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JourneyMen Study Package #3 > JMSP #3 > Flashcards

JMSP #3 Flashcards

1
Q

What is placed on a cold water inlet of a hot water tank to prevent cold water from being drawn from a hot water faucet

A

A dip tube

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2
Q

Electric hot water tank with immersion elements is considered to be how efficient

A

100% efficient

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3
Q

An instantaneous hot water heater has what kind of distinguishable function

A

It has a control valve that activates the burner when water is drawn

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4
Q

A baffle is often placed in the flue gas passage of a centre flue hot water tank to do what

A

Slow the exit of hot combustion gas gases

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5
Q

What would be found on a T&P relief, valve information tag

A

Size of valve, pressure setting, sensor length

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6
Q

What is the average approximate height above the floor at which a shower curtain rod for a bathtub is placed

A

6 1/2 feet

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7
Q

Stall urinals are

A

Installed during the roughing stage

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8
Q

A single trap may serve a three compartment sink if it is what

A

One size larger than the largest fixture outlet pipe

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9
Q

“TY” can be used to connect what?

A

A vent pipe to a horizontal branch, vent pipe to another vent pipe

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10
Q

The vertical water distribution pipes in a building are referred to as what

A

Risers

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11
Q

The type of copper used for a water service pipe to a building

A

Type K or L soft copper tube

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12
Q

ABS or PVC horizontal piping must be supported at intervals, not exceeding what

A

4 feet

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13
Q

What type of copper tube can withstand the greatest bursting pressure?

A

Type K

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14
Q

I am eighth band refers to a cast-iron fitting used to change direction by how much

A

45°

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15
Q

Cutting oil is used to

A

Act as a lubricant

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16
Q

In the direction of flow, what would be the proper sequence of installation of a water softener, sand filter, hot water tank and carbon filter

A

Sand filter, carbon filter, softener, hot water tank

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17
Q

Do you need flux with BCUP brazing alloy to be used to join copper tube to copper fittings?

A

Nope

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18
Q

What is the minimum sized vent for a water closet

A

1-1/2”

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19
Q

What is the most common cause of the collapse of a hot water tank

A

Vaccum

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20
Q

What does the formula “P=H x D”

A

Pressure formula- pressure in psi(pounds per inch)
H= height
D= density
( in the pressure formula the P is the highest on the triangle and the H & D are on the bottom)

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21
Q

A pipe full of water 52 feet high would produce a pressure at a point 10’ up from the bottom of approximately

A

18.2 PSI
52-10=42 42x0.433=18.186 psi

0.433 is the amount of PSI per ft of water head

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22
Q

What is the definition of force

A

Pressure of water times surface area
(“ F = P x A”)

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23
Q

What is a fixture drain

A

A pipe connecting to a trap to another part of a drainage system

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24
Q

The minimum distance between laterals in a disposal field is

A

6’

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25
Q

What is the minimum drop between the inverts of the inlet and outlet on a septic tank ( BC HEALTH ACT)

A

2”

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26
Q

When describing a tee, what is the order to be used

A

First the largest run, smaller Run, than the branch

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27
Q

Where is pipe dope applied

A

To the male threads only, leaving the first 2 bare

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28
Q

A pump that delivers a pressure of 40 psi would pump water how high

A

92feet

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29
Q

A pump that is connected to a pressure tank starts and stops frequently. This is probably due to

A

Water logging of the tank

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30
Q

A pressure tanks’s main purpose is to

A

Prevent cycling of the pump

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31
Q

The actual lift of a pump is less than the theoretical lift. this is cause by

A

The loss of efficiency due to friction loss
The inability for pump to create perfect vaccum
The changes of Atmospheric pressure above sea level

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32
Q

Some types of plumbers putty should not be used to install when?

A

A drain fitting in a true marble fixture

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33
Q

The basic function of a fixture trap is

A

To prevent sewer gases from entering building

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34
Q

The proper distance that the base of the extension ladder should be from wall is

A

1 foot away away for every 4 feet up
“1/4 of its vertical height”

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35
Q

Threaded drainage fittings installed in a vertical stack are tapped to provide a pitch of what?

A

A pitch of 1/4” per foot

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36
Q

Asbestos cement pipe is also referred to as

A

White pipe & transits pipe

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37
Q

A septic tank should retain sewage for a minimum of how long

A

24 hours

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38
Q

The maximum fall on a trap arm from the trap weir to the vent is

A

1 pipe diameter

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39
Q

Drainage pipe if 3” diameter and smaller must be graded at

A

1/4” per foot

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40
Q

The vertical distance between the trap weir and the trap dip is known as the

A

Trap seal depth

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41
Q

The minimum water seal of a Ptrap is what

A

1-1/2”

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42
Q

Which is The plumbing fixture with the greatest fixture water demand
Urinal flush valve
Lavatory
Private flush tank WC
Public flush valve water closet

A

Publish flush valve water closet

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43
Q

The developed length of a branch vent shall be

A

From its upper end to the farthest downstream fixture it serves ( upper end, ends at major vent)

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44
Q

“Developed length” means

A

The distance along the centre line of the pipe

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45
Q

Plumbing drains are designed to

A

To run 1/2 to 2/3 full for adequate air flow

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46
Q

An ordinary displacement type water meter registers what

A

The total flow through meter

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47
Q

What meter ( water meters) is considered two meters in one?

A

A compound water meter

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48
Q

The top edge of a fixture from which a water overflows is called

A

The flood level rim

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49
Q

To prevent the load of pipe is being lifted from swinging what is used

A

A tag line is used

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50
Q

The maximum surface temperature that a hot water radiant floor heating panel should NOT exceed is

A

80f•-100f•

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51
Q

On a deep well convertible jet pump, what is larger the suction line or drive line

A

The suction line is larger

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52
Q

And ejector nozzle in a deep well convertible jet pump causes water from the well to flow into the ejector by

A

Decreasing the pressure in the ejector Venturi

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53
Q

A pitiless adapter is used in conjunction with a well pump service line to prevent what

A

The service pipe from freezing

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54
Q

The pitiless adapter is located in the

A

Well casing below the frost line

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55
Q

What pipe sizes are under the the term “nominal pipe size”

A

1/8”-12”

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56
Q

This valve can modulate water temperature in a hydronic heating system

A

Mixing valve

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57
Q

Copper tubing sizes are specified by their

A

Nominal inside diameter
Or outside diameter

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58
Q

Which of the following is not a purpose of solder flux
Promote capillary action
Remove oxides
Clean pipe and fitting
Prevent oxidation of the surface being heated

A

Clean pipe and fittings

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59
Q

What tool would be used for tightening a kitchen faucet down to a counter top

A

Basin wrench

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60
Q

What is sensible heat is what

A

Changing of tempature of a substance without changing its state

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61
Q

A pipe measurement is 18 1/2 C – C of elbows if the thread engagement is 5/16 of an inch and the throw is 5/8 of an inch what length of pipe will need to be cut

A

17-7/8ths

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62
Q

A fixture for the purpose of overflow protection that does not receive the regular discharge from other fixtures, appliances, or devices is known as what

A

Emergency floor drain

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63
Q

Any liquid waste other than Clearwater, waste or storm water is known as what

A

Sewage

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64
Q

The horizontal piping included any vertical offsets that conduct sewage, Clearwater waste or storm water to a building sewer is known as

A

Building drain

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65
Q

The unobstructed vertical distance through air between lowest point of water supply outlet, and the flood level rim of a fixture or device into which the outlet discharges is known as

A

Air gap

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66
Q

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air-conditioning equipment and cooled condensate from steam heating systems, but does not include stormwater is known as what

A

Clearwater waste

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67
Q

The size of branch vent is determined by a hydraulic load and

A

It’s developed length from its upper end to the furthest soil or waste pipe that it serves

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68
Q

The length of a continuous vent is determined by

A

Develop length from its connection with a wet vent to where it connects to a stack vent fence stack vent, header or open air

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69
Q

Valve that prevents liquid from flowing back into the drainage system is known as what

A

Back water valve

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70
Q

The condition that would make it necessary to use vent header on a plumbing installation would be

A

Two or more vent stacks

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71
Q

The minimum diameter of individual vent for a 2 inch trap is

A

Inch and a half

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72
Q

The minimum protection for Cross connection control used on an irrigation system that directly connected to the water supply system would be what

A

On atmospheric vacuum breaker

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73
Q

This drafting line indicates alternating positions or moveable parts or future locations of equipment or piping. What is it called?

A

Phantom line

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74
Q

In reference to wire rope clips, the U bolt portion of the clip must always be placed

A

On the dead end of the rope

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75
Q

In a closet tank, the upper lift wire is

A

Attached to the trip lever

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76
Q

Which of the following metals can be classified as ferrous
Copper
Lead
Cast-iron
Bronze

A

Cast iron

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77
Q

When you install mechanical pop-up on a basin, the pull-up rod would be best adjusted toooo

A

So it’s knob is between quarter inch and a half inch above the faucet body when the plug is fully open

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78
Q

Half inch pipe threaded correctly will have an effective thread length of what

A

Half inch

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79
Q

Annealing copper tube means

A

To make it soft

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80
Q

What is destructive to both glass and verified clay pipe?

A

Hydrocflouric acid

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81
Q

We hose and standpipe systems are installed to provide fire protection during construction of the building, they shall be installed…

A

As the building progresses through its construction

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82
Q

Copper tube used on a medical gas system should arrive on site and decreased. If on site cleaning is required, which chemical would you use?

A

Trisodium phosphate

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83
Q

What term means a pipe that connects the waist opening of a fixture to a trap serving the fixture

A

Fixture outlet pipe

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84
Q

The application for a plumbing permit, accompanied by plumbing drawings shall show a layout of the portable water distribution system include what

A

Pipe sizes and valves

85
Q

In A case of conflict between the provisions of the plumbing code in those of a referenced document the:

A

Provisions of the code shall govern

86
Q

Which term means the highest part of the lower interior surface of a trap

A

Trap weir

87
Q

Which term means the vent pipe that is connected at its upper end into a vent header or is terminated in outside air, and that is used to limit the pressure differential and a soil or waste stack

A

Vent stack

88
Q

Which term means a vent pipe that also serves as a soil waste pipe

A

Wet vent

89
Q

The corrosivity of water can best be reduced by

A

Increasing the pH level

90
Q

What is required when a soil or waste stack discharge from fixtures located on more than 11 stories

A

A yolk vent is required

91
Q

Strings, hairs, rags or lint that extend over the wheel of a trap may cause loss of trap seal due to

A

Capillary attraction

92
Q

A urinal flush tank uses the following method to effectively flush

A

Siphonic action

93
Q

Siphonage from a flush valve operated water closet can be prevented by the installation of a vacuum breaker, which would be installed where

A

Between the flush valve and the toilet bowl

94
Q

The trap seal refers to the vertical distance measured from

A

Trap weir to the trap dip

95
Q

Outlets which cause pressure drops should be provided with regulating valves the type of valve most likely used here is what

A

Needle valve

96
Q

If the pressure in a Watermain is 55 psi and a pressure of 15 psi must be maintained at a fixture in a building, which is 50 feet above the main the pressure lost due to friction in the piping between the main and the fixture must be limited to no greater than what

A

18 psi

97
Q

If a 1 inch pipe can supply 5 gallons per minute how many gallons per minute can be supplied by a 3 inch pipe at the same pressure

A

45gpm

98
Q

A deep well jet pump with a partially clogged jet would cause

A

A high vacuum reading on the suction line

99
Q

The purpose of the air dome on a hand operated force pump is to

A

Even out the discharge

100
Q

When a minus pressure is created in a drainage system by the discharging of another fixture loss of trap seal occurs by

A

Momentum Siphonage

101
Q

A Ruffin book is used

A

Finding the Ruffin measurements for the fixtures being installed

102
Q

How does a urinal flush tank operate

A

Intermittent siphon

103
Q

A flush valve is commonly installed in place of a flush tank on a water closet for commercial and industrial use because

A

It has more rapid flushing action

104
Q

Concrete pipe shall not be used where

A

Inside a building above ground

105
Q

Piping and fittings and joints used in pressure, sewer forced main or sump pump Discharge applications shall be capable of withstanding not less than what.

A

1.5 times the maximum potential pressure

106
Q

A shower door shall not open

A

Into the shower stall

107
Q

A minimum trap seal is the depth of

A

38 mm

108
Q

The minimum design rate of flow in a building sewer is considered to be approximately what

A

2 ft./s

109
Q

The name sometimes used to describe a system of piping which carries the waste from drains of the same type(often hub drains, and or sinks) often used in meat packing plants or food processing areas is

A

Trade waste systems

110
Q

When a shallow well pump starts it

A

Reduces atmospheric pressure in the drop pipe

111
Q

The suction lift that a pump can produce depends upon

A

Power of the motor, the diameter of the impeller, the speed of the impeller and atmospheric pressure

112
Q

What condition in water does not contribute to corrosion of the pipe

A

Calcium carbonate

113
Q

The main objective of an air volume control is to

A

Maintain the correct ratio of water and air in the tank

114
Q

Self closing faucets are used essentially to

A

Prevent waste of water

115
Q

A lavatory should not be installed in a place that is liable to be used for washing dishes because

A

Food waste will enter the overflow

116
Q

The tube through which water flows to refill the flush tank of a water closet discharges near the bottom of the tank primarily to prevent

A

Noise

117
Q

What water closet bowl comes in an wall outlet type only

A

Blowout

118
Q

A water closet tank has a tendency to drip condensation on the floor year-round. This could be caused by.

A

A difference between the ambient temperature of the air and the water in the tank

119
Q

Which of the following fixtures would be least affected by high-pressure?
Flush valve of water closet
Shower
Bathtub
Drinking fountain

A

Drinking fountain

120
Q

The term “lead”, in reference to chasers, is

A

A specified angle machine into the chaser to enable dies to start on the pipe
The lead is the WIDEST section of the die that gradually get thinner into the sealing threads. The LEAD is the beginning threads of the die

121
Q

A fixture requiring 103KPA to operate is located 5 m above the pneumatic tank and pump. If 30KPa will be lost through friction, what would the minimum switch setting be?

A

183KPA (27psi)

122
Q

If a 1 inch pipe is replaced with a 3 inch pipe the flow rate will be

A

Nine times as great

123
Q

Excessively high pressure will cause

A

Noisy flow

124
Q

A soil or waste pipe, extending laterally from a solar or waste stack and connecting at its upstream and to two fixture drains in one story would be called

A

A branch

125
Q

The size of an air brake Shall be

A

1 inch or equal to the size of the fixture drain
2.3.3.12.

126
Q

A combined sewer carries

A

Sanitary and storm sewage

127
Q

(6)-22”x18” laboratories are to be evenly spaced between two walls 15’8” apart what is the measurement centre to centre of the lavs

A

31 1/4”

128
Q

The pressure in a sanitary drainage system should not vary more than

A

+/- (1 inch of water column)

129
Q

For cleanliness in public washrooms, the recommendable is what type

A

Elongated

130
Q

If a soil or waste stack passes through two stories and has seven water closet ran into it what is the minimum permissible size of the stack?

A

4 inch

131
Q

Of the following fittings, which one emends flow the most
A coupling
A 22 1/2
45
90

A

90° elbow

132
Q

Every roof shall be securely connected to a leader and provision shall be made for

A

Expansion and contraction

133
Q

Where a water closet is to be mounted to a lead stub. The length of the lead below the floor flange shall be at least.

A

75 mm

134
Q

PVC water pipe and fitting shall not be used for

A

Hot water systems

135
Q

Cast-iron soil, pipe and fittings shall not be used

A

In a water system

136
Q

What would be the minimum number of fixed units allowed for a branch draining washroom with two tank type water closet two basins two floor drains, and one wash type urinal

A

11.5

137
Q

What is the minimum size branch vent for two bathroom groups? If the vent has a developed length of 7 m?

A

Inch and a half

138
Q

What is the maximum number of showerheads that may be served by a single shower drain

A

Six

139
Q

Of the backflow preventer listed what is only suitable as protection against back, siphonage

DCVA
RPBA
AVB
DCDA

A

AVB

140
Q

C.I.S.P shall not be used in

A

Waterlines

141
Q

A relief vent is required under certain conditions when a soil waste stack changes direction vertically more than

A

45°

142
Q

Event must terminate from a fresh air inlet no less than

A

There is no distance specified

143
Q

A relief vent is required when more than how many fixture unit units passed a circuit vented branch

A

Six fixture units

144
Q

A vent stack is required when fixtures draining to a stack from

A

More than four stories

145
Q

Soft tempered tubing shall be supported a is not exceeding intervals less than

A

2.5M

146
Q

Aluminum DWV piping shall be supported at intervals, not exceeding

A

Not specified

147
Q

When a water test is made on a drainage system, the piping shall be kept filled with water for

A

15 minutes

148
Q

When an air test is made on a portable water system, the system shall withstand the air pressure of at least 700 KPa for at least

A

120 minutes

149
Q

The location and grade on a benchmark shown on a site plan denotes the

A

Base point from which level levels are measured

150
Q

If the liquid in a trap is completely syphon due to faulty trap design, this would be an example of

A

Direct siphonage

151
Q

According to the national plumbing code of Canada every trap shall have a minimum trap seal depth of

A

38 mm minimum, no maximum trap seal depth

152
Q

A dime marked as “5/8 NC” would be used for threading

A

Mild steel rod

153
Q

A standard pipe thread is cut at what angle

A

60°

154
Q

A flow switch may be found in which systems

A

Hot water heating
Fire sprinkler
Hose and standpipe

155
Q

A grease interceptor used as a trap for a three compartment pot sink shall be installed so that it’s vent is not more than how far away

A

2.4 m “8 feet“

156
Q

Seals of properly vented legal traps may be broken by

A

Evaporation

157
Q

Venting of a plumbing system is for the purpose of

A

Preventing trap, siphonage, preventing loss of seal by back pressure

158
Q

What sort of dies are not generally used on pipe over 1 inch

A

Drophead

159
Q

What is the process that draws solder into a joint known as?

A

Capillary action

160
Q

What type of waste connection that would be utilized when installing a potato peeler

A

Indirect connection

161
Q

What would be the outcome of a Hydro pneumatic water system that has an undersized expansion tank?

A

Pump with cycle too often

162
Q

Well, there are two types of adapter, configurations used for medical gas system

A

Diameter, index and pin index

163
Q

What is the minimum number of half-inch lines that would be needed to supply the same amount of water as a 1 inch line if they were operating at the same pressure

A

four

164
Q

What type of water metre would be best for measuring volume at high flows?

A

Turbine metre

165
Q

Six laboratories have to be installed in a bathroom. Each lavatory has a dimension of 560 mm x 400 mm. The laboratories are to be equally spaced between the walls that are 4.4 m apart. The outside laboratories are to be half inch the distance from the wall compared to the centre to centre measurement distance between them. If the six laboratories are dual vented, what is the centre to centre measurement between the dual vents?

A

1.47 m

4.4m= 4400m / 6 =733.333 m is the distance of equal spacing multiplied x 2 to find there center to center measurement

166
Q

What is the minimum size of a floor drain that can be unvented

A

3 inch

167
Q

An inch and a quarter and inch and a half and a 2 inch line all enter a sump within a building. What is the minimum size of sump vent

A

2 inch

168
Q

What should be installed below a corporation stop to provide support for the valve and curb stop extension

A

A“chair“ or “shoe“

169
Q

When is it permissible to interconnect a private well with a public water system?

A

Never

170
Q

What is the minimum water seal of a grease inter?

A
  1. Mm

2.4.5.1

171
Q

A grease interceptor should be sized for approximately what percent of the fixtures volume

A

75%

172
Q

What is installed in a grease interceptor to produce Quiescent flow?

A

Baffles

173
Q

An interceptor must be of sufficient capacity to

A

Allow grease to separate from the discharge

174
Q

An interceptor must be of sufficient capacity to

A

Allow grease to separate from the discharge

175
Q

When is an oil or gas interceptor required?

A

When spills could enter the drainage system

176
Q

When would a sand or grit interceptor be installed?

A

When required by the city or municipality

177
Q

What type of material is used in a simple acid neutralizer

A

Limestone

178
Q

Why is it important to keep a grease interceptor as close as possible to the fixture it is serving

A

To minimize the temperature loss of the discharge from the fixture

179
Q

Three types of grease interceptors are manual, semi automatic and

A

Automatic

180
Q

The minimum size vent on an oil interceptor is

A

Inch and a quarter

181
Q

Under freezing conditions, which of the following would be least likely to burst
Type K soft copper tube
Type M hard copper tube
Skid 15 steel pipe
Glass pipe

A

Type K soft copper tube

182
Q

The recommend a pH of waterway strained into a sanitary system is what

A

Between six and 11

183
Q

Which of the following pairs of pipe size share the same thread pitch?
1/8 inch and three-quarter inch
1 inch and 2 inch
Inch and a half - 3 inch
3/8 and inch and a quarter

A

1 inch and 2 inch

184
Q

A sump pump inside a building must have what

A

A airtight cover

185
Q

The minimum size vent for a sewage sump is

A

2 inch

186
Q

Sewage sump shall discharge into what

A

The building drain or the building sewer

187
Q

What is the maximum size for a sewage sump?

A

4 inch

188
Q

Manually operated sewage sump shall be sized to hold sewage for how long of a time

A

24 hours

189
Q

The discharge piping from a sewage sump shall be rated to handle

A

1.5 times the maximum potential pressure of the pump

190
Q

How is the size of the discharge piping from a sewage sump pump determined

A

By the gallons per minute and head, the pump can produce

191
Q

The hydraulic load of a continuous flow fixture, such as a pump shall be

A

31.7 fixture units per litre per second

192
Q

A stormwater sump pump that discharges 2 L per second into a combine building drain will be pumping out how many litres per 15 minutes

A

1800 L per 15 minutes

193
Q

What is the minimum recommended backflow protection for a cold water make up line to boiler system that uses a 50% glycol 50% water mixture

A

RPBA

194
Q

What material is typically used for the construction of fixtures in detention facilities

A

Stainless steel

195
Q

What is used to protect the bubbler of a drinking fountain from contamination?

A

Shield

196
Q

What hot water heating system is easiest for flow balancing

A

Reverse return

197
Q

How much expansion can be expected if 12 m of copper tubing is heated from 6°C to 45°C with a coefficient for copper at 0.000017

A

7.96 mm

198
Q

Which piece of equipment must be installed if a space heating boiler is used to heat domestic water

A

Heat exchanger

199
Q

What would be the correct equipment to be installed on a heat transfer unit?

A

A ball valve, a globe valve, two unions, event and a drain

200
Q

What would be installed between a cooling fan and the fixed piping which is attached to the structure?

A

Isolation and balancing valves and flex connecters with unions

201
Q

What is necessary to be installed on a supply and return piping to a chiller that is mounted on rubber isolation pads

A

Flex connecters

202
Q

The purpose of the high limit on a boiler

A

is to Ensure the boilers safe operating temperature is not exceeded

203
Q

What is usually used to prove water circulation through high mass boiler before the main burner can ignite?

A

Nothing

204
Q

When must the tracer wire be installed with underground gas piping?

A

When it is made of plastic

205
Q

Which of the following would be acceptable as a drain for acid waste
Copper
Ductile iron
“Duriron“
System 15 PVC

A

Duriron

206
Q

If the water pressure to a hose cabinet is found to be too high, you would

A

Install a limiting orifice

207
Q

When pouring concrete onto radiant slab on grade floor panel what must be done?

A

Maintain pressure in the pipe

208
Q

When connecting a SOWS to a horizontal branch that serves a bathroom group upstream of the connecting point, the proper fitting to use would be

A

A wye and a 1/8 bend

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