Tier 2 Exam 4

If at the time of testing and inspection leaks, defective or patched materials, or evidence of ________ workmanship is found with the plumbing installation, the inspector shall order that the defective parts or workmanship be removed and corrected A. Unskilled B. Poor C. Inexperienced D. Unqualified

A. Unskilled

the vertical distance measured along a soil or waste stack corresponding in general to a story height, but not less than eight feet in vertical height, and wherein the horizontal branches from one floor or story of a building are connected to the stack is defined as a ___________ A. branch interval B. story height C. vent stack D. soil stack

A. branch interval

the 10-foot section of 8-inch pipe that is passing though the foundation wall that is to connect to the building sewer is defined as the _______ A. building drain B. main drain C. building sewer D. sewer main

A. building drain

businesses solely engaged in work regarding propane installations do not require a ______ license so long as all individuals doing the work hole the proper license A. business B. gasfitters C. master D. company

A. business

the portion of an appliance within which combusting occurs is referred to as the combustion ___________ A. chamber b. burner C. compartment D. box

A. chamber

a document that is issued to indicate modifications to a plan once work has begun on the particular task affected is a _________ A. change order B. revision C. addendum D. RFI

A. change order

_________ drawings are typically illustrated and included on plumbing diagrams A. riser B. offset C. section D. mechanical

A. riser

a ________ is a water supply pipe which extends vertically one full story or more to convey water to branches or to a group of fixtures A. riser B. fixture supply C. fire line D. water main

A. riser

a general term for any vertical line of soil, waste, or vent inside conductor piping which extended beyond at least one branch interval in height A. stack B. main C. leader D. drain

A. stack

_______ is the area of a 1" diameter pipe A. 7.5 B. 0.7854 C. 1.128 D. 14.7

B. 0.7854

site plans are drawn to a relatively small scale such as ______ A. 1/4" = 12 inches B. 1" = 20" C. 1/8" = 1 foot D. 1/2" = 20'

B. 1" = 20"

holes cannot be larger than _________ of the floor joist A. 1/2 the width B. 1/3 the depth C. 1/4 the width D. 2/3 the depth

B. 1/3 the depth

horizontal sanitary drain piping that is 3-inch, 2-inch and 1 1/2-inches in diameter shall be installed with a minimum uniform pitch of _______ per foot A. 1/8" B. 1/4" C. 3/8" D. 1/2"

B. 1/4"

information regarding "clothes dryers" can be located in NFPA-54 chapter _______ A. 5 B. 10 C. 7 D. 12

B. 10

the water shall be kept in the system (or in the portion under test) with all joints and connections proven tight for no less than _______ before the inspection starts A. 10 minutes B. 15 minutes C. 30 minutes D. 60 minutes

B. 15 minutes

upon proper notice of a request for an inspection of the rough plumbing the inspector shall make the inspection within _________ after receipt of such notice A. 1 day B. 2 working days C. 48 hours D. 36 hours

B. 2 working days

How many gallons in one cubic inch of water?

0.00433 gallons

How many pounds in one cubic inch of water?

0.036 pounds

How many pounds in one square inch of water 1 foot high?

0.434 pounds

How many square inches in one square foot?

144 square inches

How many cubic inches in one cubic foot of water?

1728 cubic inches

How many cubic inches in one gallon of water?

231 cubic inches

How many cubic feet in one cubic yard?

27 cubic feet

How many pounds in one cubic foot of water at 39F?

62.5 pounds

How many gallons in one cubic foot of water?

7.5 gallons

How many pounds in one gallon of water?

8.33 pounds

the distance between where a run of pipe starts to change direction and where it returns to its original direction is called the ________ A. parallel B. offset C. alignment D. trueness

A, parallel

all gas piping systems shall be low pressure not in excess of _______ A. 0.5-p.s.i.g. B. 28" water column C. 1.0-p.s.i.g. D. 11" water column

A. 0.5-p.s.i.g.

________ is the constant to be used when determining the travel for 1/16th bends A. 2.61 B. 1.41 C. 2.41 D. 5.02

A. 2.61

one gallon of water is equal to ________ A. 231 cubic inches B. 2.31 feet C. 0.434 PSI D. 62.5 pounds

A. 231 cubic inches

the 2011 edition of the boiler and combustion systems hazards code is ________ A. NFPA-85 B. NFPA-54 C. NFPA-58 D. NFPA-86

A. NFPA-85

a plumber and an apprentice have reached a point in a piping installation that will require them to perform a rolling offset around an HVAC duct obstruction. the rise of the offset has been calculated as 2.5' and the roll dimension is 1.5' the "true offset" dimension that they will be using to avoid the HVAC duct obstruction is ________ A. 8'-6" B. 2'-11" C. 7.75' D. 7'-9"

B. 2'-11" (true offset) squared = (rise) squared + (roll) squared true offset = square root [(rise) squared + (roll) squared)] true offset = square root [(2.5') squared + (1.5') squared] true offset = square root [6.25 + 2.25] true offset = square root [8.50] true offset = 2'-11"

A plumber is being required to remove a vertical water storage tank. The tank has been partially drained but contains an undetermined amount of standing water. the tank is 16 inches in diameter and 5 feet 6 inches high. assume the tank is 5/8 empty. it can be assumed that approximately ___________ gallons of standing water remains in the tank A. 57-59 gallons B. 21-23 gallons C. 35-37 gallons D. 41-43 gallons E. 47-49 gallons

B. 21-23 gallons capacity at 100% = diameter squared (in) * length (ft) * 0.0408 capacity at 100% = (16 squared) * (5.5) * (0.0408) = 57.44 gallons tank is 5/8 empty = tank is 3/8 full 3/8 = 0.375 or 37.5% capacity at 37.5% = 57.44 * 0.375 = 21.54 gallons

one ton of water is equivalent to approximately ________ gallons of water A. 150 B. 240 C. 330 D. 415

B. 240 convert pounds to gallons 1 ton = 2000 pounds 8.33 pounds = 1 gallon 2000 pounds / 8.33 pounds = 240 gallons

30 gallons of water will have an approximate weight of _______ pounds A. 225 B. 250 C. 900 D. 1,875

B. 250 8.33 * 30 = 250 pounds

Loose earth, free of rocks, broken concrete, frozen chunks and other rubble, shall be carefully placed in a trench in _________ layers and tamped in place A. 3" B. 6" C. 9" D. 1'

B. 6"

one cubic foot of water is ______ gallons of water A. 1 B. 7.5 C. 8.33 D. 62.5

B. 7.5

the three inside dimensions of a rectangular tank form a basin that can hold a capacity of water that is equal to 40 gallons the rectangular tanks capacity in terms of cu. in. of water would be _________ A. 11,550 cu. in. B. 9,240 cu. in. C. 4,620 cu. in. D. 2,310 cu. in.

B. 9,240 cu. in. convert gallons to cu. in. 231 cu. in. in one gallon of water 40 gallons * 231 = 9,240 cu. in.

Properly ________ the remaining existing water and waste plumbing connections is considered to "be made water and gas tight" A. Removing B. Capping C. Shutting-off D. Shielding

B. Capping

in any NFPA=54 code, changes, other than editorial are indicated by _______ beside the paragraph, table, or figure in which the change occurred A. a bullet B. a vertical rule C. highlighting D. underlined text

B. a vertical rule

the _________ drawing shows the project's final configuration, including all of the approved changes from addenda, change orders, and RFIs A. coordination B. as-built C. cut-sheet D. submittal

B. as-built

gas piping that conveys gas from a supply line to the appliance is a _______ A. safety shutoff device B. branch line C. quick disconnect device D. gas main

B. branch line

a __________ is a dimensioned drawing that indicates the proposed routing of the components of a plumbing system A. as-built drawing B. coordination drawing C. cut sheet D. shop drawing

B. coordination drawing

which is most false the inspector shall inspect all ______ A. work where a permit is required B. existing systems not directly affected by the plumbing or gas fitting work outlined in the related permit application C. the permit related plumbing and gas fitting work D. portions of existing systems that may be directly affected by the plumbing or gas fitting work outline in the related permit application

B. existing systems not directly affected by the plumbing or gas fitting work outlined in the related permit application

water supply or drainage piping that is installed in an exterior wall, unconditioned space or similar areas shall be protected from _______ A. punctures by nails B. freezing C. physical damage D. solvents/flammables

B. freezing

a _______ required for adjustment of gas appliance controls when said adjustment does not require any changes to the connection to the gas supply or associated piping A. gas permit is ... B. gas permit is not ... C. licensed gas fitter is ... D. gas fitter or plumber is ...

B. gas permit is not ...

as-built drawings serve as the ________ record of a project A. coordination B. permanent C. detailed D. unchanged

B. permanet

when a plan appears to contain an error, or when a question arises about a certain detail, an ________ pointing out the error or question is issued to the architect or engineer A. change orders B. request for information (RFI) C. clarifications D. addenda

B. request for information (RFI)

when calculating the offset using 45-degree elbows, the __________ A. rise is twice the length of the run B. rise and the run are equal dimensions C. run is 50% the length of the travel D. run and travel are equal in length

B. rise and run are equal dimansions

in the event an apprentice leaves the employment of a master plumber or master gasfitter prior to completing their apprenticeship, the master must provide the apprentice a signed ________ A. time of work letter B. statement of experience C. declaration of hours worked D. labor hours worked report

B. statement of experience

clothes dryers that are primarily used in a single or multi-family living environment and may or may not require coins to activate the appliance are classified as ____________ A. category 1 vented appliances B. type 1 C. category IV vented appliances D. type 2

B. type 1

the amount or quantity of heat required to raise the temperature of _______ water _______ Fahrenheit A. 1 gallon, 1 degree B. 1 cubic foot, 1 degree C. 1 pound, 1 degree D. 8.33 pounds, 1 degree

C. 1 pound, 1 degtee

a journeyman plumber and an apprentice are installing 4" hubless cast iron in a 3-story commercial structure. the branch drain is being run horizontally, without any offsets for a distance of 80-feet the minimum code compliant fall/drop for this length of drain is _________ A. 20" B. 15 3/4" C. 10" D. 7 7/8"

C. 10"

upon completion of a section or of the entire water distribution system it shall be tested and proved tight under a pressure not less than _________ A. the available street water service pressure B. 80-p.s.i.g. test for 15 minutes C. 125-p.s.i.g. test D. 2X the available street water service pressure

C. 125-p.s.i.g. test

all habitable buildings must be provided with a means of disposing of sewage is a requirement of basic principle # __________ A. 7 B. 13 C. 16 D. 21

C. 16

when rock is encountered in a trench it shall be removed to a point at least ________ below the grade line of the trench and the trench shall be backfilled to grade with sand tamped in place so as to provide a uniform bearing for the pipe between joints A. 1 inch B. 2 inches C. 3 inches D. 6 inches

C. 3 inches

one cubic foot of water weighs ________ pounds A. 7.5 B. 8.33 C. 62.5 D. 231

C. 62.5

the discharge of _________ to the sanitary drainage system through a (1 1/4-inch pipe in one minute) is known as _________ A. 7 1/2 gallons of liquid, a factor unit B. 2.5 gallons of waste, a fixture unit C. 7.5 gallons of water, a fixture unit D. 1.6 gallons of water, a factor value

C. 7.5 gallons of water, a fixture unit

100 cu. ft. of water is equal to _______ gallon of water A. 100 B. 500 C. 750 D. 1,000

C. 750 7.5 * 100 = 750 gallons

The portion of an appliance designed for the attachment of a draft hood, vent connector, or venting system is a ________ A. Appliance flue B. Draft C. Flue collar D. Vent damper

C. Flue collar

when reading any chapter in NFPA-54 an asterisk following the number or letter designating a paragraph indicates that explanatory material on the paragraph can be found in ________ A. index B. table of contents C. annex A D. the following chapter

C. annex A

when all openings in the sanitary drainage piping system are tightly closed (except the highest opening) the system shall be filled with water to ________ A. 6" above the flood level rim of the highest fixtures B. a level 12" above the highest fixture branch C. the point of overflow D. 1 foot above the trap of uppermost fixture installed in the structure

C. at the point of overflow

any structure being built including tents, which utilize gas on a temporary basis are considered to be _______ A. construction trailers B. mobile homes C. buildings under construction D. carnival concession trailers

C. buildings under construction

an appliance that operates with a non-positive vent static pressure and with a vent gas temperature that avoids excessive condensate production in the vent is known as a __________ A. direct vent appliance B. boiler C. category 1 vented appliance D. gas range

C. category 1 vented appliance

sanitary drainage pipe and fittings that _______ shall not be used in sanitary drainage systems A. produce a computed velocity of discharge of not less than 2 feet per second B. run in straight practical alignment and at a consistent uniform pitch C. create a flow resistance that is greater than the normal frictional resistance D. are 3-inch closet bends or stub to 4-inch

C. create a flow resistance that is greater than the normal frictional resistance

air that enters a draft hood or draft regulator and mixes with the flue gases is referred to as ___________ A. air B. listed C. dilution D. primary

C. dilution

a fixture that is not required in a home, residence or dwelling unit is a ________ A. lavatory B. kitchen sink C. dishwasher D. water closet/ toilet E. no answer is correct

C. dishwasher

oil of peppermint shall be introduced to the sanitary drainage system in the following manner _______ A. remove a water closet inside the building and pour the liquid into the closet bend and seal the drain B. unfasten the main cleanout cover at the building drain and place 1 ounce of liquid in the pipe re-attach the cover C. from the exterior of the building introduce a 1-gallon mixture of peppermint/hot water into the main stack and cap it D. pour a 1-gallon mixture of peppermint/hot water into no less than 2-toilets and flush the contents, monitor the aroma

C. from the exterior of the building introduce a 1-gallon mixture of peppermint/hot water into the main stack and cap it

holes that are drilled in a floor joist or similar structural member when the hole is to be qual to 1/3rd the depth of the member must only be drilled in the __________ A. lower 1/4 of the member B. middle 1/3 of the member C. upper 1/2 of the joist D. 2 inches from the bottom of the member

C. middle 1/3 of the member

the licensed plumber must conduct a _______ to determine if the building drain and the water distribution system will be affected by proposed plumbing work A. smoke test B. nuisance evaluation C. survey D. safety review

C. survey

________ is the liquid that separates from a gas due to a reduction in temperature or an increase in pressure

Condensate

one cubic foot of water is equal to _____ cubic inches of water A. 231 B. 7.5 C. 62.5 D. 1,728

D. 1,728

prior to notifying the inspector for an inspection of the rough plumbing and/or gas the licensee conducts a pre-test of the DWV system with air the gauge used for this test shall be calibrated in increments no greater than _______ of a pound A. 1/2 B. 1/3 C. 1/4 D. 1/10

D. 1/10

plans for a large commercial building may contain more than _______ pages A. 12 B. 25 C. 75 D. 100

D. 100

a steam table that is outfitted with a drain connection in a Chinese restaurant buffet service line would require that basic principle # ______ A. 3 B. 5 C. 7 D. 14

D. 14

the largest hole that could be drilled in the center of a 2 x 8 floor joist would be ________ inches in diameter A. 3 1/2" B. 2 1/8" C. 3 3/4" D. 2 5/8"

D. 2 5/8"

until the crown of the pipe is covered by at least ________ of tampered earth considerable care shall be exercised in backfilling trenches A. 3" B. 6" C. 1' D. 2'

D. 2'

the inspector may review the plans for up to ______ prior to issuing the permit A. 48 hours B. 1 month C. 2 weeks D. 30 days

D. 30 days

when a "gas meter" is the actual "point of delivery" information about the gas meter can be located in NFPA-54 chapter ________ A. 1 B. 3 C. 4 D. 5

D. 5

12 ounces is _______ percent of a pound A. 87.5 B. 25 C. 50 D. 75

D. 75 1 pound = 16 ounces 3/4 pound = 12 ounces 3/4 = 75%

plumbing and gas permits shall become invalid if the plumber has not started the work within ________ of issuance A. 48 hours B. 1 month C. 2 weeks D. 90 days

D. 90 days

Any pipe that is in contact with or that passes through or under a masonry product, concrete product, or any other similar material shall be protected against external damage by application of a protective _________ A. Wrapping B. Coating C. Sleeve D. All answers are correct

D. All answers are correct

digital models of an entire structure and all its components is referred to as ______ A. building information monitoring (BIM) B. virtual building environment (VBE) C. virtual design and construction (VDC) D. all answers are considered correct

D. all answers are considered correct

a receptacle designed to collect surface or storm water from an open area is defined as a ________ drain A. roof B. storm C. leader D. area

D. area

the measurement of the "roll" in a rolling offset is typically a ________ dimension A. vertical B. straight C. height D. horizontal

D. horizontal

a water test shall be applied to a sanitary or storm drainage system of any building ________ A. in its entirety B. by filling the main stacks only C. in sections D. in its entirety or in sections

D. in its entirety or in sections

the outlet of the service meter assembly or the outlet of the service regulator or service shut off valve where no meter is provided is the ________ A. service supply B. gas feed C. fuel source D. point of delivery

D. point of delivery

the air introduced into a burner that mixes with the gas before it reaches the port or ports is referred to as _________ A. air shutter B. excess air C. dilution D. primary

D. primary

A secondhand or previously installed plumbing fixture shall be thoroughly cleansed and _________ before installation

Disinfected

the point of delivery is best defined as the ________ A. outlet of the meter set assembly B. outlet of the service regulator C. service shutoff valve where no meter is required D. appliance shutoff valve when no meter is provided E. a, b, and c are all considered correct

E. a, b, and c are all considered correct

FLAG formula (solving for fall)

Fall = length * grade

FLAG formula (solving for grade)

Grade = fall / length

FLAG formula (solving for length)

Length = fall / grade

the term/acronym "AFF" when used on a plumbing or gasfitting plan means _______

above finished floor

Cross sectional area of a pipe forumla

diameter squared * 0.7854

Capacity of cylindrical pipe (diameter in inches, length in inches)

diameter squared * length * 0.0034

Capacity of cylindrical pipe (diameter in inches, length in feet)

diameter squared * length * 0.0408

Capacity of cylindrical pipe (diameter in feet, length in feet)

diameter squared * length * 5.875

NFPA defines "official" terms used in NFPA-54. where terms are not defined in this chapter or within another chapter, they shall be defined using their ordinarily accepted meanings within the context in which they are used. this term "indicates a mandatory requirement" ___________

shall

true or false subject to compliance with all relevant federal and state laws, the inspector shall, after showing proper identification, have the right to enter any premises for the purpose of conducting an inspection of a plumbing or gas fitting system at such times as may be reasonably necessary to protect the public health

true