PRACTICAL PROBLEM I,II Flashcards
(187 cards)
1
Q
A hanger used to support a vertical pipe that traverses multiple floors
A
Correct answer: Riser Clamp
2
Q
used to support suspended multiple horizontal pipes
A
Trapeze
3
Q
used to supported suspended single horizontal pipe
A
Clevis
4
Q
What is the material applied to a thread of a pipe to compensate for workmanship in a screw joint?
A
Correct answer: Teflon Tape
5
Q
also known as Polytetrafluoroethylene
A
Teflon Tape
6
Q
used on a pipe to help secure a seal between threaded connectors
A
Pipe Dope
7
Q
Minimum and maximum safe space level of oxygen in a confined space.
A
Correct answer: 19.5% to 23.5%
Source: indsci.com
Additional info:
- With low oxygen levels being the biggest cause of death in confined spaces, accurate oxygen level measurements are essential.
8
Q
designed to cut through screws, bolts, and other metal fasteners.
A
Bolt Cutter
9
Q
ideal tool for cutting chains
A
Chain Cutter
10
Q
used for cutting wire
A
Diagonal Pliers
11
Q
A wrench with one fixed and one adjustable jaw at right angles to a straight handle
A
Correct answer: Monkey Wrench
Source: britannica.com
12
Q
features narrow jaws to fit into tight places.
A
Spud Wrench
13
Q
Sturdy, cast-iron housing and I-beam handle with full floating forged hook jaw, featuring self-cleaning threads with replaceable hook
and heel jaws.
A
Pipe Wrench
14
Q
A unique design multiplies the turning force applied to a pipe.
A
Compound Leverage Wrench
15
Q
LEL means _____.
A
Correct answer: Lower Explosive Limit (the lowest concentration (in air) that is needed for the gas to ignite and explode)
Source: enviromed.ca
16
Q
Pipe longer than 12 inches is regarded as _____.
A
Correct answer: Cut Pipe
Source: Audel
17
Q
a piece of pipe less than 12” in length threaded on both ends
A
Nipple
18
Q
connect two or more sections of pipe with the aim of maintaining continuity between them
A
Coupling
19
Q
How many turns does it take to operate a 6” double-disk valve?
A
Correct answer: 20.5
Source: USPVH.com
Additional info:
The AWWA operating formula for opening/closing a gate valve is 3 times the nominal valve size plus 2 or 3 turns of the operating nut. For example, a 6-inch gate valve would require 6 x 3 = 18 turns plus 2 or 3 turns, for a total of 20 to 21 turns.
20
Q
If you do find algae in your reservoir, you can combat them by ____ in your reservoir water.
A
Correct answer: lowering the pH
Source: royalbrinkman.com
Additional info:
- light reduction is also a natural way to get rid of algae
21
Q
Piping color codes are used when utility companies stake out piping locations. A yellow flag generally indicates _____.
A
Correct answer: Gas
Source: American Public Works Association
22
Q
reclaimed water, irrigation, slurry lines
A
Purple utility flag
23
Q
storm and sanitary sewers
A
green utility flag
24
Q
potable drinking water
A
blue utility flag
25
phone and telecommunication lines
orange utility flag
26
electric power lines, cables, or conduit, and lighting cables
red utility flag
27
pre-marking the outer limits of proposed excavation
white utility flag
28
temporary survey markings, unknown/unidentified facilities
pink utility flag
29
Features a jaw opening parallel to the handle and a narrower hook jaw head. Provides easy entry into tight spots.
Correct answer: Offset Pipe Wrench
Source: Ridgid
30
Assures a fast and easy grip for pipe working in restricted spaces or close to a wall.
End Pipe Wrench
31
Hex jaw design gives multi-sided, secure grip on all hex nuts, square nuts, unions and valve packing nuts.
Hex Wrench
32
12" Spud Wrench features narrow jaws to fit into tight places.
Spud Wrench
33
Brass pipe is one of the approved materials for water service piping. On what standard is it based?
Correct answer: ASTM B43
34
Standards Specification of CPVC Plastic Hot and Cold Water
ASTM D2846
35
Standards Specification of Threadless Copper Pipe
ASTM B302
36
Standards Specification of Carbon Steel Seamless Pipe
ASTM A53
37
In pipes, the higher the SDR, the _____.
Correct answer: thinner the wall of the pipe.
Additional info:
- SDR is Outer Diameter divided by the wall thickness
38
A simple tool used for opening up the end of a lead pipe in preparation for making a wiped joint.
Correct answer: Turnpin
39
for soft copper water tubing
Flaring Tool
40
for connecting PPR
Fusion Welder
41
generic tool for expanding various pipe materials
Pipe Expander
42
The following are grounds for non-issuance of the certificate of registration by the Board of Master Plumbers except for _____.
Correct answer: failure to pay the required fees (not a ground)
Source: RA 1378
43
What tool is a long flexible rod up to 100 feet long, used to insert into a sewer line for cleaning and declogging?
Correct answer: Plumber's one-piece flat sewer tape
Additional answer:
- One-piece Flat Sewer Tape can be used on sewer and drain lines through 8" (200 mm) in diameter and up to 100' (30,4 m) in length.
44
Wet standpipes shall be located so that all portions of the buildings are within ___ of a nozzle attached to 22 meters of a hose
Correct answer: 6 m
Source: RA 9514
45
A connector device or metal shackle with drilled ends to receive a pin or bolt and that is used for attaching or suspending parts.
Correct answer: Clevis
Source: ASPE
46
A jaw-type mechanical device used to connect, as a hanger or support, or used to hold part of a piping system to a structural beam element (typically a steel beam).
Center beam clamp
47
A mechanical device with a channel adapter and hook rod that provides an off-center attachment to the bottom flange of a channel beam for a hanger, support, or other part of a piping system.
Channel clamp
48
A support device providing vertical adjustment consisting of a clevis-type top bolted to a formed steel bottom strap.
Clevis hanger
49
Hanger rod size for 4" pipe size
Correct answer: 3/8"
50
For 1/2" to 4"-
3/8" Rod Size
51
For 5" to 8"
1/2" Rod Size
52
For 10" to 12"
5/8" Rod Size
53
A preformed support or fastener, usually constructed in a cantilevered manner, with or without additional diagonal structural members for load stability.
Correct answer: Bracket
Source: ASPE
54
A component used to brace structural assemblies and piping systems
Cable
55
Components added to a standard pipe support or hanger system to limit sway during movement such as during a seismic event.
Cable Sway Brace
56
An assembly or bracket device used to resist twisting or to restrain a piping run in the axial direction.
Axial Brace
57
A galvanized steel pipe can be cut with a ____ and ____.
Correct answer: Pipe Cutter and Hacksaw
58
a cutting tool used for machining, designed to slightly enlarge the size of a drilled hole, but with high precision; also used for deburring before threading
Reamer
59
suitable for galvanized steel pipe
14 TPI Hacksaw
60
A heavy sprocket chain that is slipped around a pipe, then attached to wrench handled and used on piping work especially large size pipe metal pipes and in areas that is not easily accessible
chain wrench
61
A shovel suitable for harder packed, even rock filled soils
Correct answer: Pointed Digger
Source: trees.com
62
a flat shovel, and is used mostly for edging, transplanting woody perennials and small shrubs due to how easy it is to cut through roots, and trenching.
Square diggers
63
work well for digging in softer soils, and for transplanting plants.
Rounded diggers
64
For use in cleaning pipes of general material clinging to pipe walls.
Correct answer: Sharktooth Cutter
Source: Ridgid
65
For main sewers blocked by roots, leaf debris, sticks, sawdust, cloth, and sacking.
Spiral Bar Cutter
66
For following up after augers have been used and to open up floor drains.
Spade Cutter
67
For blockages caused by hardened, glazed material such as chemical deposits.
Four Blade Saw Tooth Cutter
68
In installing a leak-proof connection using copper tubing without soldering, what will be the most appropriate tool or method to use?
Correct answer: flaring tool
69
used to ignite torch
striker
70
method to join lead pipes
wiping
71
used to join hubless cast iron pipes
shielded coupling
72
A hot water return line is drawn with _____.
Correct answer: Solid line with three dashes
73
Solid line with one dash
Cold water line
74
Solid line with two dashes
Hot water line
75
What should be the distance of the base of the ladder if it's working length is 15ft?
Correct answer: 3.75 ft
Additional info: The foot of a ladder shall have a horizontal distance from the top support to the foot of the ladder one-quarter of the working length of the ladder.
76
A component of a personal fall protection system consisting of a flexible line for connection to an anchorage at one end so as to hang vertically or so as to stretch horizontally.
Correct answer: Lifeline
Source: OSHA
77
flexible line of rope, wire rope, or strap that generally has a connector at each end for connecting the body belt or body harness to a deceleration device, lifeline, or anchorage.
Lanyard
78
a strap with means both for securing about the waist and for attaching to other components such as a lanyard used with positioning systems, travel restraint systems, or ladder safety systems.
Body Belt
79
a deceleration device that travels on a lifeline and automatically, by friction, engages the lifeline and locks so as to arrest the fall of an employee
Rope Grab
80
Which of the following fixture group qualifies the definition of battery of fixtures?
3 lavatories, and 2 water closets
5 water closets
1 water closet, 1 lavatory, and 1 shower
2 lavatories, 2 urinals, and 1 water closet
Correct answer: 5 water closets
Additional info:
- Battery of Fixtures: any of two or more similar adjacent fixtures which discharge into a common horizontal soil or waste branch.
81
An auger bit is used for drilling _____.
Correct answer: Wood
Source: albanycountyfasteners.com; various websites
82
Copper piping used for medical gas systems should only be cut with a _____.
Correct answer: Copper tubing cutter
Source: NFPA 99
Additional info:
- NFPA 99 (Health Care Facilities Code) requires tubing to be cut square using a sharp tubing cutter that shall be free of Grease, oil, or other lubricants not suitable for oxygen service.
83
They install pipe systems that move liquids or gases under high pressure.
Correct answer: Steamfitters
Source: Audel
84
lay clay, concrete, plastic, or cast-iron pipe for drains, sewers, water mains, and oil or gas lines.
Pipelayers
85
install and repair the water, waste disposal, drainage, and gas systems in homes and commercial and industrial buildings.
Plumbers
86
Excavated spoils must be kept _____ from trench edges.
Correct answer: 2'
Source: OSHA
87
For trenching, vertical braces should be located every _____.
Correct answer: 8'
Source: Audel
88
TPI of hacksaw blade used for general work shops
Correct answer: 18 TPI
Source: benchmarkabrasives.com
89
TPI for large sections of mild materials
14 TPI
90
for cutting steel plates
24 TPI
91
for cutting hollow sections and tubings
32 TPI
92
Trenches shall be back-filled in thin layers of _____ above the top of the pipe with clean earth.
Correct answer: 0.3 m
Source: RNPCP, Chapter 3
93
used in the electrical trade to cut, straighten, and bend wire, and also to twist wires together when making splices.
Lineman's Plier
94
pliers whose pivot point or fulcrum can be moved to increase the size range of their jaws
Slip Joint
95
pliers that can be locked into position, using an "over-center" cam action
Locking Pliers
96
Use to grip small objects, reach awkward places, holding wires, bend loops, and attach wires
Longnose Plier
97
Horizontal Stringers should be placed every ____'
4'
98
Ladders used to gain access to roof shall extend at least _____ above the roof.
Correct answer: 0.9m (or 3 feet)
Source: OSHA
99
A beginner at the trade who usually serves for to 5 years as a helper to a journeyman.
Correct answer: Apprentice Plumber
100
has served his apprenticeship and is competent to perform the tasks of installing and repairing the plumbing system
Journeyman Plumber
101
a person technically and legally qualified and licensed to practice the profession of master plumbing
Master Plumber
102
The extension of a soil or waste stack above the highest horizontal drain connected to the stack.
Correct answer: Stack Vent
Source: RNPCP, Chapter 2
103
the vertical vent pipe installed primarily for providing circulation of air to and from any part of the soil, waster of the drainage system
Vent Stack
104
a vertical soil pipe conveying fecal matter and wastewater
Soil Stack
105
the uppermost end of the stack vent above the roof
SVTR (Stack Vent Through Roof)
106
What is a "powder room"?
Correct answer: half bath
Additional info:
- a half bath contains a toilet and sink but no bathtub or shower
107
In which order is a water main disinfected?
Correct answer: flushing, dosing, flushing, testing
Additional info:
- Pre-disinfection flush – removal of any contamination prior to disinfection
- Disinfection – the water main will be filled with water containing chlorine within the specified residual range for a specified time period
- Flush – the chlorinated water will be flushed from the main – note. dechlorinating the water before disposing may be required to meet environmental requirements
108
Water Closet that is simple in construction and yet highly efficient within its limitations
Correct answer: Washdown
Source: termiumplus.gc.ca
109
particularly suitable for installation with flush valves or low tanks
Reverse Trap
110
flushing action of the _________ bowl is accomplished by a jet of water being directed through the upleg of the trapway
Siphon Jet
111
Water enters through diagonal punching around the rim of the bowl, creating a vortex that draws the water down into the rear trap with a swirling action that scours the walls of the bowl
Siphon Vortex
112
Large, deep sinks used in mess-halls type facilities
Correct answer: Scullery Sink
113
A deep sink, usually set low and used by janitors for emptying pails of dirty water and mop cleaning.
Slop sink
114
a plumbing fixture usually located in the operating room in a hospital to enable personnel to scrub their hands prior to a surgical procedure
Scrub Sink
115
A ______ sink makes it easy to wash larger items like pots, pans, and baking sheets. Commonly found in residential.
Farmhouse Sink
116
The mounting height of a kitchen sink is _____.
Correct answer: 36" (914.4mm)
Source: ASPE
117
height of lavatory
31" (787.4mm)
118
height of laundry tray
34" (863.6mm)
119
To fasten or hold a material or device to prevent movement, rotation, or displacement at the point of application.
Correct answer: Anchor
120
A preformed appliance or assembly consisting of various components that, depending on its location, is used to hold and/or restrain a piping system from horizontal, vertical, and lateral forces.
Brace
121
An attachment appliance used to connect a pipe directly to a structural element
Strap
122
A mechanical device used to connect, as a hanger or support, or used to hold part of a piping system to a structural beam element.
Clamp
123
A laundry sink faucet with a hose-thread type spout must _____.
Correct answer: have a backflow prevention device
Source: RNPCP, Chapter 6
124
A mixing valve that senses outlet temperature and compensates for fluctuations in incoming hot or cold water temperature is called a _____.
Correct answer: Thermostatic Valve
Source: Louisiana State Plumbing Code
125
: senses incoming hot and cold water pressure and compensates for fluctuations in either to stabilize outlet temperature
pressure balancing valve
126
Vertical vent pipes for outdoor installations shall extend to at least _____ distant from any part of the roof that is used for other purposes.
Correct answer: 3.0 m
Source: RNPCP, Chapter 9
127
distance of vent away from any lot line, alley and street boundary lines
0.9 m
128
extension of vent above roofs used for other purposes
2.1 m
129
vertical termination of vent above a roof
0.15 m
130
What is the likely issue if water leaks from the base of the faucet?
Correct answer: gasket or seal under the faucet
Additional info:
- if water leaks from the spout, the probable issue is the washer or cartridge
- if water does not evenly flow from the spout, consider putting an aerator
- if water leaks from the handle, the probable issue is the o-ring
131
Chemical not found in drain cleaners
Correct answer: Sodium Hydrochloride
132
Commonly known as lye
Sodium Hydroxide
133
commonly seen in acid drain cleaners
Hydrochloric acid
134
commonly known as bleach
Sodium Hypochlorite
135
How should fixtures be located to ensure the most economical installation?
Correct answer: as close together as possible
Source: RNPCP, Chapter 4
136
A fixture carrier for fixtures is installed _____.
Correct Answer: During the rough-in phase of construction
Source: josam.com
Info: Installation of fixture carrier is aligned with the wall support studs before the finish wall is installed. Installation is done by competent journeymen and installers.
137
For flush tank supplies, the available pressure may not be less than _____.
Correct answer: 8 psi
Source: RNPCP, Appendix A
138
minimum pressure for flushometer valves
15 psi
139
A nut that is screwed into place and presses down upon a gland bushing, which transmits the force exerted by the packing nut to the packing.
Packing Nut
140
A device that holds and compresses the packing and provides for additional compression by manual adjustment of the gland as wear of the packing occurs.
Packing Gland
141
A large nut-like component that secures the union thread and the union shoulder together.
Union Ring
142
The part of the valve housing through which the stem extends.
Bonnet
143
In a dye test, a dilution ratio of _____ must be obtained for each flush.
Correct answer: 100:1
Source: ASPE
Additional info:
- Dye test determines the evacuation of urine in the trap seal
144
How do you repair a leak on a plastic pipe fitting?
Correct answer: Cut fitting out and install new fitting
Additional info:
- Pliers can be used to pull off existing fittings
145
Bariatric water closets support weights of _____ pounds.
Correct answer: 500 - 1000 lbs
Source: ASPE
Additional info: Bariatric water closets are made to accommodate overweight and obese people.
146
Minimum storage tanks size (in cu.m) shall be calculated by dividing the building footprint area by _____.
Correct answer: 75
Source: Philippine Green Building Code
147
In a Ball Removal Test, the water closet must flush at least an average of _____ on the initial flush of three different flushes.
Correct answer: 75
Source: ASPE
Additional info:
- Ball removal tests replicate the density of human feces
148
Water closet tank ballcocks shall be installed with the vacuum breaker critical level at least ____.
Correct answer: 1 inch above the full opening of the overflow tube
Source: RNPCP, Chapter 6
149
In the ink test of a water closet, the total length of the remaining ink line must not exceed _____.
Correct answer: 2 inches
Source: ASPE
150
This is also known as close-coupled toilet.
Correct answer: Two-piece toilet
151
one with a two-piece tank and bowl fixture.
Two-piece toilet
152
one with the tank and bowl as one piece
One-piece toilet
153
has a triangular shaped tank; good for small bathroom
Corner toilet
154
In a centerset faucet, the inlet holes are _____ apart.
Correct answer: 4"
Source: ASPE
155
spacing of the outer holes for spread faucets
8"
156
Height of juvenile water closet rim height
Correct answer: 13"
Source: ASPE
157
standard rough-in bowl outlet
12"(304.8mm)
158
children's water closet rim height
10"(254mm)
159
accessible water closet rim height
18"(457.2mm)
160
The back pressure test determines that the water seal remains in place when exposed to a back pressure of _____.
Correct answer: 2 1/2"
Source: ASPE
Additional info:
- The Back Pressure determines that no sewer gas will escape through the fixture when high pressure occurs in the drainage system piping
161
The maximum flow rate for handheld bidet sprays must be _____ per minute according to PGBC.
Correct answer: 4.8 L
Source: Philippine Green Building Code
Additional info:
- 4.8 L/min- maximum flow rate also for lavatory taps and kitchen faucets
162
Where does the soldering of a rigid copper tubing joint require the torch heat to be placed?
Correct answer: fitting
Additional info: The torch shall be applied to the fitting particularly near the joint.
163
The effective thread length of a 3" screwed steel pipe is _____ long.
Correct answer: 1-1/2"
Source: engineeringtoolbox.com
164
A 1" diameter pipe size has _____ threads per inch.
Correct answer: 11 1/2
Source: engineeringtoolbox.com
165
Increasing vents one pipe size will _____.
Correct answer: allow vents to be longer
Source: RNPCP, Chapter 7 Table 7-5 Footnote
166
The purpose of "collector" in a solar water heating system
Correct answer: to absorb solar heat energy to heat water
Source: sciencedirect.com; various sources
167
It is used to prevent aggregates, debris, and other unwanted objects from entering the storm drainage systems.
Correct answer: Catch basin
Source: ndspro.com; opentextbc.ca; various sources
168
What is not a cause of running water?
Correct answer: Loose Closet Bolts
Additional info:
- Loose Closet Bolts cause water to leak beneath the toilet
169
What is a good practice when designing pipes from a rainwater harvesting tank for recycling?
Correct answer: pipes are labeled (pipes should be identified as non-potable)
170
The executive department of the Philippine Government responsible for promoting peace and order, ensuring public safety and strengthening local government capability aimed towards the effective delivery of basic services to the citizenry.
Correct answer: Department of Interior and Local Government (DILG)
Source: PGBC
171
the executive department of the Philippine Government responsible for preparing, integrating, coordinating, supervising and controlling all plans, programs, projects and activities of the Government relative to energy exploration,
development, utilization, distribution and conservation
Department of Energy (DOE)
172
the executive department of the Philippine Government responsible for supervising and managing the different programs and implementing rules governing the use and development of the country's natural resources
Department of Environment and Natural Resources (DENR)
173
executive department of the Philippine Government that functions as the engineering and construction arm of the Government tasked to continuously develop its technology for the purpose of ensuring
the safety of all infrastructure facilities and securing for all public works and highways the highest efficiency and quality in construction
Department of Public Works and Highways (DPWH)
174
Remove burrs from the inside ends of a galvanized pipe with a _____.
Correct answer: reamer
Pipe reamers are used to deburr pipes before threading.
175
Maximum Flush rate of water closet as recommended by EPA of 1992
Correct answer: 1.6 gpf
Source: EPA of 1992/ ASPE
Additional info:
- 0.4 gpf- for ultra-low-flow Water Closets
176
Standard rough-in of bowl outlet from the back wall.
Correct answer: 12"
Source: ASPE
177
What is the name of the special tool designed to reach the hex jam nut beneath a fixture?
Correct answer: basin wrench
Additional info:
- Basin wrench is an ideal tool for use in tight spaces and under sink applications
178
A hissing sound from a toilet after it refills usually indicate that _____.
Correct answer: fill valve is faulty
Additional info:
- a hissing sound indicates that water is still leaking from the tank. The fill valve/ball cock and float ball assembly might be faulty.
- another possible issue is that the flapper does not seat on the gasket properly
179
For use for finish cleaning required of boiler tubes and heat exchangers.
Correct answer: Flue Brush
Source: Ridgid
180
For use when vigorous action is required for cleaning of scale in pipes and boiler tubes
Chain Knocker
181
For final removal of material adhering to walls and certain roots of fibrous nature
Expanding Finish Cutters
182
For grease blockage in lines leading from garbage
disposal unit or waste pipe
Grease “C” Cutter
183
Flow Rate of Self-metering Lavatory for public use
Correct answer: 0.25 gal
Source: EPA of 1992/ ASPE
184
Flow Rate for private lavatories
2.2 gpm
185
Flow Rate for public lavatories
0.50 gpm
186
Flow Rate for water closets
1.6 gpf
187
Flow Rate for showers
2.5 gpm
