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joe > Trade Section > Flashcards

Trade Section Flashcards

1
Q

Slip joint fittings are not allowed at:
A. the overflow pipe from a tub
B. the sink tailpiece
C. a PO (post overflow plug from a lavy)
D. a waste arm or trip arm

A

D

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2
Q

In back-to-back water closets, what fitting would be used?
A. double-hub tee
B. double-hub upright wye
C. Figure 5
D. None of the Above

A

C

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3
Q

On a waste line, what type of fitting can you use?
A.cleanout
B. wye of ¼ bend
C. sanitary tee
D. All of the Above

A

A

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4
Q

What would you use to connect GIP (galvanized iron pipe) to copper?

A. a copper fitting
B. welding
C. brass fitting
D. a special aluminum fitting

A

C
dielectric is best. brass next best-purpose to prevent electrolysis

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5
Q

One gallon of water weighs:

A. 9.33 lbs.
B. 8.33 lbs.
C. 7.33 lbs.
D. 6.33 lbs.

A

B 8.33lbs.

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6
Q

One psi of water is equal to:

A. 2.31 feet
B. 2.00 feet
C. 4.41 feet
D. 3.00 feet

A

A 2.31 feet

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7
Q

The specific gravity of water is:

A. 0.1000
B. 0.010
C. 0.001
D. 1.000

A

D 1.000

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8
Q

In a solar system, where do you place a pump valve?
A.one the return side of the system
B.supply and service side of pump
C. supply side of pump
D. service side of pump

A

B

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9
Q

In a solar system cross-connections are used if:
A. Never
B. if it is a closed-loop system
C. Always
D. if it is a open-loop system

A

B

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10
Q

How many square feet would a family of six require if a family of four requires 48 sq. ft. of solar panels?
A. 78
B. 72
C. 60
D. 62

A

B

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11
Q

A 2 inch vent will suffice for:

A. 4 pedestal urinals
B. 25 lavatories
C. 18 residential sinks
D. 16 showers

A

A

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12
Q

A dental cuspidor has how many fixture units?
A. 2
B. 3
C. 4
D. 1

A

D

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13
Q

In water piping, slip joints may be used in the ___ fixture____.
A. concealed - return
B. exposed - return
C. concealed - supply
D. exposed - supply

A

D

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14
Q

What do you do in a restaurant to install a new water softener?
A. use a full bypass
B. use a check valve
C. mount it on concrete
D. backwash disposal must be sized by a building authority

A

D

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15
Q

How is pressure affected when a water softener is installed?
A. decreases
B. is not affected
C. increases
D. A and B

A

A

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16
Q

A single trap may receive the waste from a:
A. kitchen sink and clothes washer
B. laundry tub and clothes washer
C. kitchen sink and laundry tub
D. None of the Above

A

B

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17
Q

When permitted for special conditions, which of the following traps may be installed?
A. bell
B. drum
C. full “S”
D. Crown vented

A

B

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18
Q

What provision must be taken when installing drawn brass tubing traps not less than 17 B & S gauge on fixtures discharging liquid wastes?

A. traps used only in single family residences
B. traps exposed and readily assessable
C. traps not used in condos
D. traps installed 1 foot above grade

A

B

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19
Q

In swimming pools, where can you use copper pipe?

C. all lines
A. suction line
B. high pressure line
D. in gutters

A

C

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20
Q

In swimming pools, where can you use copper pipe?

C. all lines
A. suction line
B. high pressure line
D. in gutters

A

C

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21
Q

On building drains, what type of pipe is not generally used?
A. copper
B. cast iron
C. plastic
D. brass

A

D

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22
Q

The heaviest copper pipe is:

A. Type L
В. Туре М
С. Туре К
D. Type DWV

A

C

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23
Q

Where can copper tubing be connected to a ½/ inch copper 90° ell?
A. in four directions
B. at one end
C. at both ends
D. at two ends and the middle

A

C

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24
Q

On a gas supply line to a water heater, ⅜ inch copper tube is permissible.
A. False
B. True

A

A

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25
Q

Which of the following is TRUE?
A. red stripe - L
B. blue stripe - DWV
C. yellow stripe - M
D. green stripe - K

A

D

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26
Q

When cutting pipe, why is reamer used?
A. to strap the pipe
B, to remove internal burrs
C. to thread pipe
D. to flare the pipe

A

B

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27
Q

Which of the following is used to thread pipe?
A. wrench
B. dies
C. reamer
D. None of the Above

A

B

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28
Q

What are anti-siphoning devices used for?
A. cross connections
B. thermo-siphoning systems
C. potable water systems
D. None of the Above

A

C

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29
Q

How is plastic adapted to cast-iron bell and spigot?
A. oakum with lead wood
В. ероху
C oakum with cold-poured lead
D. approved lead-joint plastic adapter

A

D

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30
Q

To cut plastic pipe, use a:
A. hacksaw
B. tube-cutter with special wheel
C. chainsaw
D. handsaw with 6 teeth per inch

A

C

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31
Q

On flat-sided nuts and bolts, what sort of wrench would you use?
A. strap
B. channel locks
C. open-end pipe
D. chain ratchet

A

C

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32
Q

What is used to bend soft copper tubing?
A. pipe wrench
B. torch
C. dummy
D. spring bender

A

D

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33
Q

What is a yarning iron used for?
A. no-hub
B. hub pipe
C. knitting
D. brazing

A

B

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34
Q

A torque wrench for a no-hub coupling should release at:
A. 120 inches/lb.
B. 80 inches/Ib.
C. 100 inches/lb.
D. 60 inches/lb.

A

D

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35
Q

On chrome fittings, what sort of wrench would you use?
A. strap
B. plastic
C. pipe
D. vice

A

A

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36
Q

On nickel-chrome pipe fittings what sort of wrench would you use?
A. plastic
B. strap
C. vice
D. pipe

A

B

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37
Q

On plastic fitting, what sort of wrench would you use?
A. pipe
B. strap
C. plastic
D. vice

A

B

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38
Q

How far does ¾ inch brass pipe 100 feet long expand with a 100° F rise in temperature?
A. ¾ inch
B. 1 inch
C. 1 ½ inch
D. 1 ¼ inch

A

D

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39
Q

How far does ¾ inch steel pipe 100 feet long expand with a 100°F rise in temperature?
A. ¾ inch
B. 1 inch
C. 1 ½ inches
D. 1 ¼ inches

A

A

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40
Q

After a 100° F rise in temperature, which type of plastic pipe expands 3 ½ inches per 100 feet?
A. PVC
B. ABS
C. polyethylene
D. polypropylene

A

A

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41
Q

What is the relationship of PVC to that of steel pipe?
A. equal to
B. less than
C. greater than
D. PVC does not expand

A

C

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42
Q

Which of the following has the greatest expansion of pipe?
A. plastic
B. brass
c. copper
D. steel

A

A

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43
Q

A connector with side-threaded female arms on one end and a threaded male on the other is called a:
A. field tee
B. bushing
C. drop ell
D. connector

A

A

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44
Q

An aspirator is a device that creates:
A. a negative pressure and sucks up liquid
B. a positive pressure and sucks up liquid
C. a negative pressure only
D. a positive pressure only

A

B

45
Q

What is the difference between a standard crushed-rock drainfield and a tile field?
A. pitch
B. function
C. material in field
D. length

A

C

46
Q

What is a pressure-type vacuum breaker used for?
A. control water pressure
B. prevent back-siphoning
C. develop a vacuum
D. eliminate waterhammer

A

B

47
Q

What is it called when a plumbing fixture is filled with water to the top rim?
A. overflowing
B. backflowing
C.flooded
D. None of the Above

A

C

48
Q

On a steam condensate return line, which is best to use?
A. bell reducer
B. eccentric reducer
C. either A or B
D. None of the Above

A

B

49
Q
  1. To prevent damage of piping due to structural settlement, install:
    A. rigid hangers
    B. plumber’s loop
    C. swing joints
    D. return bend
A

C

50
Q

A percolation test is a test to determine:
A. the drain field under a concrete foundation
B. whether the soil is porous enough to absorb effluent water and waste
C. the vapor barrier
D. the boiling point of materials

A

B

51
Q

A pipe connecting upward from a soil or waste stack to a vent stack for the purpose of preventing pressure changes in the stacks is called a:
A. vertical stack
B. upright hub
C. yoke vent
D. None of the Above

A

C

52
Q

In a venting system, vent connector connects:
A. an appliance to a vent
B. vent to drain
C. a fixture trap to vent
D. vent to vent stack

A

A

53
Q

The ends of plastic pipe are roughed up:
A. for a better fit
B. make fitting go in easier
C.to remove the gloss
D. insure uniform flow of cement

A

C

54
Q

What should be done when joining plastic pipe?

A. make sure cement flows freely
B. wait for one minute after applying cement
C. hammer fittings together
D. None of the Above

A

A

55
Q

How long should you wait after cementing the last plastic pipe joint before testing?
A. 1 hour
B. 3 hours
C. 2 hours
D. 4 hours

A

A

56
Q

How should you compensate for expansion of an ABS plastic vertical stack?
A. expansion joints
B. use no-hub coupling
C. anchor in walls
D. strap it down firmly

A

A

57
Q

At what intervals should polybutylene be supported when hanging it?
A. 12 inches
B. 24 inches
C.36 inches
D. 50 inches

A

C

58
Q

To connect polybutylene pipe, what type of joint is used?
A. butt fusion
B. solvent weld only
C.compression joint
D. Both A and C

A

D

59
Q

Polybutylene pipe is produced in what color?

A. black
B. white
C. gray
D. All of the Above

A

D

60
Q

What type of plastic pipe is used when it needs to withstand temperatures of 220°F?

A. PVC
B. CPVC
C. PB
D. FRP epoxy

A

D

61
Q

Which plastic pipe is approved for hot water high-pressure piping!
A. PVC
B. PB
C. PE
D. styrene-rubber

A

B

62
Q

Water hammer is virtually eliminated with:
A. ABS
B. PB
C. CPVC
D. PVC

A

B

63
Q

Over plastic sewer and water pipe, what is the minimum earth coverage needed?
A. 8 inches
B. 2 inches
C. 6 inches
D. 12 inches

A

D

64
Q

When a layer of gravel or equally pervious material four feet thick is found, the depth of the cesspool below the inlet need not be more than:
A. 8 feet
B. 5 feet
C. 20 feet
D. 10 feet

A

D

65
Q

When a layer of gravel or equally pervious material four feet thick is found, the depth of the cesspool below the inlet need not be more than:
A. 8 feet
B. 5 feet
C. 20 feet
D. 10 feet

A

D

66
Q

The developed length between the trap of a water closet and its vent shall not exceed:
A.5 feet
B. 6 feet
C. 10 feet
D. 15 feet

A

B

67
Q

How far above ground must galvanized wrought iron or galvanized steel pipe be kept? At least:
A. 4 inches
B. 6 inches
C.12 inches
D. 2 inches

A

B

68
Q

Which of the following dimensions represents the limits of clothes washer standpipe above its trap?
A. 12-18 inches
B. 18-36 inches
C. 24-30 inches
D. 18-30 inches

A

D

69
Q

An atmospheric vacuum breaker should be installed a minimum of _____above grade.
A. 6 inches
В. 3 inches
C. 18 inches
D. 12 inches

A

A

70
Q

When a sewer line is nonmetallic, a water service pipe in the same ditch must have a minimum clearance of __.
A. 12 inches
B. 18 inches
C. 24 inches
D. 6 inches

A

A

71
Q

What is the longest length of horizontal drainage pipe allowed before a cleanout is required?
A. 100 feet
B. 75 feet
C. 125 feet
D. 50 feet

A

A

72
Q

How high should the water inlet be when roughing-in a wall-hung urinal?
A, 52 inches
B. 48 inches
C.54 inches
D. 50 inches

A

C

73
Q

How high should the waste outlet be from the floor when roughing-in a wall-hung urinal?
A. 12 inches
B. 11 ½ inches
c. 10 inches
D. 12 ½ inches

A

B

74
Q

How far should the face of the ¾ inch spud be from the wall when roughing in a urinal?
A. 3 inches
B. ½ inch
C. 1 inch
D. 2 inches

A

D

75
Q

How thick must lead bends and lead traps be?
At least:
A. 1/8 inch
B. 3/16 inch
C. 1 mil
D. 1/16 inch

A

A

76
Q

How much does ¾ inch (ID) lead pipe weigh per foot?
A.3
B. 5
C. 7
D. 4

A

A

77
Q

When working with hot lead, before you dip the ladle into hot lead, you should:
A. cool the ladle
B. dip the ladle in cold water
C. dip the ladle in hot water
D. heat the ladle over dry heat

A

D

78
Q

Solder for lead joints is___% tin and___% lead.
A. 80% and 20%
B. 60% and 40%
C. 70% and 30%
D. None of the Above

A

B

79
Q

When making up a lead joint, how far from the end should you clean lead pipe?
A. 2 inches
B. 1 inch
C.4 inches
D. 3 inches

A

C

80
Q

Which of the following may be used when bending lead pipe?
A. a beer bottle
B. running rope
C. a spring bender
D. hot sand

A

D

81
Q

Sheet lead in shower pans must be at least how many pounds per sq. ft.?
A. 5
B. 6
C. 4
D. 7

A

C

82
Q

Sheet lead for flashings or vent terminals must be at least:
A.5
B.2
С. 3
D. 4

A

C

83
Q

Cast-iron pipe can be used for:
A. acid waste systems
B. water lines
C. gutter drains
D. pressure lines

A

C

84
Q

Which pipe requires the least amount of fittings per run?
A. cast iron
B. copper
C. PVC
D. clay

A

A

85
Q

Cast iron pipe in a swimming pool can be used for:
A.pressure line
B. gutter lines
C. nowhere
D. suction line

A

B

86
Q

The standard gap in the oakum in cast-iron pipe is:
A. 3 inches
B. ½ inch
C.1 inch
D. 2 inches

A

C

87
Q

The standard depth of the lead in cast-iron pipe is:
C. 3 inches
A. 2 inches
B.1 inch
D. ½ inch

A

B

88
Q

To cut cast-iron pipe, what tool would you use?
A. cold chisel
В. heavy duty pipe cutter
C.ratchet cutter
D. straight snips

A

C

89
Q

On what pipe would you NOT use a wheel cutter?
C. steel
A. brass
B.cast iron
D. copper

A

B

90
Q

What method is used to join cast iron to copper
DWV pipe in a waste and vent system?
A. solder
B. neoprene coupling
C. threaded
D. no-hub coupling

A

D

91
Q

To join cast iron to copper on a waste and vent system, use:
A. PVC
B. lead and oakum
C. brass coupling
D. no-hub coupling

A

D

92
Q

Where would you look up requirements for a drain or leach system in the UPC?

A. Appendix D: Rainwater systems
B. Appendix B: Explanatory Notes on Combination Waste and Vent Systems
C. Appendix I: Private Sewage Disposal Systems
D. Appendix A: Recommended Rules for Sizing the Water Supply System

A

C

93
Q

The inspection of gas piping that includes a determination that the gas piping size, material, and installation meet code requirement is called a:
A. topout inspection
B. gas company inspection
C. final piping inspection
D. rough piping inspection

A

D

94
Q

The static water pressure at the water meter is 80 psi. What would be the static pressure at a supply outlet 40 feet above the meter?
A. 40 psi
B. 80 psi
C. 60 psi
D. 120 psi

A

C 40’ x 1/2psi = 20 psi

80 - 20 = 60

95
Q

The inspection of a plumbing system prior to covering walls and floors is called a:
A.site inspection
B, rough inspection
C. routine inspection
D. hydro inspection

A

B

96
Q

The CSI classifies plumbing in what division of the building trades?
A.Division #15
B. Division #13
C. Division #16
D. Division #14

A

A

97
Q

What is used to join a short gap in galvanized pipe?
A.bushing
B.union
C. coupling
D. nipple

A

B

98
Q

Where can galvanized pipe not be used?
A. for water
B.gutters
C.for above-ground drainage
D. if there is acid in the water

A

D

99
Q

How do you seal threaded galvanized pipe so it won’t leak after you have made it up?
A. linseed oil
B. red or white lead
C. Portland cement
D. oakum

A

B

100
Q

What causes excessive noise in pipes?
A. pipes not properly strapped or secured
B. air chamber not functioning properly
C. A or B
D. None of the Above

A

C

101
Q

How do you locate a leak in gas piping? A.applying an acid solution
В.applying soapy water to the piping exterior
C.striking a match
D. smelling for gas

A

B

102
Q

If you find a defect in gas piping or fittings, you must:
A.flood the interior with strong acid
B.repair the defective piece
C.remove the defective piece and replace it
D. flood the interior with hot solder

A

C

103
Q

What is the probably the cause if a flushometer valve fails to shut off?
A.water is muddy
B.water pressure is too high
C.relief valve failed
D. bypass orifice failed

A

D

104
Q

What causes water to surge when you open a faucet in an old house and then stop?
A. water hammer
В.wrong pipe size
C.restriction in the pipe
D. unsolvable problem in old houses

A

C

105
Q

What should you do first if you have a leak at fitting in a water line under a house? (assume copper or PVC)
A. stuff bread in the line
B.stuff putty in the line
C.smear soap over the leak
D. drain the building system

A

A

106
Q

What should you do first if you have a leak at fitting in a water line under a house? (assume copper or PVC)
A. stuff bread in the line
B.stuff putty in the line
C.smear soap over the leak
D. drain the building system

A

A

107
Q

What is most likely the reason for low pressure in a steam pipe?
A. wrong type of pipe
B. poor pipe wrapping
C. pipe too old
D. wrong direction of flow

A

C.

108
Q

What causes noise in a steam line?
A. radiator not level
B. controlling flow of steam with a valve at the radiator
C. sagging line
D. All of the Above

A

C

joe (4 decks)

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