

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17
Q

Fixture outlets shall not be connected to the horizontal excreta drainage piping system within how many meters from any vertical to horizontal change of direction of a stack containing suds-
producing fixtures.

a. 3.0m
b. 2.4m
c. 1.2m
d. 1.5m

A

2.4 m

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18
Q

It is a piece of a framework that expels sewage and greywater from a building and controls pneumatic stress in the waste-framework channels to help free stream.

a. Sanitary sewer system
b. Storm sewer
c. DWV system
d. Vent system

A

DWV system

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19
Q

Where two or more drain lines are installed, an approved _____ of
sufficient size to receive lateral lines shall be installed at the head of each disposal field.

a. distribution box
b. seepage pit
c. septic tank
d. disposal field

A

distribution box

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20
Q

A hose connection with two-gated outlets permitting two connections of the same or smaller coupling diameter to be taken from a single supply line.

a. Wye
b. Tee
c. Sanitary tee
d. 1/8 bend

A

Wye

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21
Q

All sections of a plumbing drainage and vent system must be tested with

a. water
b. any liquid
c. air or water
d. air

A

air or water

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22
Q

The inverts of all outlets shall be level and the invert of the inlet shall be at least ____ above the outlets.

a. 25.4 mm
b. 50.8 mm
c. 101.6 mm
d. 104.6 mm

A

50.8 mm

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23
Q

That portion of a building included between the upper surface of any floor and the upper surface of the floor next above.

a. Branch
b. Storey
c. Riser
d. Stack

A

Storey

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24
Q

The requirements for installation of grease interceptors exclude

a. fast-food restaurants
b. apartment buildings with up to 100 dwelling units
c. hospitals
d. hotels

A

apartment buildings with up to 100 dwelling units

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25
Q

Tube made of plastic material and colored black. The cross-sectional shape is normally oval and is denoted by its outside diameter or O.D. Normally used as water service connection from main to meter.

a. Polyethylene
b. Polybutylene
c. PVC
d. PVDF

A

Polybutylene

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26
Q

A valve actuated by stem screw, and hand wheel, suited on installation that calls for throttling.

a. foot valve
b. gate valve
c. angle valve
d. globe valve

A

globe valve

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27
Q

The 22 basic Principles of master plumbing is enumerated in what section of RA 1378?

A

Section 5

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28
Q

The pressure existing without any flow motion.

A

Static pressure

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29
Q

What is the minimum of number of water closet required at office with 20 persons?

A

1

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30
Q

What is the minimum number of WC for 100 males? (Assembly Places - Theatres, Auditoriums, Convention Halls, etc. - for public use)

A

1

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31
Q

What is the minimum pressure used in water test for drainage system?

A

10 ft head

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32
Q

All water supply, drainage, venting system and all fixtures and their traps complete with their connection.

A

plumbing system

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33
Q

It is the required pressure to test water supply system.

A

150% of used water pressure

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34
Q

Inlet and outlet pipe fittings or baffles, and compartment partitions shall have a free vent area _______ of the house sewer or private sewer discharging therein to provide free ventilation above the water surface from the disposal field or seepage pit
through the septic tank, house sewer, and stack to the outer air.

a. equal to the required cross-sectional area
b. 1.5 times the required cross-sectional area
c. twice the required cross-sectional area
d. 2 1⁄2 times the required cross-sectional area

A

equal to the required cross-
sectional area

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35
Q

What is the slope of a waste pipe with a minimum size of 3”
horizontal pipe?

A

1⁄4 inch per foot

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36
Q

What is the minimum size of water supply pipe to a lavatory?

A

10 mm

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37
Q

A branch vent that performs its functions for two (2) or more
traps.

A

group vent

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38
Q

On what date the National Plumbing Code of the Philippines was approved?

A

January 28, 1959

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39
Q

What is the minimum pressure required to test water supply system?

A

150% of used water pressure

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40
Q

The part of the plumbing system extending 0.6 m from the inner face of the foundation wall of the building to the junction with another sewer

a. house sewer
b. storm sewer
c. sanitary sewer
d. building drain

A

house sewer

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41
Q

What is the minimum size of p-trap for floor drain?

A

2”

42
Q

Allowing for friction and other pressure loss the available water
pressure for fixture is ____________.

A

15 psi

43
Q

What is the maximum fixture unit loading allowed on 51-inch waste
stack?

A

sixteen

44
Q

That part of plumbing system extending from point 0.6-m of the
inner face of the foundation wall of building to the junction with
another sewer.

a. house sewer
b. storm sewer
c. sanitary sewer
d. building drain

A

house sewer

45
Q

The drainage system or any part thereof shall not be covered until

a. After a plumbing inspector has been called
b. It has been tested
c. It has been inspected
d. It has been approved

A

It has been approved

46
Q

Cast iron piping is 10 ft length installed horizontally, shall be
supported at intervals of not more than ______.

A

10 ft

47
Q

The air test for a plumbing drainage and vent system shall be made by attaching the air compressor or other test apparatus to

a. The lowest fixture outlet available
b. The highest vent opening
c. Any suitable opening
d. A dishwasher waste opening

A

Any suitable opening

48
Q

The waste pipe from a domestic dishwashing machine connected to a food-waste disposer unit must have a/an _______.

a. Soft-seat check valve
b. Approved air-gap fitting
c. Backflow preventer valve
d. Nonrising stem gate valve

A

Approved air-gap fitting

49
Q

The drainage pipe running from outside a buildings foundation to
the main sewer.

A

Sewer

50
Q

To ensure effectiveness, the wastes entering the grease
interceptor must not exceed the manufacturer’s rated capacity. For this reason, a ______ must be installed.

A

flow control

51
Q

A freestanding drinking fountain may connect to the drainage system of a building _________.

a. by using an approved air-gap fitting
b. by an indirect waste method
c. through an individual p-trap only
d. provided the waste outlet is no more than 10 feet from a vent

A

by an indirect waste method

52
Q

Is a device located at the bottom of the tank for the purpose of flushing water closet and similar fixtures

A

Flush valve

53
Q

The scope of plumbing practice is enumerated in what section of
the Plumbing Law?

A

Section 2

54
Q

Joints in lead pans or liners shall be ______.

A

burned

55
Q

The lowest portion of the interior part of any pipe or conduit that is not vertical

A

Invert

56
Q

Where there is exposure to skin contamination with poisonous,
infectious, or irritating materials, provide one lavatory for

A

each five persons

57
Q

The side walls shall extend at least ___ above the liquid depth.

A

228.6 mm

58
Q

Any joint or seam obtained by the joining of metal parts in a plastic molten state.

a. welded joint
b. seam
c. both a & b
d. none of the above

A

both a & b

59
Q

Joints in copper pans or liners shall be ______.

a. Soldered
b. Brazed
c. either a or b
d. neither

A

either a or b

60
Q

All whirlpool bathtubs shall comply with the following
requirements, except

a. a removable panel of sufficient dimension shall be provided for
access to the pump
b. the circulation pump shall be located below the crown weir of
the trap
c. the pump and the circulation piping shall be self-draining to
minimize water retention
d. suction fittings on whirlpool bathtubs shall comply with the
listed standards

A

the circulation pump shall
be located below the crown
weir of the trap

61
Q

A baffle type fitting shall have the equivalent cross-sectional area of the connecting sewer pipe and not less than a ____ horizontal dimension when measured at the inlet and outlet pipe inverts.

A

106.6 mm

62
Q

Horizontally installed piping must be supported at sufficiently close intervals to ________.

A

prevent sagging

63
Q

All piping installed in corrosive type material shall be ________.

A

protected properly

64
Q

A trap depending on movable parts to retain its seal may _______.

A

not be used under any
circumstances

65
Q

What do you call to the combination of two elements, hydrogen and oxygen?

A

water

66
Q

What is the maximum distance allowed for the trap of the floor
drain to be placed below the finished floor line to facilitate
cleaning in case of line trouble?

A

600 mm

67
Q

Equipment which includes all valves and controls used in the
plumbing system which are required to be accessible or readily accessible.

A

Regulating Equipment

68
Q

The inlet and outlet pipe or baffle shall extend _____ above and
at least 304.8 mm below the water surface.

A

101.6 mm

69
Q

Distribution boxes shall be coated on the inside with a ______ or
other approved method acceptable to the Administrative Authority.

A

bituminous coating

70
Q

The size of a trap arm may change direction without the use of a cleanout when such direction does not exceed 90 degrees.

A

Less than 76mm diameter

71
Q

Cleanouts on the seal of a trap are prohibited on ________.

A

Stall shower traps

72
Q

Any part of a piping system that extends horizontally at an approved grade, with or without vertical extensions from the main to plumbing fixtures.

A

Branch

73
Q

Any part of a drainage system that extends horizontally at a slope from a soil or waste stack, with or without lateral or vertical
extensions, on two or more floors.

A

Horizontal branch

74
Q

Satisfactory hanger which supports any piping must be

A

sufficient strength

75
Q

When floor drainage is required for a cold storage room used for
storing or holding food or drink, the drain must be connected to
the sanitary drainage system through a

A

indirect waste

76
Q

Who shall appoint the Board of Examiners for Master Plumber?

A

President of the Philippines

77
Q

When provided with water outlets for such space, a 610 mm width of wash sink or 457 mm diameter of a circular basin, shall be _____.

A

considered equivalent to one
lavatory

78
Q

What is the urinal per male ratio for principal worship places?

A

1 per 150

79
Q

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

A

sewerage or sewerage works

80
Q

________ is a device designed and installed to separate and retain
deleterious, hazardous or undesirable matters from normal wastes and permits normal sewage or liquid wastes to discharge into the disposal terminal by gravity.

a. Interceptor
b. Clarifier
c. Both a & b
d. Grease trap

A

Both a & b

81
Q

______ for “Sacrarium” cupsink at church altar and Baptistries
font outlet shall discharge direct to the ground and not connected
to the sanitary drainage system.

A

wastewater drain

82
Q

What is the minimum thickness of copper pans or liners?

A

Gauge No. 24 B & S or 0.5 mm
thick

83
Q

What is the length of the pipe that should be added on the top of
the highest fixture level to eliminate water hammer?

A

300 mm

84
Q

The cover of the septic tank shall be at least ____ above the back-
vent openings.

A

50.8 mm

85
Q

The vertical distance from the “Grade Line” to the highest point
of the coping of a flat roof or to the top line of a mansard roof
or to the average height of the highest gable of a pitch or hip-
roof.

A

Height of building

86
Q

It refers to the pressure range measured over a period of 24 hours.

A

normal pressure

87
Q

A water closet consisting of a continuous trough containing water. The trough extends under two or more adjacent seats. Prohibited by health authorities for permanent installations.

A

Latrine

88
Q

What is the maximum interval of vertical supports for lead piping?

A

1.2 m

89
Q

What is the water demand for shower head?

A

2.5 gpm

90
Q

The lead shall be caulked thoroughly at the inside and outside edges of the joint. After caulking, the finished joint shall not extend more than ___ below the rim of the hub.

A

3.2mm

91
Q

ln addition to the required incised marking, all hard-drawn copper
tubing shall be marked by means of a continuous and indelibly
colored stripe at least ___ in width.

A

6.4 mm

92
Q

The minimum wall thickness of a steel septic tank that can be
protected from corrosion internally and externally is

A

Ga. 12

93
Q

What is the standard slope of the building drain?

A

2%

94
Q

Rainwater piping located on the exterior of a building using
galvanized sheet metal shall not be less than ______.

A

26 Ga

95
Q

Two (2) walls opposite of differing heights - add _______ of wall
area above top of lower wall to the roof area.

A

50%

96
Q

A valve opened and closed by the fall and rise, respectively of an
attached ball floating on the surface of the liquid.

A

Ball cock

97
Q

A flushometer valve is a device used to

A

Discharge a predetermined
quantity of water

98
Q

The maximum height above the trap for a clothes washer standpipe receptor is ____.

A

0.80 m

99
Q

Expansion joints shall be acceptable in piping, except

A

vents

100
Q

A metallic sleeve, calked or join to opening in a pipe, into which
a plug is screwed that can be removed for cleaning or examining the interior of the pipe.

A

ferrule

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