問題一覧
1
A secondary pipeline in sewerage a common
sewer to which no other sewer is tributary is
called
Lateral
2
That pipe which conveys waste water and water
carried waste without fecal matter
Wadte pipe
3
A bacteria living or active in the absence of free
oxygen is called
Anaerobic
4
A vent for a single fixtures or battery of fixtures
which is connected into the same stack, is not
which the fixtures discharge
Unit vent
5
A vent which also serve as a drain is called
Wet vent
6
A method of installation not allowed in a lateral
to avoid pressure and retardation of flow of
waste water causing deposition of solid is
sharp curve
7
The sanitary drainage system for public health
reason, must discharge to
Public sewer system
8
What do you call that vents for fixtures intended
to ventilate the foul odors and remove air from
adjacent area?
Local vent
9
What happen when air comes into contact with
wastewater in the drainage system
Dragged along with the fixture along the system
10
What is that device use to prevent backflow
whereby air is admitted to the supply pipe
whenever a vacuum occur?
Vacuum breaker
11
Pipe materials used inside the buildings and
premises shall conform to standard specifications
set forth this organization?
American Society for Testing Materials (ASTM)
12
When heat is applied to water; molecular activity
intensified and such particle expand in itself,
followed by the change in behavior
Increases the volume
13
What is the prescribed color coding of piping
under Steam Division of a high pressure pipe
White
14
What is that controlled outlet in a pipeline used
to discharge water or drained the system
Blow-off
15
Which of the following is not a function of all
faucets?
Level control
16
What is the basic element of a cold water supply
in a building?
Riser run outs
17
What is that receptacle installed at corner wall
that collect rain water from a balcony
Scupper drain
18
What is that system of arrangement of venting so
installed that one vent will serve two traps?
Unit vent
19
What is the minimum size of fire hose outlet of an
interior wet standpipe?
38 mm dia
20
A building subdrain is located at what level?
Below the level of the public sewer
21
What is the term with reference to the load
producing effect on the plumbing system for
different kind of plumbing fixtures?
Fixture unit
22
Caulk joint shall be firmly packed with oakum or
hemp and poured with pure lead, what is that
depth of lead over oakum?
25 mm
23
What is the depth of the building sewer when
installed?
0.3 m
24
Which of the following is not a type of lavatory?
Reverse trap
25
The connection of sewer service line into a sewer
main is made by entering the sewer pipe at what
point?
At the top of the sewer main
26
What type of end connections which are used for
valves smaller than 2 inches in diameter?
Threaded
27
What do you call that point which is unobstructed
open edge of the fixture?
Rim
28
Normally, storm water sho
Ground water
29
Dry standpipes shall have sufficient strength to
withstand a water pressure of how much when
ready for service?
20 kg/cm2
30
PD 1095 prescribes that dry standpipe is required
for every building of how many floors?
4 storey or more
31
On most two-handle faucets, the stems:
Rotates clockwise & counterclockwise
32
Flush meter is another name for:
Flush valve
33
The water service is a pipe that extends from the
Water main to the water meter
34
In term of discharge, one fixture unit represent
the flow rate approximately:
7.48 gal
35
The area of hole of roof drain to effectively collect
and drain rain water in roof is:
2 x the area of drain pipe
36
The space between the liquid level line to the
inside top cover of septic tank is called:
Airspace
37
The trap provision required to restaurant and
other establishment where sewage covers large
amount of grease prior to discharge to sewer
Grease trap
38
It is the pipe extension of a solid or waste stack
above the highest horizontal drain connected to
the stack
Stack vent thru roof
39
It is the arrangement of venting so installed that
one vent will serve two traps?
Unit vent
40
It is pipe which convey only liquid waste free from
fecal matter
Wet vent
41
It is a portion of the vent pipe through which
liquid waste flow:
Wet vent
42
It is a loss of trap seal due to unequal atmospheric
pressure condition and due to rapid flows of
water thru the trap:
Siphonage
43
It is a loss of trap seal due to suspension of
foreign object such as string rugs or lint into the
trap seal extending over the outlet arm of the
trap:
Capillary attraction
44
The top cover and the manhole of a septic tank
usually extended above the surface of the ground
to overcome surface water infiltration
5 cm
45
It is a compartment in the septic tank for the
settlement of floating or suspended matters, sand
debris and any excessive amount of grease or oil
from sewage:
Sedimentation chamber
46
A septic tank is water tight receptacle for which
sewage is digested than a biological action mainly
by microorganism such as
Anaerobic bacteria
47
The retention period or the time for which
suspended matters in septic tank would settle
and stabilize is:
24 hrs
48
The soil branch must be slope at a grade so that
waste content is given a flow of pipe velocity to
assure a self-scouring condition and lessen the
possibility of seal loss stoppage and retarded
flow:
¼ inch per foot
49
The cold-water supply is delivered into the hot
water-tank by means of a boiler tube; this tube
has a hole within 6 inches from the top of the
tank, the purpose of which is to serve as:
dip tube
50
What vent pipe installation in the building which
has no connection whatsoever with the plumbing
fixture
Exhaust pipe
51
Water closets shall be computed as ____fixture
units when determining septic tank size
6
52
Galvanized wrought iron or galvanized steel pipe
shall not be used underground and shall be kept
at least ____ above ground.
152 mm
53
One fixture unit is equivalent to
1 cu.ft./min
54
For assembly places for public use, how many
water closets are required if the capacity is 115
males?
2
55
For assembly places for public use, how many
urinals are required if the capacity is 115
males?
2
56
There shall be a minimum of ______drinking
fountains per occupied floor in schools, theater,
auditoriums, dormitories, offices or public
building
1
57
Drains in gutters in public shower rooms shall be
spaced not more than___ apart
4.9 m
58
All shower compartments shall have a minimum
finished interior area ______sq.m
0.60 sq. m
59
Cast iron fitting up to and including 51mm in size,
when used in connection with potable water
piping shall be_____
Galvanized
60
Water pipes shall laid a minimum of ______
above the sewer or drainpipe
0.30 mm
61
No building water service pipe shall be less than
_____in diameter
19 mm
62
Shower head used in private has ___water supply
fixture unit
2
63
Clean-outs shall be provided at every ____ length
or a fraction thereof
15 m
64
Clean-out may be omitted on a horizontal drain
line less than ____in length
1.50 m
65
The minimum slope required for 102 mm
diameter pipe or larger drainage piping
1%
66
Vent opening shall terminate not less than ____
from any window, door or any opening
3.0 m
67
In hospital wards, 1 bath tub or shower shall be
provided per ____
20 patients
68
Lavatories not affected by side walls, with
effective opening not greater than 13 mm dia.
Has minimum air gap of _____
25 mm
69
Water supply wells shall be located at least
_______ from building sewer
15.2 m
70
Gate valve used in drainage work having a 102
mm diameter or larger shall have ____bodies
Cast iron
71
Manhole in septic tank shall be provided with
minimum dimension of _____
508 mm
72
Roof deck strainers shall have a total net inlet
area less than ______ times the area of the outlet
pipe to which the drain is connected.
2
73
Which of the following fitting is not
recommended to be used in the change of
direction in drainage line?
90 elbow
74
A private plumbing system is composed of a flush
tank water closet, a lavatory, a shower head and
faucet. What is the total FU (water supply)?
9
75
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
76
A pipe made from an alloy containing 85 percent
and 15 percent zinc and generally used in local
branch lines and in alteration to match existing
work.
Brass pipe
77
A small concrete receptacle between the septic
tank and the drain field in which lines of drain
tiles extends and which acts as surge tank to
distribute the flow of sewage equally to each line
of drain tiles
Distribution box
78
The least expensive but the noisiest water closet;
only small amount of standing water-susceptible
to fouling, staining and contamination.
Siphon washdown
79
A plumbing fixture used for washing the middle
part of the body, especially genitals. It is also
known as the Sitz Bath.
Bidet
80
Minimum trap diameter for laundry tub
38 mm
81
It is considered to be the most quiet, most
efficient and most sanitary water closet.
Siphon vortex
82
Minimum trap diameter for shower bath
51 mm
83
A receptacle attached to a plumbing system other
than a trap in which water or waste may be
collected for ultimate discharge into the plumbing
system
Fixture
84
Each shower receptor shall be constructed to
have a finished dam, curb or threshold of at least
_____ mm lower that the outside floor.
25.4 mm
85
A plumbing fixture usually located in the
operating room in a hospital to enable personnel
to scrub their hands prior to a surgical procedure;
the hot and cold water supply is activated by a
knee-action mixing valve or by wrist or pedal
control.
Scrub sink
86
This is less esthetic than aeration but more
certain oxidation process. It is commolly used in
cooling lower treatment and in addition
ozonation has very wide range of treatment
application
Ozonation
87
A pipe within the structure or on the premises
which conveys water from the water service pipe
or meter to the point of utilization
Water distribution pipe
88
What is the size of downspout if the rainfall
intensity is 100 mm Ɵ(4”) on a 1200 m2
deck roof
150 mm dia
89
What is the size of horizontal rainwater pipe with
2% slope if the max. rainfall is 100 mm on a 206
m
2
100 mm
90
How many lavatory shall be installed in a school
with 240 male students
6
91
What is the size of downspout if the rainfall
intensity is 100 mm (4”) if the deck roof is 435
mm
2
100 mm dia
92
What is required when cast iron pipe and fittings
of different sizes are to be joined or connected?
An increaser or reducer
93
What is the fixture unit of 18 storey dormitory
building with 6 bathroom group on every floor
with class 2
756
94
What is the recommended size of service pipe
approved by MWSS for a 2 storey residential
house?
¾” Ɵ - 19 mm
95
what is the cause of object desirable taste and
odor of water
algae
96
How does the safety features of a service hot
water system works?
Automatically
97
What is the minimum size of water supply for
water closet flush valve type?
1 in
98
How do you measure the rainfall intensity?
Inches/ hr
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44問 • 2年前問題一覧
1
A secondary pipeline in sewerage a common
sewer to which no other sewer is tributary is
called
Lateral
2
That pipe which conveys waste water and water
carried waste without fecal matter
Wadte pipe
3
A bacteria living or active in the absence of free
oxygen is called
Anaerobic
4
A vent for a single fixtures or battery of fixtures
which is connected into the same stack, is not
which the fixtures discharge
Unit vent
5
A vent which also serve as a drain is called
Wet vent
6
A method of installation not allowed in a lateral
to avoid pressure and retardation of flow of
waste water causing deposition of solid is
sharp curve
7
The sanitary drainage system for public health
reason, must discharge to
Public sewer system
8
What do you call that vents for fixtures intended
to ventilate the foul odors and remove air from
adjacent area?
Local vent
9
What happen when air comes into contact with
wastewater in the drainage system
Dragged along with the fixture along the system
10
What is that device use to prevent backflow
whereby air is admitted to the supply pipe
whenever a vacuum occur?
Vacuum breaker
11
Pipe materials used inside the buildings and
premises shall conform to standard specifications
set forth this organization?
American Society for Testing Materials (ASTM)
12
When heat is applied to water; molecular activity
intensified and such particle expand in itself,
followed by the change in behavior
Increases the volume
13
What is the prescribed color coding of piping
under Steam Division of a high pressure pipe
White
14
What is that controlled outlet in a pipeline used
to discharge water or drained the system
Blow-off
15
Which of the following is not a function of all
faucets?
Level control
16
What is the basic element of a cold water supply
in a building?
Riser run outs
17
What is that receptacle installed at corner wall
that collect rain water from a balcony
Scupper drain
18
What is that system of arrangement of venting so
installed that one vent will serve two traps?
Unit vent
19
What is the minimum size of fire hose outlet of an
interior wet standpipe?
38 mm dia
20
A building subdrain is located at what level?
Below the level of the public sewer
21
What is the term with reference to the load
producing effect on the plumbing system for
different kind of plumbing fixtures?
Fixture unit
22
Caulk joint shall be firmly packed with oakum or
hemp and poured with pure lead, what is that
depth of lead over oakum?
25 mm
23
What is the depth of the building sewer when
installed?
0.3 m
24
Which of the following is not a type of lavatory?
Reverse trap
25
The connection of sewer service line into a sewer
main is made by entering the sewer pipe at what
point?
At the top of the sewer main
26
What type of end connections which are used for
valves smaller than 2 inches in diameter?
Threaded
27
What do you call that point which is unobstructed
open edge of the fixture?
Rim
28
Normally, storm water sho
Ground water
29
Dry standpipes shall have sufficient strength to
withstand a water pressure of how much when
ready for service?
20 kg/cm2
30
PD 1095 prescribes that dry standpipe is required
for every building of how many floors?
4 storey or more
31
On most two-handle faucets, the stems:
Rotates clockwise & counterclockwise
32
Flush meter is another name for:
Flush valve
33
The water service is a pipe that extends from the
Water main to the water meter
34
In term of discharge, one fixture unit represent
the flow rate approximately:
7.48 gal
35
The area of hole of roof drain to effectively collect
and drain rain water in roof is:
2 x the area of drain pipe
36
The space between the liquid level line to the
inside top cover of septic tank is called:
Airspace
37
The trap provision required to restaurant and
other establishment where sewage covers large
amount of grease prior to discharge to sewer
Grease trap
38
It is the pipe extension of a solid or waste stack
above the highest horizontal drain connected to
the stack
Stack vent thru roof
39
It is the arrangement of venting so installed that
one vent will serve two traps?
Unit vent
40
It is pipe which convey only liquid waste free from
fecal matter
Wet vent
41
It is a portion of the vent pipe through which
liquid waste flow:
Wet vent
42
It is a loss of trap seal due to unequal atmospheric
pressure condition and due to rapid flows of
water thru the trap:
Siphonage
43
It is a loss of trap seal due to suspension of
foreign object such as string rugs or lint into the
trap seal extending over the outlet arm of the
trap:
Capillary attraction
44
The top cover and the manhole of a septic tank
usually extended above the surface of the ground
to overcome surface water infiltration
5 cm
45
It is a compartment in the septic tank for the
settlement of floating or suspended matters, sand
debris and any excessive amount of grease or oil
from sewage:
Sedimentation chamber
46
A septic tank is water tight receptacle for which
sewage is digested than a biological action mainly
by microorganism such as
Anaerobic bacteria
47
The retention period or the time for which
suspended matters in septic tank would settle
and stabilize is:
24 hrs
48
The soil branch must be slope at a grade so that
waste content is given a flow of pipe velocity to
assure a self-scouring condition and lessen the
possibility of seal loss stoppage and retarded
flow:
¼ inch per foot
49
The cold-water supply is delivered into the hot
water-tank by means of a boiler tube; this tube
has a hole within 6 inches from the top of the
tank, the purpose of which is to serve as:
dip tube
50
What vent pipe installation in the building which
has no connection whatsoever with the plumbing
fixture
Exhaust pipe
51
Water closets shall be computed as ____fixture
units when determining septic tank size
6
52
Galvanized wrought iron or galvanized steel pipe
shall not be used underground and shall be kept
at least ____ above ground.
152 mm
53
One fixture unit is equivalent to
1 cu.ft./min
54
For assembly places for public use, how many
water closets are required if the capacity is 115
males?
2
55
For assembly places for public use, how many
urinals are required if the capacity is 115
males?
2
56
There shall be a minimum of ______drinking
fountains per occupied floor in schools, theater,
auditoriums, dormitories, offices or public
building
1
57
Drains in gutters in public shower rooms shall be
spaced not more than___ apart
4.9 m
58
All shower compartments shall have a minimum
finished interior area ______sq.m
0.60 sq. m
59
Cast iron fitting up to and including 51mm in size,
when used in connection with potable water
piping shall be_____
Galvanized
60
Water pipes shall laid a minimum of ______
above the sewer or drainpipe
0.30 mm
61
No building water service pipe shall be less than
_____in diameter
19 mm
62
Shower head used in private has ___water supply
fixture unit
2
63
Clean-outs shall be provided at every ____ length
or a fraction thereof
15 m
64
Clean-out may be omitted on a horizontal drain
line less than ____in length
1.50 m
65
The minimum slope required for 102 mm
diameter pipe or larger drainage piping
1%
66
Vent opening shall terminate not less than ____
from any window, door or any opening
3.0 m
67
In hospital wards, 1 bath tub or shower shall be
provided per ____
20 patients
68
Lavatories not affected by side walls, with
effective opening not greater than 13 mm dia.
Has minimum air gap of _____
25 mm
69
Water supply wells shall be located at least
_______ from building sewer
15.2 m
70
Gate valve used in drainage work having a 102
mm diameter or larger shall have ____bodies
Cast iron
71
Manhole in septic tank shall be provided with
minimum dimension of _____
508 mm
72
Roof deck strainers shall have a total net inlet
area less than ______ times the area of the outlet
pipe to which the drain is connected.
2
73
Which of the following fitting is not
recommended to be used in the change of
direction in drainage line?
90 elbow
74
A private plumbing system is composed of a flush
tank water closet, a lavatory, a shower head and
faucet. What is the total FU (water supply)?
9
75
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
76
A pipe made from an alloy containing 85 percent
and 15 percent zinc and generally used in local
branch lines and in alteration to match existing
work.
Brass pipe
77
A small concrete receptacle between the septic
tank and the drain field in which lines of drain
tiles extends and which acts as surge tank to
distribute the flow of sewage equally to each line
of drain tiles
Distribution box
78
The least expensive but the noisiest water closet;
only small amount of standing water-susceptible
to fouling, staining and contamination.
Siphon washdown
79
A plumbing fixture used for washing the middle
part of the body, especially genitals. It is also
known as the Sitz Bath.
Bidet
80
Minimum trap diameter for laundry tub
38 mm
81
It is considered to be the most quiet, most
efficient and most sanitary water closet.
Siphon vortex
82
Minimum trap diameter for shower bath
51 mm
83
A receptacle attached to a plumbing system other
than a trap in which water or waste may be
collected for ultimate discharge into the plumbing
system
Fixture
84
Each shower receptor shall be constructed to
have a finished dam, curb or threshold of at least
_____ mm lower that the outside floor.
25.4 mm
85
A plumbing fixture usually located in the
operating room in a hospital to enable personnel
to scrub their hands prior to a surgical procedure;
the hot and cold water supply is activated by a
knee-action mixing valve or by wrist or pedal
control.
Scrub sink
86
This is less esthetic than aeration but more
certain oxidation process. It is commolly used in
cooling lower treatment and in addition
ozonation has very wide range of treatment
application
Ozonation
87
A pipe within the structure or on the premises
which conveys water from the water service pipe
or meter to the point of utilization
Water distribution pipe
88
What is the size of downspout if the rainfall
intensity is 100 mm Ɵ(4”) on a 1200 m2
deck roof
150 mm dia
89
What is the size of horizontal rainwater pipe with
2% slope if the max. rainfall is 100 mm on a 206
m
2
100 mm
90
How many lavatory shall be installed in a school
with 240 male students
6
91
What is the size of downspout if the rainfall
intensity is 100 mm (4”) if the deck roof is 435
mm
2
100 mm dia
92
What is required when cast iron pipe and fittings
of different sizes are to be joined or connected?
An increaser or reducer
93
What is the fixture unit of 18 storey dormitory
building with 6 bathroom group on every floor
with class 2
756
94
What is the recommended size of service pipe
approved by MWSS for a 2 storey residential
house?
¾” Ɵ - 19 mm
95
what is the cause of object desirable taste and
odor of water
algae
96
How does the safety features of a service hot
water system works?
Automatically
97
What is the minimum size of water supply for
water closet flush valve type?
1 in
98
How do you measure the rainfall intensity?
Inches/ hr