問題一覧
1
What do you call this valve installed at the suction
line of pump to prevent the loss of prime of the
pump
Foot valve
2
Polyvinyl Chloride (PVC) pipes used for drain
waste vent (DWV) are manufactures based on the
standard set by this organization
ASTM
3
Water for domestic use comes from these sources
except
Sea water
4
What is the setting height from the floor for wall
hung lavatory
22"
5
How much is the plumbing permit fee for one
lavatory in excess of one unit minimum required?
P 6.00
6
The recommended hot water supply to an hotel
washing machine is?
10 GPH
7
Gasses not found in sewer air of septic tank are
Chloride
8
What is the setting height from the floor for a
water supply inlet of flush tank water closet
8"
9
A male thread fitting with square head used for
closing another female fitting is called
Plug
10
The recommended hot water supply to a hotel
lavatory
5 GPH
11
Copper pipes are sized
1/8 bigger than their inside diameter
12
To boost the water pressure of hot water, use
Circulating pump
13
Which type of wrench is used to assemble hubless
joint
Torque wrench
14
When silt and dirt is removed from water, the
process is called
Filtration
15
The recommended hot water supply is a
therapeutic bath?
75 GPH
16
What is the setting distance from the floor for a
bidet waste drain outlet?
12"
17
Electric water heaters are manufactured based on
the standard set by this organization.
UL
18
Plumbing pipe color coded in Aqua-blue stripe or
bar is identified as
Potable water pipe
19
Stainless steel plumbing fixture are manufactured
based on the standard set by this organization
CS AND PS
20
When a lift check valve is not working properly,
what should be done?
Check the lift disk
21
What is the material applied to a thread of pipe to
compensate for workmanship in a screwed joint
Teflon tape
22
Which of the following type of valve usually
operated without manual control?
Check valve
23
When soldering copper gutters, what is that flux
that is generally used
Resin
24
What is that plumbing devices that prevent the
passage of bad odor and gasses from the sewer
system to a building?
Trap
25
What is that device suitable for pumping sewage
from the deep basement floor into the sewer
line?
Pneumatic ejector
26
Minor stoppage from water closet traps can be
cleared with plunger, but for more stubborn
clogs, use
Closet auger
27
To repair a leaking DWV copper joint, you should
Cut and unscrew at the joint
28
A storage heater is used when the demand
Has large volume changes
29
Water like gases solid is composed of small
individual parts scientifically referred to as:
Molecule
30
The most practical circulating pump for use in the
hot water system is the type:
Centrifugal pump
31
In sizing a downspout the deciding factor for its
proper size:
All of these
32
A system of pipes and equipment used exclusively
to supply water for extinguishing fire:
Sprinkler system
33
A device or structure, above or below the ground
used for removing soil or colloidal materials of a
type that cannot be remove by sedimentation
Filter
34
Installation of water service must be direct and in
short manner a possible turns, or offset elbows
should be avoided because the element will incur
Friction losses
35
Friction in plumbing system will causes losses in
pressure in pipe due to
Resistance produce by contact of flowing water and the interior surface of pipe
36
What is the pipe fitting used in the
interconnection of service pipe and insertion to
the water main?
Clamp saddle
37
What is the knockdown coupling like fitting that is
specially use and interconnect two water service
pipes in place?
Union patent
38
A pipe fitting with outside thread and projecting
square head used for closing the edge of another
fitting
Plug
39
A short pipe with outside thread used for
connecting pipe or fitting
Nipple
40
A nut that is screwed up tightly against another
nut to prevent it from becoming loose
Lock nut
41
The difference between a tube and a pipe is that,
tube has relatively thin wall and
The listed size correspond to outside diameter
42
What do you call the phenomenon causing
rumbling sound and severe shock when water
flow is halted abruptly by rapid closure of valve or
faucet?
Water hammer
43
What is the level to which water must use in a
fixture to overflow without restriction?
Flood level
44
What is the type of water closet for public use?
Elongated bowl type
45
Floor drain is always provided with removable
strainer, the open are of which is equivalent to afraction of the cross sectional area of the drain
pipe
2/3 of the area
46
A flexible auger is use to remove obstruction that
take place in these fittings
Trap way of toilet bowl
47
The use of compound in screw joint, a dope may
applied by plumber for what purpose
To make permanent
48
In a screwed connection, always begin to screw
by hand and make sure the fitting turn readily
after the length of approximately
3 threads
49
The kind of valve installation characterized as to
check or prevent reversal of flow in the pipe
Check valve
50
The type of wrench use for screwing bolt and
insert for valve with hexagonal end
Monkey wrench
51
The type of wrench used in working with plated
or high-finish materials and in place with two
small to admit pipe wrench
Strap wrench
52
The explosion of molten lead when pouring into
the hub of G.I. pipe when preparing a caulk joint
is caused by:
Wet and watery hub end
53
When making screwed joints in a potable water
system, apply sealing compound on
Male thread only
54
Which flushing action in water closet requires a
flushometer?
Blowout
55
Which type of urinals uses less water than any of
the other type?
Washdown
56
In a solvent-cemented plastic piping system, most
leaking joints are caused by a worker’s failure to:
Deburr the inside of the pipe
57
Which of the following should be used for
lubricating during the threading process?
Machine lubricating oil
58
What is the other name for rain water
downspout?
Leader
59
Which of the following is not a type of water
fountain?
Semi-recessed
60
What is the valve which is an adoption of ball
valve?
Plug valve
61
All of the following are used in a site drainage
system EXCEPT:
Roof drains
62
Subsoil water is collected and carried to a
Sump
63
Which of the following is not a plumbing fixture?
Booster pump
64
Which type of lavatories is designed for group
use?
Wash fountain
65
What must be the slope of building drain
installation?
1/8-1/4 in/ft
66
Minor stoppage form water closet traps can be
cleared with plunger, but for more stubborn
clogs, use
Closet auger
67
What are references in measuring the depth of a
trap seal of the trap?
Crown weir to top dip
68
Subsoil drains are installed at what level?
Under the basement floor
69
The prescribe color coding of piping under steam
division of a high pressure pipe is
White
70
What are the most common joints used for brass
and steel piping installation?
Screwed and flanged
71
What is the prescribed color coding of piping
under water division of fresh water pipe?
Blue
72
In large restaurant, the fixture for washing
vegetable pan cauldron is the:
Scullery sink
73
What is that pressure that comes from the
amount of air that was drag along with friction by
flowing down the wall of the waste stack?
Atmospheric pressure
74
At the base of a vertical drain, flow enters the
horizontal drain at a relatively high velocity, what
do you call that flow?
Surging flow
75
The handicapped fixtures are usually designed for
people with less physical ability than the general
public, for the handicapped toilet requirement,
the height is higher than standard toilet. What is
the height of the handicapped fixtures?
18 inches
76
Water taken from background sources usually
contain compound of Calcium and Magnesium
which render its inconvenient for domestic used
particularly?
It precipitate salt form within pipe that reduces the diameter
77
The device installed above the flood level rim of
plumbing fixtures to primarily permit air from
atmosphere to prevent back siphonage of liquid
from the fixture is known as:
Vacuum breaker
78
Whenever water flow in the water supply system
of a building, there is a continues loss of pressure
generating between the moving water and inner
surface of pipe, this is known as:
Pressure loss
79
As the water line for the building strike against
the higher spots inside pipe surface, energy is
transferred into the pipe causing it to move or vibrate, also produces line noise, these
phenomenon is known as:
Water hammer
80
When backfilling over laid drainage pipe, a
plumber must take measure to prevent damage
to the pipe. Back fill materials should be added
gradually at typical layer and must be compacted
before nest layer is dump.
0.30 & 0.60 m per layer
81
When pipe penetrate an exterior wall it must pass
thru a sleeve. What is the size of the sleeve thru
which to be installed for the pipe to rest?
One pipe size larger
82
Factory waste or domestic waste is not allowed to
be discharge into the drain pipe such as what?
Storm drain pipe
83
Manholes are NOT required for the laid drain pipe
of this diameter
150 mm
84
Which of the following trap is a prohibited trap
inside residences?
Bell trap
85
Aside from the proper sizing of house drain, the
other factor in the installation is the grade, what
is the pipe pitch necessary to have adequate flow
throughout the length and assure through
discharge of waste water.
¼ in/ft
86
The phenomenon called water hammer, brought
about by sudden closing or opening of valves can
be controlled by installing devices above each
faucet such as these:
Air chamber
87
In plumbing installation, what portion of pipeline
do you need to provide air break?
Indirect water connection
88
The new technique of installing floor mounted
water closet with the end in view of assuring
cleanliness, leak proof and convenience is with
the used of this materials:
Floor flange and gasket
89
The ventilation method whose primary purpose is
NOT to protect trap against back pressure and
siphonage is what?
Main vent
90
The wastes in plumbing system contain many
chemical elements which are detrimental to the
piping materials yet can be eliminated through
proper ventilation. What elements are found to
be in large quantities that cause deterioration of
piping materials?
Hydrogen
91
Which of the fixture need to be provided with
individual vent to avoid the transmittal or surge
effect to other fixture trap connected to a branch
drain:
Bathtub
92
During the initial phase of waste water to
discharge into drain pipe, which of the fixtures
produces the very sudden and heavy surge with
appreciable shock effect in other fixture:
Bathtub
93
In inserting a wye fitting into laid house sewer,
the practical produce is these
Cut the sewer to the length, insert wye and joint ends with sleeves
94
After threading of a G.I. pipe thru a stack and dies
the next step for plumber should do is to ream
the inside of pipe for these purpose
Smoothening the surface end of the pipe
95
When a caulking iron had stricken hard a cast iron
hub while doing caulk joint and had the pipe
cracked, what would you do?
Replace the pipe and fitting
96
An inside roof leader is extended vertically
through the floor of the building to a point below
the roof. What is the common practice to reduce
the danger of breakage which may result from
expansion and contraction of roof?
Install packing materials to cushion possible impact
97
What of the following device is NOT a plumbing
fixture?
Pneumatic pump
98
In preparing of a mortar or form a sticky mass to
be squeezed into the bell of clay pipe for a
cement joint, the mixture will be
Pure cement and water
99
It is a loss of trap seal due to unequal atmospheric
pressure condition and due to rapid flows of
water thru the trap.
Siphonage
100
It is portion of the vent pipe through which liquid
waste flow:
Wet vent
plumbing code
plumbing code
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44問 • 2年前問題一覧
1
What do you call this valve installed at the suction
line of pump to prevent the loss of prime of the
pump
Foot valve
2
Polyvinyl Chloride (PVC) pipes used for drain
waste vent (DWV) are manufactures based on the
standard set by this organization
ASTM
3
Water for domestic use comes from these sources
except
Sea water
4
What is the setting height from the floor for wall
hung lavatory
22"
5
How much is the plumbing permit fee for one
lavatory in excess of one unit minimum required?
P 6.00
6
The recommended hot water supply to an hotel
washing machine is?
10 GPH
7
Gasses not found in sewer air of septic tank are
Chloride
8
What is the setting height from the floor for a
water supply inlet of flush tank water closet
8"
9
A male thread fitting with square head used for
closing another female fitting is called
Plug
10
The recommended hot water supply to a hotel
lavatory
5 GPH
11
Copper pipes are sized
1/8 bigger than their inside diameter
12
To boost the water pressure of hot water, use
Circulating pump
13
Which type of wrench is used to assemble hubless
joint
Torque wrench
14
When silt and dirt is removed from water, the
process is called
Filtration
15
The recommended hot water supply is a
therapeutic bath?
75 GPH
16
What is the setting distance from the floor for a
bidet waste drain outlet?
12"
17
Electric water heaters are manufactured based on
the standard set by this organization.
UL
18
Plumbing pipe color coded in Aqua-blue stripe or
bar is identified as
Potable water pipe
19
Stainless steel plumbing fixture are manufactured
based on the standard set by this organization
CS AND PS
20
When a lift check valve is not working properly,
what should be done?
Check the lift disk
21
What is the material applied to a thread of pipe to
compensate for workmanship in a screwed joint
Teflon tape
22
Which of the following type of valve usually
operated without manual control?
Check valve
23
When soldering copper gutters, what is that flux
that is generally used
Resin
24
What is that plumbing devices that prevent the
passage of bad odor and gasses from the sewer
system to a building?
Trap
25
What is that device suitable for pumping sewage
from the deep basement floor into the sewer
line?
Pneumatic ejector
26
Minor stoppage from water closet traps can be
cleared with plunger, but for more stubborn
clogs, use
Closet auger
27
To repair a leaking DWV copper joint, you should
Cut and unscrew at the joint
28
A storage heater is used when the demand
Has large volume changes
29
Water like gases solid is composed of small
individual parts scientifically referred to as:
Molecule
30
The most practical circulating pump for use in the
hot water system is the type:
Centrifugal pump
31
In sizing a downspout the deciding factor for its
proper size:
All of these
32
A system of pipes and equipment used exclusively
to supply water for extinguishing fire:
Sprinkler system
33
A device or structure, above or below the ground
used for removing soil or colloidal materials of a
type that cannot be remove by sedimentation
Filter
34
Installation of water service must be direct and in
short manner a possible turns, or offset elbows
should be avoided because the element will incur
Friction losses
35
Friction in plumbing system will causes losses in
pressure in pipe due to
Resistance produce by contact of flowing water and the interior surface of pipe
36
What is the pipe fitting used in the
interconnection of service pipe and insertion to
the water main?
Clamp saddle
37
What is the knockdown coupling like fitting that is
specially use and interconnect two water service
pipes in place?
Union patent
38
A pipe fitting with outside thread and projecting
square head used for closing the edge of another
fitting
Plug
39
A short pipe with outside thread used for
connecting pipe or fitting
Nipple
40
A nut that is screwed up tightly against another
nut to prevent it from becoming loose
Lock nut
41
The difference between a tube and a pipe is that,
tube has relatively thin wall and
The listed size correspond to outside diameter
42
What do you call the phenomenon causing
rumbling sound and severe shock when water
flow is halted abruptly by rapid closure of valve or
faucet?
Water hammer
43
What is the level to which water must use in a
fixture to overflow without restriction?
Flood level
44
What is the type of water closet for public use?
Elongated bowl type
45
Floor drain is always provided with removable
strainer, the open are of which is equivalent to afraction of the cross sectional area of the drain
pipe
2/3 of the area
46
A flexible auger is use to remove obstruction that
take place in these fittings
Trap way of toilet bowl
47
The use of compound in screw joint, a dope may
applied by plumber for what purpose
To make permanent
48
In a screwed connection, always begin to screw
by hand and make sure the fitting turn readily
after the length of approximately
3 threads
49
The kind of valve installation characterized as to
check or prevent reversal of flow in the pipe
Check valve
50
The type of wrench use for screwing bolt and
insert for valve with hexagonal end
Monkey wrench
51
The type of wrench used in working with plated
or high-finish materials and in place with two
small to admit pipe wrench
Strap wrench
52
The explosion of molten lead when pouring into
the hub of G.I. pipe when preparing a caulk joint
is caused by:
Wet and watery hub end
53
When making screwed joints in a potable water
system, apply sealing compound on
Male thread only
54
Which flushing action in water closet requires a
flushometer?
Blowout
55
Which type of urinals uses less water than any of
the other type?
Washdown
56
In a solvent-cemented plastic piping system, most
leaking joints are caused by a worker’s failure to:
Deburr the inside of the pipe
57
Which of the following should be used for
lubricating during the threading process?
Machine lubricating oil
58
What is the other name for rain water
downspout?
Leader
59
Which of the following is not a type of water
fountain?
Semi-recessed
60
What is the valve which is an adoption of ball
valve?
Plug valve
61
All of the following are used in a site drainage
system EXCEPT:
Roof drains
62
Subsoil water is collected and carried to a
Sump
63
Which of the following is not a plumbing fixture?
Booster pump
64
Which type of lavatories is designed for group
use?
Wash fountain
65
What must be the slope of building drain
installation?
1/8-1/4 in/ft
66
Minor stoppage form water closet traps can be
cleared with plunger, but for more stubborn
clogs, use
Closet auger
67
What are references in measuring the depth of a
trap seal of the trap?
Crown weir to top dip
68
Subsoil drains are installed at what level?
Under the basement floor
69
The prescribe color coding of piping under steam
division of a high pressure pipe is
White
70
What are the most common joints used for brass
and steel piping installation?
Screwed and flanged
71
What is the prescribed color coding of piping
under water division of fresh water pipe?
Blue
72
In large restaurant, the fixture for washing
vegetable pan cauldron is the:
Scullery sink
73
What is that pressure that comes from the
amount of air that was drag along with friction by
flowing down the wall of the waste stack?
Atmospheric pressure
74
At the base of a vertical drain, flow enters the
horizontal drain at a relatively high velocity, what
do you call that flow?
Surging flow
75
The handicapped fixtures are usually designed for
people with less physical ability than the general
public, for the handicapped toilet requirement,
the height is higher than standard toilet. What is
the height of the handicapped fixtures?
18 inches
76
Water taken from background sources usually
contain compound of Calcium and Magnesium
which render its inconvenient for domestic used
particularly?
It precipitate salt form within pipe that reduces the diameter
77
The device installed above the flood level rim of
plumbing fixtures to primarily permit air from
atmosphere to prevent back siphonage of liquid
from the fixture is known as:
Vacuum breaker
78
Whenever water flow in the water supply system
of a building, there is a continues loss of pressure
generating between the moving water and inner
surface of pipe, this is known as:
Pressure loss
79
As the water line for the building strike against
the higher spots inside pipe surface, energy is
transferred into the pipe causing it to move or vibrate, also produces line noise, these
phenomenon is known as:
Water hammer
80
When backfilling over laid drainage pipe, a
plumber must take measure to prevent damage
to the pipe. Back fill materials should be added
gradually at typical layer and must be compacted
before nest layer is dump.
0.30 & 0.60 m per layer
81
When pipe penetrate an exterior wall it must pass
thru a sleeve. What is the size of the sleeve thru
which to be installed for the pipe to rest?
One pipe size larger
82
Factory waste or domestic waste is not allowed to
be discharge into the drain pipe such as what?
Storm drain pipe
83
Manholes are NOT required for the laid drain pipe
of this diameter
150 mm
84
Which of the following trap is a prohibited trap
inside residences?
Bell trap
85
Aside from the proper sizing of house drain, the
other factor in the installation is the grade, what
is the pipe pitch necessary to have adequate flow
throughout the length and assure through
discharge of waste water.
¼ in/ft
86
The phenomenon called water hammer, brought
about by sudden closing or opening of valves can
be controlled by installing devices above each
faucet such as these:
Air chamber
87
In plumbing installation, what portion of pipeline
do you need to provide air break?
Indirect water connection
88
The new technique of installing floor mounted
water closet with the end in view of assuring
cleanliness, leak proof and convenience is with
the used of this materials:
Floor flange and gasket
89
The ventilation method whose primary purpose is
NOT to protect trap against back pressure and
siphonage is what?
Main vent
90
The wastes in plumbing system contain many
chemical elements which are detrimental to the
piping materials yet can be eliminated through
proper ventilation. What elements are found to
be in large quantities that cause deterioration of
piping materials?
Hydrogen
91
Which of the fixture need to be provided with
individual vent to avoid the transmittal or surge
effect to other fixture trap connected to a branch
drain:
Bathtub
92
During the initial phase of waste water to
discharge into drain pipe, which of the fixtures
produces the very sudden and heavy surge with
appreciable shock effect in other fixture:
Bathtub
93
In inserting a wye fitting into laid house sewer,
the practical produce is these
Cut the sewer to the length, insert wye and joint ends with sleeves
94
After threading of a G.I. pipe thru a stack and dies
the next step for plumber should do is to ream
the inside of pipe for these purpose
Smoothening the surface end of the pipe
95
When a caulking iron had stricken hard a cast iron
hub while doing caulk joint and had the pipe
cracked, what would you do?
Replace the pipe and fitting
96
An inside roof leader is extended vertically
through the floor of the building to a point below
the roof. What is the common practice to reduce
the danger of breakage which may result from
expansion and contraction of roof?
Install packing materials to cushion possible impact
97
What of the following device is NOT a plumbing
fixture?
Pneumatic pump
98
In preparing of a mortar or form a sticky mass to
be squeezed into the bell of clay pipe for a
cement joint, the mixture will be
Pure cement and water
99
It is a loss of trap seal due to unequal atmospheric
pressure condition and due to rapid flows of
water thru the trap.
Siphonage
100
It is portion of the vent pipe through which liquid
waste flow:
Wet vent