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Texas Plumbing Tradesman Exam > Tradesmen > Flashcards

Tradesmen Flashcards

1
Q

Is an elevation mark on a vacuum breaker setting the minimum elevation at the device that can be installed above the flood level rim of a fixture

A

Critical Level

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2
Q

Is an actual or potential tie between potable water and any source of pollution or contamination

A

Cross connection

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3
Q

A measurement of piping taken along the centerline of pipe and fittings

A

Developed length

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4
Q

Any pipe that conveys wastewater in the drainage system

A

Drain

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5
Q

The upper rim of a fixture where water will overflow

A

Flood level rim

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6
Q

Is a wastepipe that drains through an air gap to the drainage system

A

Indirect waste

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7
Q

A pipe installed to vent one fixture trap. It may connect to the vent system above the fixture or terminate in the open air.

A

Individual vent

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8
Q

Is the primary or principal pipe to which branches are connected

A

Main

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9
Q

Is the vertical distance between the opening of the water supply and the flood level rim of a receptacle

A

Air gap

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10
Q

Any part of the piping system except mains, stacks, and risers

A

Branch

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11
Q

A vent connecting individual vents with a stack or vent stack

A

Branch vent

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12
Q

Is the lowest part of the drainage system which receives waste from soil and waste pipes and connects to the building

A

Building drain

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13
Q

Is a drainage piping that conveys waste from the building drain to the public sewer or disposal system

A

Building sewer

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14
Q

Access opening in the drainage system used to remove obstructions

A

Clean out

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15
Q

Two or three compartment sink drained by a continuous waste connected to one trap

A

Combination fixtures

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16
Q

Is horizontal wet venting system for a sink and floor drains

A

Combination waste and venting system

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17
Q

This is water that is sufficiently free of impurities to meet public health standards

A

Potable water

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18
Q

Is a drainpipe conveying sewage containing fecal matter

A

Soil pipe

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19
Q

Is the extension of a soil or waste stack above the highest fixture served

A

Stack vent

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20
Q

Is a device that provides a water seal to prevent the passage of sewer gas and allow the passage of waste

A

Trap

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21
Q

Distance from the weir to the top of the dip of the trap

A

Trap seal

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22
Q

Is a backflow preventer that allows air to vacuum being pulled in a system

A

Vacuum breaker

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23
Q

A vertical vent pipe to provide circulation of air to and from the drainage system

A

Vent stack

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24
Q

Pipe that makes an angle of 45 degrees or more with the horizontal

A

Vertical pipe

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25
Q

Manufactures ________ must be on each _______ of pipe and each fitting, _____, fixtures, and device.

A

Identification, length, trap.

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26
Q

Pipes shall be ________ from breakage when passing under or through walls.

A

Protected

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27
Q

Copper must be supported horizontally- how many feet? On a small pipe?

A

6 feet or closer

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28
Q

Copper must be supported horizontally- how many feet? On 1 1/2” or larger?

A

10 feet

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29
Q

The drainage pipe shall be tested with a ___ ____ ____ or ___ at __ PSI

A

10 foot head of water or air at 5 PSI

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30
Q

Plumbing _______ must be made of approved, smooth, impervious material.

A

Fixtures

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31
Q

Water closets shall be set no closer than ____ inches center to center or ____ inches from a side wall.

A

30, 15

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32
Q

Water closets screws and bolts shall be _____

A

brass

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33
Q

Joints where fixtures contact walls and floors shall be sealed _____.

A

watertight

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34
Q

Overflows, if on a fixture must drain to the ______ (fixture) side of a trap.

A

inlet

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35
Q

Access must be provided to concealed ____-_____ connections.

A

slip-joint

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36
Q

Water closet tanks shall consume no more than _____ gallons per flush and have an ___-_____ ball cock with a refill tube to refill the _____ _____.

A

1.6, anti-siphon, trap seal

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37
Q

__-inch by __-inch water closet bend is acceptable.

A

4, 3

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38
Q

The shower must be at least ___ inches inside dimensions.

A

30

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39
Q

The water supply shall be a minimum of __ inch and have a pressure of no more than __ PSI.

A

3/4, 80

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40
Q

Water hammers caused by high velocity, quick-closing valves, air tanks, and pumps shall be controlled by ______ ________ ________.

A

water hammer arrestors

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41
Q

Copper water service pipe must be a minimum of type ___.

A

M

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42
Q

All pipes must be _______ to the full inside ________ of the pipe to prevent __________.

A

reamed, diameter, turbulence

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43
Q

Pipe joint compound shall be applied to _____ threads only.

A

male

44
Q

Joints in PVC are made with solvent _______ and ______ primer.

A

cement, purple

45
Q

The water supply shutoff valve must be installed on the ______ to each fixture.

A

supply

46
Q

Cross connections must have ____ ______ or protective devices installed.

A

air gaps

47
Q

Minimum / inch per fall on all _ / inches or smaller pipe.

A

1/4, 2 1/2

48
Q

Hub and spigot joints in cast iron are made with ______ or _____ and lead (_______ ______).

A

oakum, hemp, caulked joint

49
Q

Cast iron to plastic pipe joints shall be made by _______ or __________ compression joints.

A

caulked, mechanical

50
Q

Drilled, tapped, or ______-type joints are ________.

A

saddle, prohibited

51
Q

Cleanout plugs shall be made of _____ or _______.

A

brass, plastic

52
Q

A clearance of no less than ____ inches must be provided for rodding on 6-inch cleanouts and smaller.

A

18

53
Q

Water closets must use a maximum of ____ gal/flush

A

1.6

54
Q

Change of direction from vertical to horizontal must be made by _____ ______ fitting.

A

long turn

55
Q

Trap seals shall be protected from _____ ______ and _______ by vents and pressure the same as the outside air.

A

back pressure, siphonage

56
Q

_______ shall be used to seal the _____ watertight where it passes through the _____.

A

Flashing, vent, roof

57
Q

Vents shall terminate at least ___ feet horizontally or __ feet above all openable doors and windows.

A

10, 2

58
Q

Vents shall be graded back to the drainage _____ at the fixture it serves.

A

pipe

59
Q

Vents must rise vertically to _ inches above the flood level rim of the _____ fixture served before turning ____.

A

6, highest, hotizontal

60
Q

Vents must be connected ______ the center line of the _______ pipe.

A

above, horizontal

61
Q

Distance from _____ to _____ is set by charts (trap arms).

A

trap, vent

62
Q

Trap arms cannot fall more than ___ pipe diameter (connect with san-tee, not wye or comb)

A

one

63
Q

A fixture _____ shall connect above the weir of the fixture trap.

A

vent

64
Q

_____ _____ are prohibited.

A

Crown Vents

65
Q

Vents must not be installed within ___ pipes diameters of the trap weir.

A

2

66
Q

A ____ vent is also a waste. (Only allowed on the _____ on the same floor).

A

wet, fixtures

67
Q

The minimum size vent by the table is _ / inches. The size is determined by the fixture _____ being vented and developed length. The ____ the vent the longer it can be.

A

1 1/4, units, larger

68
Q

Each fixture must be trapped with a ______ trap located as close as possible to the ______ outlet.

A

separate, fixture

69
Q

The ______ distance cannot be over __ inches from the outlet of the fixture to the ____ weir.

A

vertical, 24, trap

70
Q

No double _______. (No house trap)

A

trapping

71
Q

Traps must be self-_____.

A

scouring

72
Q

No crown-vented traps, ____ traps, drum traps, or _-traps.

A

bell, s

73
Q

Trap seals _ inches to _ inch. Less will evaporate and a deeper seal causes too little _____.

A

2, 4, velocity

74
Q

Traps that may ________ need a trap _____ to keep the seal full.

A

evaporate, primer

75
Q

Air provided to replace exhausted air.

A

Air makeup

76
Q

A change involving extension, addition, or change to the arrangement, type, or purpose of installation.

A

Alteration

77
Q

Heat required to raise 1 pound of water at 1 degree F (British thermal units)

A

BTU

78
Q

The minimum distance through air measured between a heated surface and a combustible material.

A

Clearance

79
Q

Appliance that derives combustion air directly from the outside and discharges all flue gases to the outside.

A

Direct Vent Appliance

80
Q

Low point in the system to collect condensate and allow for removal.

A

Drip leg

81
Q

Natural, liquefied petroleum, manufactured gas or a mixture of these.

A

Fuel Gas

82
Q

Burners, burner igniters, or electrical switches capable of igniting flammable vapor.

A

Ignition source

83
Q

Propane propylene, butanes, or butylene’s or mixtures of these that are gas at normal pressure but liquid under moderate pressure.

A

LP Gas

84
Q

A gas-tight joint obtained by mechanically tightening to metal surfaces, including flanged flared, thread compression joint.

A

Mechanical joint

85
Q

A pipe or conduit for conveying combustion products and air to the atmosphere.

A

Vent

86
Q

Test with _____ or inert gas, never oxygen.

A

Air

87
Q

Before acceptance and operation, all piping shall be ________, and ________ tested.

A

inspected, pressure

88
Q

All ______ shall be left exposed for testing.

A

joints

89
Q

Test for not less than __ minutes at _ / times the maximum working pressure but not less than 3 P.

A

10, 1 1/2

90
Q

There shall be a shut off valve no further than _ feet from each appliance and shall be readily _________ in the same room.

A

6, accessible

91
Q

If the system serves more than one building, a ______ shall be installed outside of each building.

A

shutoff

92
Q

Minimum support spacing for 1/2 inch pipe?

A

6 feet

93
Q

Minimum support spacing 3/4” or 1” pipe

A

8 feet

94
Q

Minimum support spacing for 1 1/4” or larger horizontal?

A

10 feet

95
Q

Minimum support spacing for 1 1/4” or larger vertical?

A

Every floor level

96
Q

Vents must rise a minimum of _ feet vertically and _ feet above any part of the building within _ feet.

A

5, 2, 10

97
Q

Vents must terminate with an approved ___ that is installed to meet manufacturers instructions.

A

cap

98
Q

Temperature and pressure relief valves are installed to ______ excessive temperature and pressure to prevent an explosion.

A

prevent

99
Q

Temperature and pressure relief valves must be within the top _ inches of the tank.

A

6

100
Q

_____ valves are required on all water heaters (gas and electric)

A

Relief

101
Q

Maximum temperature of _____ (on the valve)

A

210

102
Q

T & P discharge piping must be _____ for hot water with _____ or _____ piping?

A

Rated, copper, cpvc

103
Q

T&P discharge piping must terminate _” above grade.

A

6

104
Q

Must fall to the ______ of the building. (Not a pan)

A

outside

105
Q

Not trapped (down hill)

A

T & P discharge piping

106
Q

T & P discharge piping must be full size?

A

3/4”

Texas Plumbing Tradesman Exam (1 decks)

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