Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Plumbing/Gasfitting Period 1 (CND) > Plumbing Theory Period 1 (CND) > Flashcards

Plumbing Theory Period 1 (CND) Flashcards

1
Q

If you can’t vent, conduct a air quality test & wear a SCBA?

A

Do not entre!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The ration of apprentices to journeymen?

A

2 apprentices for the 1st journeymen & then a 1:1 ratio after

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

L.A.C?

A

local apprenticeship committee

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

P.A.C?

A

Provincial apprenticeship committee

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A vertical piping arrangement for drainage & venting in which small diameter trap arms are placed above larger diameter trap arms?

A

A Stack vented group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Any liquid waste other than clear-water or storm water?

A

Sewage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

A vent pipe that connects the top of a soil or waste stack to a vent header or open air?

A

Stack vent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Minimum size of a main stack for a single family dwelling?

A

3” Stack

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Maximum size of a trap arm that may drain into a wet vent?

A

2” (50mm) with the exception of a emergency floor drain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

maximum size of a wet vent that serves a water closet?

A

2” (50mm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Minimum size of a building cleanout fitting that maybe installed is?

A

4”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Minimum pipe size for a building sewer that is to be connected to a public sewer?

A

4”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

piping places underground must be covered with a minimum of?

A

300mm of granular material, carefully placed & tamped over the pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Minimum slope to which a trap arm must be installed?

A

2% grade

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A properly piped wet vented group of fixtures that includes a water closet. Where is the water closet placed?

A

the water closet must be piped as the lowest vented fixture.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Trap arm size is based on?

A

Fixture outlet pipe size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Excavation for building sewers must be?

A

Preceded by utility locator services

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

No water closet maybe installed in a room that is not?

A

Properly lighted or vented

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

maximum direction of change a trap arm have before a vent fitting must be place is?

A

Dependant on the type of discharge the fixture will have

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Gravity drainage in a horizontal piping should move at a speed of?

A

Approx. 2ft per second or 600mm per second

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

ideally flow rates should keep a drainage pipe at least?

A

1/3 to 1/2 full

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The term for any vertical soil & waste piping that passes through a minimum of one story of a building is ?

A

is called a Stack

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Trap arms of fixtures that do not use siphonic action may change direction in the horizontal plane a max of?

A

135 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

the max allowable vertical distance between the fixture & the trap must not exceed ______ inches or _____mm.

A

36” or 900mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

The min. distance between the vent & the trap must not be?

A

less than twice the size of the fixture drain.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

The min. for the trap seal is?

A

38mm or 1-1/2” with exception to acid waste trap seals being 2” or 50mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Flat vent is a trade name for a vent that needs a ?

A

Cleanout

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

2 or more dry vents connecting together?

A

A branch vent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

An individual vent becomes a stack vent when?

A

a fixture drain extends through at least one complete story.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

The min drainage pipe size required for a lavatory is?

A

1-1/4”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What is the primary function of a trap?

A

to keep sewer gas from entering into a building.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Which trap is prohibited from use in the plumbing system?

A

Bell trap

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

The size of a trap that serves 2 lavatories?

A

1-1/2”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What would happen if the fall on a trap arm was more than one pipe diameter?

A

the trap ma self-syphon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

A trap too far below a fixture will?

A

Self- Syphon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

what kind of syphonage occurs when a fixture outlet pipe is too long?

A

momentum syphonage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

The developed length of the fixture outlet pipe from the farthest fixture shall not exceed?

A

900mm (3ft)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Clean out size and spacing must follow which table?

A

Table 2.4.7.2 in the code book

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Min size of a building sewer cleanout fitting maybe installed?

A

3”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Kitchen sink fixture drain requires a cleanout for all change of directions that total?

A

90 degrees of change between cleanouts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

A 4” building sewer requires a?

A

4” building cleanout

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

A building sewer 8” or over in size requires ?

A

a manhole as the cleanout

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

3” floor drain is considered as being vented through the building drain when the?

A

Fixture drain is no longer than 12ft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Line cleanouts on a stack or straight run of piping & fitting cleanouts placed in the branch of a Y fitting count as a?

A

45 degree change of direction for the cleaning tool.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

A cleaning tool should pass through changes of direction in a drain adding up to no more than?

A

135 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

A manhole located inside a building must have an?

A

Air tight seal & be vented

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

A trap cleanout maybe used for?

A

Cleaning the trap

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Tests allowed to be conducted for DWV rough-in piping are?

A

water test, air test, & ball test

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

Where does the building sewer begin?

A

1m outside the foundation wall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Plunger works best when the blockage is?

A

Upstream of the fixture vent fitting.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

A top snake is ?

A

A hand operated drain cleaner

52
Q

Is only useful to clear a blockage located in a water closest trap way?

A

Water closet auger

53
Q

Drainage tapes maybe?

A

hand operated only

54
Q

If a drain cleaning cable breaks in the drain it maybe caught & removed with a?

A

retrieval head

55
Q

Sewer rodding machines are used to ?

A

Large straight runs of pipe

56
Q

Chemical drain cleaners are capable of aggressive reactions resulting in ?

A

Harmful or offensive gases

57
Q

Acid drain cleaners react with H2O in the drain to produce?

A

Hydrochloric Acid

58
Q

the electrically operated drain gun is an adaption of the?

A

Top snake

59
Q

The drain gun should only be used on?

A

Small drains

60
Q

All running traps must have a ?

A

Cleanout over top of them

61
Q

what is the min. length for a 3” non-vented floor drain trap arm?

A

18”

62
Q

max distance between the vent & the trap is measured from?

A

the trap weir to the vent pipe fitting

63
Q

what is the max distance between the vent pipe & a 4” trap?

A

32ft (9.8m)

64
Q

A properly installed pedestal basin should be mainly supported by only?

A

Brackets places on the wall where the fixture is to sit.

65
Q

The PH level of natural precipitation is commonly closed to?

A

5.6

66
Q

Vent pipe roof terminal assemblies need to be?

A

Carefully located & appropriately constructed

67
Q

a sewer that is installed to convey storm water is a?

A

Storm Sewer

68
Q

Measure a long centre line of the pipe?

A

Developed length

69
Q

Min diameter of a fixture outlet pipe?

A

1-1/2” 38mm

70
Q

An important difference between manholes & catch basins are?

A

Applications

71
Q

Min distance for a trap arm on a lav.?

A

3” or 2x the pipe diameter

72
Q

max distance for a trap arm on a lav.?

A

1.8m or 6ft

73
Q

max. distance between the vent pipe & a 1-1/4” trap?

A

1.5m or 5ft

74
Q

Max distance between the vent pipe & 1-1/2” trap?

A

1.8m or 6ft

75
Q

max distance between the vent pipe & a 2” trap?

A

2.4m or 8ft

76
Q

max distance between the vent pipe & a 3” trap?

A

3.6m or 12ft

77
Q

max distance between the vent pipe & a 4” trap?

A

9.8m or 32ft

78
Q

The max distance between the vent & the trap is measured from & to?

A

Centre line of the vent to the weir of the trap

79
Q

The max drop on a horizontal drain & the vent pipe connection must not exceed?

A

The diameter of the pipe

80
Q

Min. distance between the vent & the trap must not be less than?

A

twice the size of the fixture drain

81
Q

The best arrangement for venting because waste water does not entre the vent pipe?

A

the continuous waste & vent principle connection

82
Q

May allow fixture to self syphon?

A

trap to low below the fixture

83
Q

Vent pipe roof flashing must be compatible with the vent pipe material to avoid ?

A

Electro-chemical corrosion

84
Q

A vent connection fitting paced on a trap arm must have the?

A

The vent opening arranged above the horizontal centre line of the trap arm

85
Q

True or False: All ball cocks will be of the anti-siphon type?

A

True

86
Q

Is operated by the tank flush lever flush lever and holds water in the tank until the toilet is flushed?

A

A flapper or flush actuator

87
Q

Fixtures considered as a bathroom group in a residence are?

A

The tub or shower, the toilet and the basin

88
Q

A close coupled water closet differs from a low or high tank closet by?

A

The way the tank is mounted.

89
Q

A properly installed pedestal basin should be mainly supported by only?

A

Brackets placed on the wall where the fixture is to sit

90
Q

True or False: All ball cocks will be of the anti-siphon type?

A

True

91
Q

Is operated by the tank flush lever & holds water in the tank until the toilet is flushed?

A

A flapper or flush actuator

92
Q

Fixtures considered as a bathroom room?

A

The tub and/or shower, toilet & basin

93
Q

A close-couple water closet differs from a low or high tank water closet by?

A

The way the tank is mounted

94
Q

Is installed before drywall or plaster is placed on the wall?

A

A recessed tub

95
Q

A properly installed pedestal basin should be mainly supported by only?

A

Brackets placed on the wall where the fixture is to sit.

96
Q

What shows rough dimensions of fixtures & supplies piping locations?

A

Fixture rough in manuals

97
Q

The residential fixture that requires a shut off valve on its water supply piping?

A

The water closet

98
Q

Kitchen sinks do not have concealed over flow arrangements because?

A

Food & grease can collect in the overflow creating an unsanitary condition.

99
Q

The plumbing fixture that requires the most maintenance is?

A

The water closet

100
Q

When cutting a hole for a fixture in a counter top you should?

A

Use a reciprocating saw with a sharp fine toothed blade

101
Q

Where would you find the space required for a water closet?

A

Manufactures rough in books

102
Q

The quantity of drinking water per day required by humans ?

A

2 liters

103
Q

Cloud formation is the atmosphere is caused by?

A

Cool air condensation of water vapor

104
Q

Ground water that naturally re appears on the earth surface may show up as?

A

Swamps, sloughs or springs

105
Q

PH level of natural precipitation is commonly close to?

A

5.6 PH

106
Q

PH level of 4 indicates that a substance is?

A

Acidic

107
Q

Water is considered to be a universal solvent because?

A

More things dissolve in water that in any other solvent.

108
Q

A gooseneck on a water service is installed to provide for?

A

Flexibility of the pipe as ground settling after backfill or moves from frost.

109
Q

The corporation curb cock is placed on or near the property line for?

A

The utility employee does not have to trespass

110
Q

What is the minimum size of water distribution piping to a service water heater serving more than two fixtures?

A

3/4”

111
Q

What is the maximum length of connector used with a 3/8” supply pipe?

A

750mm

112
Q

A water test for water distribution system may be done with?

A

Potable water only

113
Q

The shut off valve placed at the entry point of a 3/4” or 1” water service is allowed to be ?

A

A stop & drain valve

114
Q

Minimum pay rates for apprentices are laid out by law in?

A

Plumber trade regulations

115
Q

A pipe that collects both human waste and other types of waste is known as a?

A

Soil pipe

116
Q

True or False: A stack-vented group is also known as a single story wet vent?

A

False

117
Q

The discharge from an air conditioner would be known as?

A

Clear water waste

118
Q

The pipe that connects a fixture trap to another part of the drainage system is known as?

A

Fixture Drain

119
Q

True or False:A device used for the storage of food must have its drain directly connected to the drainage system?

A

False

120
Q

True or False: A vent pipe that is an extension of a soil stack is known as an individual vent?

A

False

121
Q

True or False: Nominally vertical means an angle of not more than 45 degrees with the vertical?

A

True

122
Q

Minimum standards for plumbing systems installed in the province of Alberta are found in the?

A

National plumbing code of Canada

123
Q

A water closet trap will be tied into the stack by the use of a?

A

Sanitary tee

124
Q

The unobstructed vertical distance thru air between a soil or waste pipe and the flood level rim of the fixture into which it discharges?

A

Air break

125
Q

The minimum size of a Laundry Tub Trap arm?

A

1-1/2”

126
Q

Minimum size of a water closed trap arm?

A

3”

127
Q

Changes of direction or elevation in water distribution networks are protected fro disconnection of fittings by?

A

Thrust blocks & anchors

Plumbing/Gasfitting Period 1 (CND) (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions