TRUE AND FALSE QUESTIONS *checked Flashcards
(106 cards)
1
Q
- A sheet metal leader can be installed in the overhang of a storefront provided the portion conceal in the overhang ceiling is insulated.
A
False
2
Q
- A screwed cast iron water fitting must be cement mortar lined or galvanized
A
True
3
Q
- Brass pipe shall be seamless yellow brass.
A
Flase
4
Q
- A four-inch 1/4 bend with a 3 1/2” centreline radius may be used to dump a horizontal drainage line to a vertical drainage line
A
True
5
Q
- Corrugated steel pipe can be used outside underground for a sanitary sewer
A
False
6
Q
- An MJ cast iron cleanout fitting must have a brass plug.
A
False
7
Q
- Typ “M” copper may be used in a water distribution system above ground.
A
True
8
Q
- A drinking fountain must have a flow regulator.
A
True
9
Q
- Class 100 asbestos cement water pipe may be used below ground inside a building.
A
True
10
Q
- A sanitary tee may be used to change the flow direction in a horizontal drainage pipe.
A
False
11
Q
- The minimum diameter test ball to be used for a ball test is 25 mm.
A
True
12
Q
- The hub end of bell-and-spigot pipe shall be installed with the hub at the upstream end of the
system
A
True
13
Q
- Galvanized pipe may be welded if the zine coating is first removed and provisions for ventilation are taken
A
False
14
Q
- An indirectly connected fixture’s fixture drain shall terminate above a directly connected fixture
A
True
15
Q
- Vitrified clay pipe shall not be located less than 300 mm below a concrete slab floor.
A
False
Must be 600mm unless it states the slab is 75mm thick or larger
16
Q
- A building drain passing through a foundation wall can be cast in place into the wall.
A
False
17
Q
- Anaerobic bacteria need free oxygen to survive
A
False
18
Q
- Septic tank effluent contains minute particles of suspended solids
A
True
19
Q
- Septic tank effluent contains small numbers of pathogenic bacteria
A
True
20
Q
- In a properly operating disposal field, the aerobic bacteria break down the effluent into stable inorganic compounds
A
True
21
Q
- A baffle may be used in place of an inlet or outlet tee on a septic tank
A
True
22
Q
- A siphon chamber will prevent a disposal field from freezing
A
True
23
Q
- The size of a siphon chamber depends on the volume of the disposal field.
A
True
24
Q
- A siphon chamber does not depend on moving parts
A
True
25
25. Storm water shall be prevented from accumulating on a disposal field
True
26
26.the maximum death of a disposal field distribution pipe is 42 inches
False
27
Batter board is used as a measuring device for burial debts
True
28
28.A minimum of 6 inches of topsoil is required on top of the drain rock in a disposal field
True
29
The maximum width of a disposal field trench is 12 inches
False
30
The maximum length of a disposal fields lateral is 75 feet
False
31
The maximum distance between laterals in a disposal field is 6 feet
False
32
The minimum distance from a septic tank to a building is 5 feet
False
3ft
33
A distribution box has two inlets
False
34
The inlet of a distribution box is 2 inches above the outlets
True
35
The results of a percolation test are used to determine the dimensions of the septic tank
False
36
The discharge from a relief valve may terminate directly into a floor drain
False
37
The discharge from a relief valve shall not terminate more than 300 mm above the floor drain
True
38
A vertical soil or waste pipe, shall not conduct sewage and storm
True
39
A clean out opening must be readily accessible for cleaning
True
40
A building drain that is subject to backflow shall have a backwater valve installed
False
2.4.6.4
The only reason this is wrong is because the is the wording of the question.
You do need a back water valve but 2.4.6.4 states if it is subject to back flow a back water valve on every fixture drain when the fixture is below the level of the conjoining street
41
A maximum 1 a half fixture units may be connect to the lead stub of a water closet trap arm
False
42
A soil or waste pipe shall not be located above pressurized portable tank
(2.7.1.3) true NEW AWNSER
OLD AWNSER
(2.4.6.2)
a) non-pressure potable water storage tanks
B) manholes in pressure potable water storage tanks
C) not above food handling or food processing equipment
43
A cleanout is required on the downstream side of every running trap
False
44
A gate valve may be installed on a fixture drain that is connected to a building drain that is subject to backflow
True
45
A manhole located within a building must be vented
True
46
Backwater valves may be permitted to be installed on a building sewer
True
47
Walls adjacent to a urinal shall be previous to water
False
48
The sewer connection for a mobile home shall be above ground
True
49
Doubling the number of fixture units will double the flow through the sanitary drainage system
False
Notes page 2-92#
Devon- “ it is because it fluctuates, it can cause more flow because there is more people and fixture’s available but it does not mean that all people will be using all fixtures simultaneously doubling the flow
50
The hydraulic load drained to a storm drainage. System is based on fixture units.
False
51
The hydraulic load on a storm drainage system is based on a maximum rainfall in 24 hours divided by 3600
False
Is it based on mm per 15minutes
52
A wet vent shell extend as a continuous vent or a stack vent
True
53
A soil or waste stack may be connected to a wet vent upstream of a wet vented fixture
False
2.5.2.1 (f) ???
54
A water closet trap arm may connect to a wet vent downstream of another water closet
False
55
Two water closets must be connected to a wet vent through a double fitting
True
56
The offset portion of a wet vent is limited to 1.2 m for a 2 inch pipe
True
57
A water closet would be the lowest fixture on a wet vent
True
58
A wet vent can reduce in size
True
For emergency floor drain is the only time this can happen
59
The lowest fixture or symmetrically connected fixtures are not included in the fixture unit load served by a wet vent
True
60
All wet vented fixtures must be on the same story
False
61
A four story wet vented stack may not have more than four fixture units draining to it from the third story
True
62
The maximum length of a 3 inch 45° offset in a multistorey wet vent is 2.5 m
False
2.5.2.1
There is only a limitation on NOMINALLY HORIZONTAL OFFSETS
63
The load of a separately vented fixture connected to a wet vent, is not included when sizing the wet vent
False
64
Additional circuit vents are required when four more fixtures are circuit vented
False
65
The maximum load for a fixture connected to a vertical section of a circuit vent is two fixture unit units
False
66
A relief vent is required on a circuit vented branch if it is connected to a downstream soil or waste pipe of more than six fixture units
True
67
When an additional circuit event is required on a circuit vented system, the additional circuit vent shall be installed so that not more than eight fixtures are located between the vents
True
68
A six story wet vent shall require vent stack
False
69
A future connection to a wet vent, does not have to be calculated into the fixture unit load of the wet vent
False
70
Connections to horizontal wet vents must be rolled above the centre line of the wet vent
False
71
An individual or continuous vent may be connected to a wet vent as long as the connection is above the flood level rim of the fixture below
False
72
A plumber may use a power act tool without special training or licensing
False
73
The chain of a chainsaw must be stopped for moving the saw from one cut to a new cut
True
74
Compressed air would be suitable for dusting off your coveralls while you are wearing them
False
75
A grinding wheel should not be rated at a higher RPM than the grinders RPM
False
76
Wooden ladders maybe painted a solid colour to identify the ladder from the electricians ladder
False
77
Hollow core concrete blocks may be used to support scaffolding
False
78
A steel drum or vessel may have contain flammables, maybe cut with a welding torch if it has first been flushed with water
False
79
A fire extinguisher should be available at all times during welding and cutting operations
True
80
A match or a bic type lighter is suitable to light a B tank torch
False
81
Oxygen fittings should not be lubricated with oil or grease
True
82
Mushroom heads on chisel’s provide a bigger target for your hammer so should be left to reach a maximum size
False
83
Paint your hardhat so you don’t lose it is this statement true or false?
False
84
Contact lenses provide good eye protection, so extra eye protection is not required when grinding
False
85
A shackle pin may be replaced with a bolt
False
86
Water closet bowls are made from one piece of virtified China
False
87
A cow’s foot is used to install a lavatory faucet
True
88
The P-trap used under a kitchen sink may be hub to hub type with no clean out in the bowl of the trap
False
89
The wax seal is installed onto the horn of the toilet bowl with the flat side of the wax seal facing the floor
True
90
Neutral on the acid/alkali scale would be pH of seven
True
91
Acid could have its pH raised by the addition of soda, Ash
True
92
A water softener will require a drain for water waste
True
93
Soften water is not good for irrigation because the soften water will leave a buildup of sodium salt in the soil
True
94
The discharge from a water softener during its regeneration cycle is not harmful to the septic tank under normal circumstances
True
95
A distribution box should be installed so that each lateral of the same length received the same flow of effluent
True
96
Val’s used in medical gas systems are supplied as de-greased at the factory
True
97
In medical gas systems empty gas supply is changed over to a reversal supply automatically
True
98
In a medical gas system, the alarm panels must be located in an area of constant supervision
True
99
A medical gas system must be inspected by a plumbing inspector before it can be put into service
False
100
Diameter index safety systems D.I.S.S is found in a medical gas system
True
101
In a medical gas system on audible alarm can be cancelled but a visual alarm can’t until the condition is rectified
True
102
Trisodium phosphate (TSP) is the cleaner of choice if an on-site cleaning of medical gas fittings is required
True
103
The normal line pressure inside a medical oxygen gas line is 75 psi
False
104
If fluids get inside a medical vacuum line, it must be shut down and thoroughly cleaned and disinfected
True
105
Air compressor for medical compressed air must be liquid ring or oil free
True
106
High-pressure nitrogen is used for operating Bone saws in operation
True
