問題一覧
1
Where internal water contact parts of valves known as trim materials (stem, disc, seat rings, etc.) are made of bronze.
Bronze-mounted
2
Abbreviation for British thermal units per hour.
Btuh
3
A valve seat that does not allow visible bubbles to appear when the valve is closed.
Bubble Tight
4
A structure having walls and a roof designed and used for housing, shelter, enclosure, or support of people, animals, and property.
Building
5
Often called a house drain, the lowest piping of a drainage system that receives the discharge from soil, waste, and other drainage pipes inside the walls of a building and conveys it outside the building to a distance from 2 to 5 ft (0.70 to 1.70 m). This drain could be sanitary only, stormwater only, or combined stormwater and sanitary.
Building Drain
6
Also called a house sewer, that part of the horizontal piping of a drainage system that extends from the end of the building drain outside the building and conveys the wastewater to a public sewer, private sewer, individual sewage-disposal system, or other approved point of disposal.
Building Sewer
7
That portion of a drainage system below the building sewer that cannot drain by gravity.
Building Subdrain
8
Commonly called a house trap, a device, fitting, or assembly of fittings installed in the house drain to prevent the circulation of air between the house drain and the house sewer. It is usually installed as a running trap.
Building Trap
9
A tee in which the branch is larger than the run.
Bull Head Tee
10
A roughness of extra metal protruding from a pipe, usually caused by pipe cutting.
Burr
11
The maximum design pressure, usually four times normal operating pressure, applied to a piping assembly without causing rupture.
Burst Pressure
12
A pipe fitting that is solid plate with a hole in the center.
Bushing
13
A valve deriving its name from the wing-like action of the disc, which operates at right angles to the flow.
Butterfly Valve
14
A joint made with the two pipes ends or edges brought together and melted at the junction.
Butt Weld
15
A pipeline with valves intended for diverting flow in a different direction or around a piece of equipment.
Bypass
16
A device used to divert the flow past the part of the system through which it normally passes.
Bypass Valve
17
Comparison of the graduation of an instrument with a standard of known accuracy to eliminate variation.
Calibration
18
A small roof protecting a window or entrance.
Canopy
19
The maximum or minimum flow obtainable under given conditions of media, temperature, pressure, velocity, etc.. The volume of media that may be stored in a container or receptacle.
Capacity
20
The action by which a liquid is drawn into a void, primarily observed during soldering.
Capillary
21
A drainage structure used to collect stormwater only to enter a drainage system.
Catch Basin
22
The control of electrolytic corrosion by the application of an electric current in such a way that the structure is made to act as the cathode instead of the anode of an electrolytic cell.
Cathodic Protection
23
A method of sealing a space tight against the passage of water or gas by means of applying a substance to adjacent surfaces.
Caulking
24
The formation of bubbles in a liquid because of a partial vacuum, which damages adjacent parts when these bubbles revert back to a liquid.
Cavitation
25
The union of two fittings by the insertion of material, accomplished mechanically or chemically.
Cement Joint
26
Sometimes called a leaching cesspool, an excavation in the ground that receives the discharge of a drainage system and retains the organic matter and solids discharged but permit the liquids to seep through the bottom and sides.
Cesspool
27
A method of operating a valve by means of a chain-driven wheel.
Chainwheel
28
A trough through which any media may flow.
Channel
29
A recess in a wall or a space in which pipes can be run.
Chase
30
A device designed to allow a fluid to pass through in one direction only.
Check Valve
31
Piping that conveys corrosive or harmful industrial, chemical, or processed wastes to a separate drainage system.
Chemical Waste System
32
The directed route taken by a flow of media from one point to another.
Circuit
33
A branch vent that serves two or more traps and extends from in front of the last fixture to the connection with the vent stack.
Circuit Vent
34
A covered tank used for storing water, placed underground in many cases.
Cistern
35
The potable water supply provided by a public utility.
City Water
36
An opening or fitting in a pipe that can be removed for the purpose of cleaning or examining the interior of the pipe.
Cleanout
37
A particle-controlled area in which filtered air is supplied to maintain a specified level of cleanliness.
Clean Room
38
Clear wastewater drainage from equipment, rooms, and other areas that does not contain contaminants considered harmful.
Clear-water Waste
39
A short piece of pipe used to connect various fittings.
Close Nipple
40
The impingement of small-diameter aerosols that causes them to merge.
Coalescing
41
Often used nomenclature for a faucet.
Cock
42
Regulations, subsequent amendments thereto, and any emergency rules that the department having jurisdiction may lawfully adopt.
Code
43
The numerical value that describes the increase in unit length and area of volume as a result of heat.
Coefficient of Expansion
44
The deformation of a material attributed to the pressure or forces acting at ambient temperatures.
Cold Flow
45
Organisms considered to be in the coli aerogenes group.
Coliform
46
A fixture that combines one sink and tray or a two- or three-compartment sink and/or tray in one unit.
Combination Fixture
47
A specially designed system of waste piping, embodying the horizontal wet venting of one or more sinks, floor sinks, or floor drains by means of a common waste and vent pipe, adequately sized to provide the free movement of air above the flow line of the drain
Combined Waste and Vent System
48
Any liquid with a closed-cup flash point at or above 37.8°C (100°F), classified as follows: Class II liquid: a flash point at or above 37.8°C (100°F) and below 60°C (140°F); Class IIIA liquid: a flash point at or above 60°C (140°F) and below 93°C (200°F); Class IIIB liquid: a flash point at or above 93°C (200°F).
Combustible Liquid
49
The rated percentage of heat produced compared to the actual heat transferred to the medium being heated.
Combustion Efficiency
50
A vent that connects at the junction of two fixture drains and serves as a vent for both fixtures.
Common Vent
51
A mechanical device used to increase the pressure of air or gas.
Compressor
52
Molecules that separate from a gas upon cooling.
Condensate
53
The ability of a substance to conduct heat or electricity.
Conductivity
54
The piping conveying stormwater from a building to a point of disposal.
Conductor
55
A pipe or channel for conveying media.
Conduit
56
The total number of fixtures, equipment, or devices attached to a system.
Connected Load
57
A vent serving more than one fixture vent or stack vent.
Confluent Vent
58
All drawings, specifications, and other written papers prepared or assembled for the purpose of describing the design, location, and physical characteristics necessary for obtaining permits and building a facility.
Construction Documents
59
A degradation of quality in any material that creates a hazard to public health.
Contamination
60
A medium or condition that spoils the nature or quality of another medium.
Contaminator
61
A vertical vent that is a continuation of the drain to which it connects.
Continuous Vent
62
A drain from two or three fixtures connected to a single trap.
Continuous Waste
63
A manual or automatic device that regulates a machine or process.
Control
64
A cabinet containing the motor starter, circuit breaker, disconnect switch, and other control devices for the control of electric motors and internal combustion-engine-driven fire pumps.
Controller
65
A stopcock screwed into the street water main to supply the house service connection.
Corporation Cock
66
The ability of a chemical compound or material to attack, eat away, and damage materials or human beings.
Corrosive
67
A pipe fitting with female threads used only to connect two pipes in a straight line.
Coupling
68
The elongation of a material due to heat or stress.
Creep
69
A reference point on a backflow prevention device or vacuum breaker that determines the minimum elevation above the flood level rim of a fixture or receptacle at which the device may be installed. When a backflow prevention device does not bear critical-level marking, the bottom of the vacuum breaker or combination valve or the bottom of any such approved device shall constitute the critical level.
Critical Level
70
The transition point at which a liquid and gas state merge into one another.
Critical Point
71
A pipe fitting with four branches each at 90 degrees to each other.
Cross
72
Any physical connection or arrangement between two otherwise separated piping systems one
of which contains potable water and the other of which contains a liquid or another substance of unknown or questionable safety—whereby flow may occur from one system to the other, the direction of flow depending on the pressure differential between the two systems.
Cross-connection
73
A pipe fitting with a double offset, or shaped like the letter U with the ends turned out, used to pass the flow of one pipe past another when the pipes are in the same plane.
Crossover
74
A valve fitted on a transverse pipe so as to open communication between two parallel pipes.
Cross Valve
75
The upper part of a trap where the direction of flow is changed from upward to horizontal.
Crown
76
A vent pipe connected at the topmost point of a trap.
Crown Vent
77
The field of low temperature.
Cryogenic
78
An enclosure or chamber located at the curb that contains a shutoff valve on the supply line for gas or water to a building.
Curb Box
79
A drainage structure that allows stormwater to enter a drainage system from an opening in a road.
Curb Inlet
80
A valve in a public location that controls the supply of water to a building.
Curb Valve
81
To deaden vibration. To check or reduce.
Dampen
82
A pipe, 2 ft (0.70 m) or more, terminated by means of a plug, cap, or other fitting that closes off the end of a pipe.
Dead End
83
A trap with a longer water seal than that required by code.
Deep Seal Trap
84
A material that changes state in the presence of water.
Deliquescent
85
Estimated flow or use expected under specific operating conditions.
Demand
86
The ratio of the weight of a substance to its volume.
Density
87
A material that easily adsorbs water vapor.
Desiccant
88
The specific point in a piping network where a pipe size is calculated.
Design Point
89
A listed device for sensing the visible or invisible products of combustion.
Detector, Smoke
90
The length along the centerline of pipe and fittings.
Developed Length
91
The temperature at which water in the air will start to condense on a surface.
Dewpoint
92
The nominal inside diameter of a pipe as commercially designated unless otherwise noted.
Diameter
93
A flexible disc that is used as a closure member in some valves.
Diaphragm
94
A fitting having insulating parts or material that prohibits the flow of electric current.
Dielectric Fitting
95
The variance between two target values.
Differential
96
A separation of compounds dissolved in water into ions.
Dissociation
97
A percent of estimated usage compared to the connected load.
Diversity Factor
98
A process in which biochemical decomposition of organic matter takes place, resulting in the formation of simple organic and mineral substances.
Digestion
99
A closure member in some types of valves that closes off the flow.
Disc
100
An appliance for washing dishes, glassware, flatware, and utensils.
Dishwasher
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17問 • 1年前問題一覧
1
Where internal water contact parts of valves known as trim materials (stem, disc, seat rings, etc.) are made of bronze.
Bronze-mounted
2
Abbreviation for British thermal units per hour.
Btuh
3
A valve seat that does not allow visible bubbles to appear when the valve is closed.
Bubble Tight
4
A structure having walls and a roof designed and used for housing, shelter, enclosure, or support of people, animals, and property.
Building
5
Often called a house drain, the lowest piping of a drainage system that receives the discharge from soil, waste, and other drainage pipes inside the walls of a building and conveys it outside the building to a distance from 2 to 5 ft (0.70 to 1.70 m). This drain could be sanitary only, stormwater only, or combined stormwater and sanitary.
Building Drain
6
Also called a house sewer, that part of the horizontal piping of a drainage system that extends from the end of the building drain outside the building and conveys the wastewater to a public sewer, private sewer, individual sewage-disposal system, or other approved point of disposal.
Building Sewer
7
That portion of a drainage system below the building sewer that cannot drain by gravity.
Building Subdrain
8
Commonly called a house trap, a device, fitting, or assembly of fittings installed in the house drain to prevent the circulation of air between the house drain and the house sewer. It is usually installed as a running trap.
Building Trap
9
A tee in which the branch is larger than the run.
Bull Head Tee
10
A roughness of extra metal protruding from a pipe, usually caused by pipe cutting.
Burr
11
The maximum design pressure, usually four times normal operating pressure, applied to a piping assembly without causing rupture.
Burst Pressure
12
A pipe fitting that is solid plate with a hole in the center.
Bushing
13
A valve deriving its name from the wing-like action of the disc, which operates at right angles to the flow.
Butterfly Valve
14
A joint made with the two pipes ends or edges brought together and melted at the junction.
Butt Weld
15
A pipeline with valves intended for diverting flow in a different direction or around a piece of equipment.
Bypass
16
A device used to divert the flow past the part of the system through which it normally passes.
Bypass Valve
17
Comparison of the graduation of an instrument with a standard of known accuracy to eliminate variation.
Calibration
18
A small roof protecting a window or entrance.
Canopy
19
The maximum or minimum flow obtainable under given conditions of media, temperature, pressure, velocity, etc.. The volume of media that may be stored in a container or receptacle.
Capacity
20
The action by which a liquid is drawn into a void, primarily observed during soldering.
Capillary
21
A drainage structure used to collect stormwater only to enter a drainage system.
Catch Basin
22
The control of electrolytic corrosion by the application of an electric current in such a way that the structure is made to act as the cathode instead of the anode of an electrolytic cell.
Cathodic Protection
23
A method of sealing a space tight against the passage of water or gas by means of applying a substance to adjacent surfaces.
Caulking
24
The formation of bubbles in a liquid because of a partial vacuum, which damages adjacent parts when these bubbles revert back to a liquid.
Cavitation
25
The union of two fittings by the insertion of material, accomplished mechanically or chemically.
Cement Joint
26
Sometimes called a leaching cesspool, an excavation in the ground that receives the discharge of a drainage system and retains the organic matter and solids discharged but permit the liquids to seep through the bottom and sides.
Cesspool
27
A method of operating a valve by means of a chain-driven wheel.
Chainwheel
28
A trough through which any media may flow.
Channel
29
A recess in a wall or a space in which pipes can be run.
Chase
30
A device designed to allow a fluid to pass through in one direction only.
Check Valve
31
Piping that conveys corrosive or harmful industrial, chemical, or processed wastes to a separate drainage system.
Chemical Waste System
32
The directed route taken by a flow of media from one point to another.
Circuit
33
A branch vent that serves two or more traps and extends from in front of the last fixture to the connection with the vent stack.
Circuit Vent
34
A covered tank used for storing water, placed underground in many cases.
Cistern
35
The potable water supply provided by a public utility.
City Water
36
An opening or fitting in a pipe that can be removed for the purpose of cleaning or examining the interior of the pipe.
Cleanout
37
A particle-controlled area in which filtered air is supplied to maintain a specified level of cleanliness.
Clean Room
38
Clear wastewater drainage from equipment, rooms, and other areas that does not contain contaminants considered harmful.
Clear-water Waste
39
A short piece of pipe used to connect various fittings.
Close Nipple
40
The impingement of small-diameter aerosols that causes them to merge.
Coalescing
41
Often used nomenclature for a faucet.
Cock
42
Regulations, subsequent amendments thereto, and any emergency rules that the department having jurisdiction may lawfully adopt.
Code
43
The numerical value that describes the increase in unit length and area of volume as a result of heat.
Coefficient of Expansion
44
The deformation of a material attributed to the pressure or forces acting at ambient temperatures.
Cold Flow
45
Organisms considered to be in the coli aerogenes group.
Coliform
46
A fixture that combines one sink and tray or a two- or three-compartment sink and/or tray in one unit.
Combination Fixture
47
A specially designed system of waste piping, embodying the horizontal wet venting of one or more sinks, floor sinks, or floor drains by means of a common waste and vent pipe, adequately sized to provide the free movement of air above the flow line of the drain
Combined Waste and Vent System
48
Any liquid with a closed-cup flash point at or above 37.8°C (100°F), classified as follows: Class II liquid: a flash point at or above 37.8°C (100°F) and below 60°C (140°F); Class IIIA liquid: a flash point at or above 60°C (140°F) and below 93°C (200°F); Class IIIB liquid: a flash point at or above 93°C (200°F).
Combustible Liquid
49
The rated percentage of heat produced compared to the actual heat transferred to the medium being heated.
Combustion Efficiency
50
A vent that connects at the junction of two fixture drains and serves as a vent for both fixtures.
Common Vent
51
A mechanical device used to increase the pressure of air or gas.
Compressor
52
Molecules that separate from a gas upon cooling.
Condensate
53
The ability of a substance to conduct heat or electricity.
Conductivity
54
The piping conveying stormwater from a building to a point of disposal.
Conductor
55
A pipe or channel for conveying media.
Conduit
56
The total number of fixtures, equipment, or devices attached to a system.
Connected Load
57
A vent serving more than one fixture vent or stack vent.
Confluent Vent
58
All drawings, specifications, and other written papers prepared or assembled for the purpose of describing the design, location, and physical characteristics necessary for obtaining permits and building a facility.
Construction Documents
59
A degradation of quality in any material that creates a hazard to public health.
Contamination
60
A medium or condition that spoils the nature or quality of another medium.
Contaminator
61
A vertical vent that is a continuation of the drain to which it connects.
Continuous Vent
62
A drain from two or three fixtures connected to a single trap.
Continuous Waste
63
A manual or automatic device that regulates a machine or process.
Control
64
A cabinet containing the motor starter, circuit breaker, disconnect switch, and other control devices for the control of electric motors and internal combustion-engine-driven fire pumps.
Controller
65
A stopcock screwed into the street water main to supply the house service connection.
Corporation Cock
66
The ability of a chemical compound or material to attack, eat away, and damage materials or human beings.
Corrosive
67
A pipe fitting with female threads used only to connect two pipes in a straight line.
Coupling
68
The elongation of a material due to heat or stress.
Creep
69
A reference point on a backflow prevention device or vacuum breaker that determines the minimum elevation above the flood level rim of a fixture or receptacle at which the device may be installed. When a backflow prevention device does not bear critical-level marking, the bottom of the vacuum breaker or combination valve or the bottom of any such approved device shall constitute the critical level.
Critical Level
70
The transition point at which a liquid and gas state merge into one another.
Critical Point
71
A pipe fitting with four branches each at 90 degrees to each other.
Cross
72
Any physical connection or arrangement between two otherwise separated piping systems one
of which contains potable water and the other of which contains a liquid or another substance of unknown or questionable safety—whereby flow may occur from one system to the other, the direction of flow depending on the pressure differential between the two systems.
Cross-connection
73
A pipe fitting with a double offset, or shaped like the letter U with the ends turned out, used to pass the flow of one pipe past another when the pipes are in the same plane.
Crossover
74
A valve fitted on a transverse pipe so as to open communication between two parallel pipes.
Cross Valve
75
The upper part of a trap where the direction of flow is changed from upward to horizontal.
Crown
76
A vent pipe connected at the topmost point of a trap.
Crown Vent
77
The field of low temperature.
Cryogenic
78
An enclosure or chamber located at the curb that contains a shutoff valve on the supply line for gas or water to a building.
Curb Box
79
A drainage structure that allows stormwater to enter a drainage system from an opening in a road.
Curb Inlet
80
A valve in a public location that controls the supply of water to a building.
Curb Valve
81
To deaden vibration. To check or reduce.
Dampen
82
A pipe, 2 ft (0.70 m) or more, terminated by means of a plug, cap, or other fitting that closes off the end of a pipe.
Dead End
83
A trap with a longer water seal than that required by code.
Deep Seal Trap
84
A material that changes state in the presence of water.
Deliquescent
85
Estimated flow or use expected under specific operating conditions.
Demand
86
The ratio of the weight of a substance to its volume.
Density
87
A material that easily adsorbs water vapor.
Desiccant
88
The specific point in a piping network where a pipe size is calculated.
Design Point
89
A listed device for sensing the visible or invisible products of combustion.
Detector, Smoke
90
The length along the centerline of pipe and fittings.
Developed Length
91
The temperature at which water in the air will start to condense on a surface.
Dewpoint
92
The nominal inside diameter of a pipe as commercially designated unless otherwise noted.
Diameter
93
A flexible disc that is used as a closure member in some valves.
Diaphragm
94
A fitting having insulating parts or material that prohibits the flow of electric current.
Dielectric Fitting
95
The variance between two target values.
Differential
96
A separation of compounds dissolved in water into ions.
Dissociation
97
A percent of estimated usage compared to the connected load.
Diversity Factor
98
A process in which biochemical decomposition of organic matter takes place, resulting in the formation of simple organic and mineral substances.
Digestion
99
A closure member in some types of valves that closes off the flow.
Disc
100
An appliance for washing dishes, glassware, flatware, and utensils.
Dishwasher