Howshouldacontractorrefuelequipmentonthejobsiteduringoperatinghours?

A.Continuetoworktheequipmentandfuel

B.Turntheequipmentoffandfuel

C.Runtheequipmentuntilitrunsout

D.Fueltheequipmentduringoffhours

Whatisrequiredbeforeenteringanundergroundconfinedspacewherehazardousgasesaresuspected?

A.Testingwithaproperlysizedrespirator

B.Testingavailablewatersamples

C.Testingtheexhaustsystemforproperfunction

D.Testingtheatmosphereusingsufficientlysensitiveequipmentforanalysis

Agaslineisbeingupsizedtoreplaceanexistinggaspipethatisrunthroughnotchesintheceilingjoistsinahouse.Whatplacementofnew...withoutpriorapproval?

A.Attheendsofthejoistsonly

B.Atthecenterofthejoistsonly

C.Increaseexistingnothingonlyasneeded

D.Notchingisonlyallowedwhenapproved

Acontractorworkinginanolderhomeremovesawaterclosetbecauseaholeisfound

A.Patchtheholewithsilicone

B.Applyleadandoakuminthehole

C.Installanewclosetring,andreplacethewaxring

D.Removetheleadclosetbend,andreplaceitwithsoundmaterial

Theownerofacommercialbuildingstatesthatthetemperatureofthehotwatercomingfromthelavatoryfaucetfluctuates.Whatisaprobably.

Whatmustacontractordowhenthereisanunusedopeninginagravityventsystem?

A.Removetheopeningandreplace

B.Closeallunusedopeningswithducttape

C.Covertheunusedopeningwithplywoodandfoiltape.

D.Closeorcapallunusedopeningstothesatisfactionoftheadministrativeauthority

Howshouldacontractordisposeofusedpipingandfixturesfromaremodel?

A.Contacttheproductmanufacturerfordisposalinformation

B.Returnthepipingandfixturestotheoriginalsup...

C.Contactthelocalsolidwastedisposaldepartment...

D.Placethemintoregulargarbagecollectionbins

Howisexistingpipingthatisbeingalteredinspectedforintegrity?

A.Contactanarchitectforadvice

B.Asktheownerhowlongthepipehasbeen...

C.Cutintothepipetochecktheinterior

D.Taponthepipetoevaluatethesound

Whenmayleaksealingadditivesbeusedinjointpackingonsanitarydrainagerepair

A.Whenthepipeislocatedbelowground

B.Whenthepipeislocatedaboveground

C.Whenitisaminorleak

D.Itisneverpermissible

How should cast iron drain lines be replaced when a section of cast iron bell and spigot pipe leaking?

A. Remove the leaking section and install a new section using transition coupling.

B. Disassemble the pipe from its upper terminal remove the leaking section, and reassemble the...

C. Cover the leaking section with special leak wrap cloth

D. Insert thin wall polyvinyl pipe at the location of the leak

What method should be used to visually test for leaks in a natural gas system?

A. Deionized water

B. Noncorrosive fluid

C. Oxygen

D. Lighter or matches

How should a contractor repair a defective and leaking steel pipe fitting that is buried directly under a building slab?

A. Remove and repair the pipe using dress couplings

B. Replace the defective fitting with a non-corrosive fitting

C. Repair the defective fitting and wrap with protective tape

D. Reroute the piping aboveground in an approved location

A homeowner calls a contractor about a bad smell in the house. What is the most likely cause of the smell?

A. A plugged p-trap

B. A defective air gap

C. A dry p-trap

D. A plugged vent

The office manager of a commercial building calls a contractor on a rainy day to report water flowing down the front of the building inspection finds standing water on the roof and notices that the drain are overflowing. How should the contractor address the present problem?

A. Clear and replace the overflow drain and scupper

B. Locate and remove debris from the overflow drain using a mechanical auger

C. Locate and remove debris from the roof drains using a mechanical auger

D. Remove leaves and debris from the roof gutter

What us required to discharge corrosive liquid chemical waste into the sanitary sewage system?

A. Industrial cast iron pipe and fittings

B. Schedule 40 type L copper and fittings

C. Pretreatment facilities or interceptors

D. municipal permitted fitting

How is mineral buildup cleaned out of a commercial or industrial hot water hydronic loop?

A. Using a chemical injection system with a water bleed off

B. Changing the water in loop once a year

C. Using potable hot water to flush the system

D. Changing the water in the loop once every 3 months

In what type of installation are leaders and conductors used?

A. Storm drainage

B. Vent piping

C. Waste piping

D. Soil piping

What is the requirement for placing automatic trap priming devices?

A. They must be accessible

B. They must be concealed

C. They must be located in the same room

D. They must be located 12’’ above the floor

What is the difference between private and public sewage ejection systems?

A. Public sump pump systems must be dual discharge

B. Public sump pump systems can be single discharge

C. Private sump pump systems must be dual discharge

D. Private sump pump systems must be wired for 110 volts

What is the Minimum size of vent required for a single-pump sewage ejector system on a water closet?

A. 1-1/2’’

B. 2’’

C. 3’’

D. 4’’

What is the minimum distance that a fire sprinkler head can be located from a kitchen range in a house?

A. 12 in

B. 16 in

C. 18 in

D. 24 in

What are two installation orientations for residential fire sprinkler?

A. Top and size mount

B. Upright and vertical mount

C. Top and pendent mount

D. Upright and pendent mount

According to NFPA, residential fire sprinklers without backflow protection in one and two single family dwellings are installed in what type...

A. In a live system

B. In a loop system

C. In a dead system

D. In an H pattern

At what intervals must vertically installed copper pipe be support?

A. At every other floor, not exceed 25’

B. Every 15’

C. Every 12’

D. At each floor, not exceed 10’

What is required for aboveground gas piping?

A. It must be aboveground-rated PE piping

B. It must have a continuous 10 gauge dielectric bond

C. It must be securely support and physically protected

D. It must be located a minimum of 12’’ above the finish grade and securely supported

What fitting must be included if a horizontal drain pipe is rerouted more the five feet?

A. A sanitary tee

B. A cleanout fitting

C. A directional indicator at the end line cleanout

D. A double combo at the first offset

Which of the following requirement applies to installing a union as part of the water supply for a piece of equipment?

A. It must be away from the equipment to prevent turbulence in the flow characteristics

B. It must be less than 5 pipe diameters before or 10 diameters after the equipment

C. It must be within 12’’ of the equipment

D. It must be more than 12’’ away from the equipment

What is required of a water system check valve installed in a vertical position, unless it is of a special design?

A. It must be made of brass

B. It must have a bleed valve

C. It must be followed by a shut-off valve

D. It must be spring-loaded

Which of the following part is required to protect copper piping that is run through framing members within one inch of a special design?

A. It must be made of brass

B. It must have a bleed valve

C. It must be followed by a shut-off valve

D. It must b spring-loaded

What is an approved method for testing plumbing, drainage and vent piping?

A. Use a running water test only

B. Use an air test only

C. Use a standing water test only

D. Use an air or water test

What is the minimum requirement for supporting vertical cast iron no-hub waste pipe?

A. Support at every other floor, not exceed 25 feet

B. Support at the base with thrust blocks and at each floor, not to exceed 20 feet

C. Support at every other joint

D. Support at the base and at each floor, not to exceed 15 feet

Why must trench bottoms be uniformly graded?

A. To allow rain water to uniformly soak into the soil

B. To line with loose soil to prevent damage to the pipe

C. To line with rock before laying the pipe

D. To permit compaction and prevent settlement

What is the MINMUM drainage slope allowed for a 3’’ building sewer line?

A. 1% slope, 1/8’’ per foot

B. 1% slope, 1/2’’ per foot

C. 1-1/2% slope, 3/16’’ per foot

D. 2% slope, 1/4’’ per foot

Where does the homeowner’s responsibility usually start for water service piping to a residential structure?

A. At the inlet of the water meter

B. After the outlet side of the water meter

C. At the entry to the residential structure

D. At the shut-off valve in the service piping

What is the vertical distance allowed above the flood-level rim of a fixture before a vent pipe can offset horizontally...

A. 24 inches

B. 18 inches

C. 12 inches

D. 6 inches

When determining the supply piping size for a hot water system, which of the following pieces of information is NOT....?

A. Minimum daily service pressure

B. Friction loss relative to flow

C. Total hot water supply fixture units

D. Size of the expansion tank