JOURNEYMANS TEST 3 2024-2025. ALL QUESTIONS & CORRECT, VERIFIED ANSWERS. ALREADY GRADED A+, Exams of Building and Prefabrication

Download JOURNEYMANS TEST 3 2024-2025. ALL QUESTIONS & CORRECT, VERIFIED ANSWERS. ALREADY GRADED A+ and more Exams Building and Prefabrication in PDF only on Docsity! JOURNEYMANS TEST 3 2024-2025. ALL QUESTIONS & CORRECT, VERIFIED ANSWERS. ALREADY GRADED A+ 248 CMR 7.00 covers commercial and industrial boilers larger than __________ BTUs. Selected Answer: Incorrect [None Given] Answers: a. 600,000 b. 400,000 c. 500,000 d. 300,000 Response Feedback: MFGC 4.03 (5) - ANS400,000 A ________________ is a fitting that has an elongated Hub and is used to repair or replace a piece of a Service Weight or Extra Heavy Cast Iron Selected Answer: Incorrect [None Given] Answers: a. Cast Iron Manoff b. Kaefer Fitting c. Sisson Joint d. Brass Caulking Ferrule - ANSSisson joint A Bathtub trip waste and overflow must be (when made of metal) non corrosive and have a thickness greater than or equal to _____ gauge Selected Answer: Incorrect [None Given] Answers: a. 17 b. 16 c. 12 d. 20 - ANS17 gauge A combustion high and low pressure switch is required for boilers over ___________. Selected Answer: Incorrect [None Given] Answers: a. 600,000 b. 1 million c. 400,000 d. 500,000 Response Feedback: 7.03 (11) (D) 1 Page 61 - ANS1 million A cubic foot of natural gas contains _________ BTU's. Selected Answer: Incorrect [None Given] Answers: a. 2,500 b. 1,800 c. 1,000 d. 2,000 - ANS1,000 A distance 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. Selected Answer: Incorrect [None Given] Answers: a. Battery Group b. Branch Vent c. Brach Interval d. Hydraulic Jump - ANSBranch interval A gas system over 5 million BTU's requires ______________. Selected Answer: Incorrect [None Given] Answers: a. gas inspectors permission b. permission for the DPW c. state gas investigators permission d. Massachusetts Registered Professional Engineer - ANSEngineered A listed combination gas and solid fuel burning appliance connected to a single chimney flue shall be equipped with a _________________. Selected Answer: Incorrect [None Given] Answers: a. manual reset device in the event of a backdraft b. not according to code c. special design to draft d. clean out door at the bottom of the chimney Response Feedback: NFPA 54 12.6.5.3 - ANSManual reset device A shuttle or trap door opening to gain access to a roof shall be a minimum of _____________________. Selected Answer: Incorrect [None Given] Answers: b. 6,000 hours c. 5,100 hours d. 4,900 hours Response Feedback: 11.02 (3) (B) 1 - ANS5100 hrs Any fixture or piece of equipment to be indirectly wasted that has a waste outlet smaller than ____ inches in diameter shall be connected to an indirect waste pipe one size larger than said outlet. Selected Answer: Incorrect [None Given] Answers: a. 1 1/2" b. 3/4" c. 1" d. 1 1/4" Response Feedback: 10.12:(5)(b).2 Pg 162 Any fixture or piece of equipment to be indirectly wasted that has a waste outlet smaller than 1 1/4" inches in diameter shall be connected to an indirect waste pipe one size larger than said outlet. - ANS1 1/4" Any group of two or more similar fixtures, that are adjacent, which discharge into a common horizontal waste or soil branch. Selected Answer: Incorrect [None Given] Answers: a. Fixture Battery b. Battery Venting c. Bathroom Group d. Soil Stack - ANSFixture Battery Atmospheric testing is required before workers enter an excavation greater than ____ feet in depth where an oxygen deficiency or a hazardous atmosphere is present or could reasonably be expected. Selected Answer: Incorrect [None Given] Answers: a. 5' b. 8' c. 6' d. 4' - ANS4' Burners having a firing rate per combustion chamber 1 million BTUs per hour and over shall be equipped with a proven ____________. Selected Answer: Incorrect [None Given] Answers: a. intermittent start b. double acting start c. positive start d. low fire start Response Feedback: 7.03 (6) (C) - ANSLow fire start Burners having a firing rate per combustion chamber of 2.5 million BTUs per hour over shall be provided with a _____________. Selected Answer: Incorrect [None Given] Answers: a. combustion control b. automatic fuel control c. extra stress control d. flame control Response Feedback: 7.03 (6) (D) - ANSCombustion control Can natural and LP gas be installed within the same building? Selected Answer: Incorrect [None Given] Answers: a. not under any circumstances b. with State Board approval c. if you got a letter from the gas supplier and fire department d. with the inspectors permission Response Feedback: MFGC 5.1.3 (a) - ANSIf you got a letter from the gas supplier and fire department Can you connect a natural draft and fan assisted fan vent to a type B gas vent chimney? Selected Answer: Incorrect [None Given] Answers: a. Not according to code b. No, natural and fan- assisted vents may not be combined c. Yes, with inspectors permission d. Yes, if it conforms to chapter 13 Response Feedback: NFPA 54 12.7.3.1 (2) - ANSConforms to chapter 13 Combination Waste and Vent may only be used when? Selected Answer: Incorrect [None Given] Answers: a. whenever you wish b. it is ok'd by the inspector c. it is not convenient to install a vent d. special permission from the board - ANSSpecial permission from the board Commercial Food-waste Grinders Required. All establishments summarized in 248 CMR 10.09(2)(a), (restaurants, cafeterias, hotels...) that are served by a municipal sanitary sewer and can seat ____ patrons or more shall incorporate food waste grinders. Selected Answer: Incorrect [None Given] Answers: a. 15 b. 20 c. 30 d. 12 Response Feedback: Pg 150 10.10:(8)(d) - ANS20 Copper and brass tubing shall not be used if the gas contains more than an average of___________ of hydrogen sulfide. Selected Answer: Incorrect [None Given] Answers: a. 0.6 grades b. 0.5 grains c. 0.3 grains d. 0.8 grains - ANS0.3 Crown Venting is where the vent is within ______ of the trap weir. Selected Answer: Incorrect [None Given] Answers: a. 4 diameters b. 2 diameters c. 1 1/2 diameters d. 3 diameters - ANS2 diameters CSST tubing shall not be connected to a _____________. Selected Answer: Incorrect [None Given] Answers: a. outside the gas meter b. fixed appliance c. fireplace b. 1/8 per 12 feet c. 3/8 inch per 20 feet d. 1/2 per 10 feet Response Feedback: NFPA 54 7.2.3 - ANS1/4 per 15' Gas piping may be run into a building through a _________________. Selected Answer: Incorrect [None Given] Answers: a. elevator shaft b. combustion air duct c. laundry chute d. circulating air duct - ANSCombustion air duct Gas piping systems in general shall be considered low pressure when not in excess of ______________. Selected Answer: Incorrect [None Given] Answers: a. 1/2 PSI b. 1 PSI c. 5 PSI d. 2 PSI - ANS1/2 psi Gas piping that will pass through a foundation wall shall _____________. Selected Answer: Incorrect [None Given] Answers: a. be taped or wrapped b. be color coated orange c. have a minimum of 1 inch clearance d. be encased in a protective sleeve Response Feedback: NFPA 54 7.1.5 - ANSBe encased in protective sleeve Gas utilization equipment installed in a residential garage shall be installed so that the burners are not less than ____________ above the floor. Selected Answer: Incorrect [None Given] Answers: a. 18 inches b. 16 inches c. 12 inches d. 24 inches - ANS18" Gas utilization equipment shall not be connected to a chimney flue serving a separate appliance designed to burn ____________. Selected Answer: Incorrect [None Given] Answers: a. liquid fuel b. solid fuel c. LP fuels d. fan assisted gases Response Feedback: NFPA 54 12.6.5.2 - ANSSolid fuel Hot Water Requirement for hospital laundry facilities. Selected Answer: Incorrect [None Given] Answers: a. 125∞ F b. 140∞ F c. 110∞ F d. 180∞ F - ANS180 Hot Water Requirement for hospitals Where the building is higher than__________, each riser shall be circulated. Selected Answer: Incorrect [None Given] Answers: a. 20 Feet b. 5 Stories c. 40 Feet d. 3 Stories - ANS3 Stories If a double acting barometric draft regulator is used, it shall be equipped with a device, which will automatically shut off the fuel to the burner in the event gas spillage exceeds ___________. Selected Answer: Incorrect [None Given] Answers: a. 2 minutes b. 40 seconds c. 60 seconds d. 3 minutes Response Feedback: 7.02 (4) (C) 2 - ANS60 secs If a gas appliance is turned on without notifying the inspector. Selected Answer: Incorrect [None Given] Answers: a. you shall loose your license b. your permit will be canceled c. you must take out a new permit d. you could be refused future permits - ANSYou could be refused future permits If natural gas piping and LP gas piping are installed within the same building the LP pipe shall be _______________. Selected Answer: Incorrect [None Given] Answers: a. red b. green c. yellow d. blue - ANSGreen If the combustion air is being supplied directly from outside, from openings on vertical duct the size of the openings would be 1sq.in_ for every ______ BTUs. Selected Answer: Incorrect [None Given] Answers: a. 1,000 b. 2,000 c. 4,000 d. 5,000 Response Feedback: NFPA 54 9.3.3.1 (1) - ANS4,000 If the fuel gas code changes what effect would it have on existing gas piping? Selected Answer: Incorrect [None Given] Answers: a. all gas piping previously installed shall comply to the new code b. if it is installed prior to the code changes it is not effected c. the existing piping will not be effected unless it is deemed a safety hazard d. if you take out a new gas permit you shall bring the entire job up to code. Response Feedback: MFGC 8.1.5.3 - ANSthe existing piping will not be effected unless it is deemed a safety hazard In order to install a consumer owned gas pressure booster you shall ______________. Selected Answer: Incorrect [None Given] Answers: a. follow the manufactures recommendation b. get permission from the gas company c. not according to code under any conditions d. obtain inspector permission Response Feedback: MFGC 5.5.1.1 - ANSGet permission from the gas company d. two and three - ANS2 and 2 Soil can be extremely heavy. In fact a cubic yard of soil can weigh as much as ____ pounds. Selected Answer: Incorrect [None Given] Answers: a. 2400 b. 4500 c. 2000 d. 3000 - ANS3,000 Storage of drainage in a sump or ejector does not exceed ___ hours Selected Answer: Incorrect [None Given] Answers: a. 8 b. 12 c. 10 d. 24 Response Feedback: Pg 193 10.15:(b)(2) - ANS12hrs Sumps or ejectors, in other than one or two family houses or residences, receiving the discharge of ___ or more toilets shall be provided with duplex pumping equipment. Selected Answer: Incorrect [None Given] Answers: a. 4 b. 6 c. 5 d. 2 Response Feedback: Pg 193 10.15:(10)(c) - ANS6 Tape markings for underground CSST shall be not more than ______ below the grade line. Selected Answer: Incorrect [None Given] Answers: a. 12 inches b. 6 inches c. 18 inches d. 24 inches - ANS6" The drainage system of open parking garages which are subject to freezing temperatures including open parking garages in which floor drains are installed, ___________ the use of traps. Selected Answer: Incorrect [None Given] Answers: a. shall include b. must exclude c. prohibit d. may exclude Response Feedback: Pg 192 10.15:(8)(e) - ANSMay exclude The flow of water or other liquids, mixtures, or substances into the distributing pipes of a potable supply of water from any source or sources other than its intended source. Back-siphonage and Back Pressure. Selected Answer: Incorrect [None Given] Answers: a. Backflow b. Reverse Osmosis c. Barometric Loop d. Over Pressurization - ANSBackflow The flowing back of used, contaminated, or polluted water from a plumbing fixture, vessel or other sources into a water supply pipe due to a negative pressure in such pipe. Selected Answer: Incorrect [None Given] Answers: a. Back Flow b. Watts 9D c. Back-Siphonage d. Back Water - ANSBack - siphonage The free area of metal louvers and grills is __________ free area. Selected Answer: Incorrect [None Given] Answers: a. 60% b. 25% c. 75% d. 80% - ANS75% The free area of wooden louvers is ___________ free area. Selected Answer: Incorrect [None Given] Answers: a. 40% b. 50% c. 25% d. 30% - ANS25% The MA Fuel Gas & Plumbing Code is ______________. Selected Answer: Incorrect [None Given] Answers: a. Chapter 142 MGL b. Sec 3 Chapter 142 c. 248 CMR d. 151 CMR MGL - ANS248 CMR The maximum length for supports for CSST tubing connected to a fixed gas appliances ___________ Selected Answer: Incorrect [None Given] Answers: a. 30 inches b. 36 inches c. 24 inches d. 40 inches - ANS30" The minimum cover for underground gas piping in a high traffic area is ___________. Selected Answer: Incorrect [None Given] Answers: a. 30 inches b. 24 inches c. 12 inches d. 18 inches Response Feedback: NFPA 54 7.1.2.1 (A) - ANS18" The minimum dimension for a combustion and ventilating air opening is ______________. Selected Answer: Incorrect [None Given] Answers: a. 6 inches b. 4 inches c. 5 inches iii. A full port discharge valve and check valve shall be provided and made accessible inside the building. iv. The waste discharge from semi-positive displacement grinder pumps shall be protected from freezing when the piping is installe - ANS7 Toilet facilities accessible to the public which have two or more toilets or urinals, or two or more thereof in any combination, shall provide a ___________ with a __________ Selected Answer: Incorrect [None Given] Answers: a. Floor Drain & Trap Primer b. Partition & Lock c. Hose Bib & Vacuum Breaker d. Paper Towel Dispenser & Cover e. Both A & B f. Both A & C g. Both A & D h. Both B & D - ANSA/C Tubing traps made of brass or copper shall be of a thickness equal to a minimum ______ gauge. Selected Answer: Incorrect [None Given] Answers: a. 18 b. 17 c. 16 d. 24 Response Feedback: Pg 140 10.08:(1)(e)4 - ANS17 Water Service Piping Outside of a building shall be___________ Selected Answer: Incorrect [None Given] Answers: a. Material Specified by the local Municipality b. Pex Tubing c. Type K or L copper Tubing d. Ductile Iron Water Pipe Response Feedback: Pg 125 10:06.2.k - ANSLocal municipality Welded gas pipe over 70 PSI shall _____________. Selected Answer: Incorrect [None Given] Answers: a. require board approval b. be tested to 200 psi c. require an x-ray of all welds d. required visual inspection of all welds Response Feedback: MFGC 5.6.2.2.1 (c) a - ANSXray of all welds Welded gas piping with an operating pressure greater than 10 psi and less than 70 PSI shall be tested to_____________. Selected Answer: Incorrect [None Given] Answers: a. 125 PSI b. 70 PSI c. 85 PSI d. 100 PSI Response Feedback: MFGC 5.6.2.2.1 (B) - ANS100 What is the horizontal hanger spacing for 1/2 inch OD gas tubing ________? Selected Answer: Incorrect [None Given] Answers: a. 3 feet b. 5 feet c. 6 feet d. 4 feet - ANS4' What is the maximum allowable gas pressure in a building without approval? Selected Answer: Incorrect [None Given] Answers: a. 1/2 PSI b. 2 PSI c. 5 PSI d. 1 PSI Response Feedback: MFGC 4.03 (1) (b) - ANS1/2 PSI What is the minimum distance a gas vent chimney shall extend above the point where it passes through the roof? Selected Answer: Incorrect [None Given] Answers: a. 4 feet b. 3 feet c. 18 inches d. 2 feet Response Feedback: NFPA 54 12.6.2.1 - ANS3' What is the minimum test pressure on a 0.5 PSI gas system _______________ ? Selected Answer: Incorrect [None Given] Answers: a. 5 PSI b. 3 PSI c. 6 PSI d. 1 1/2PSI - ANS3 psi What is the minimum, amount of covering for underground gas piping in a non-traffic area? Selected Answer: Incorrect [None Given] Answers: a. 16 inches b. 18 inches c. 12 inches d. 24 inches - ANS12" What is used to maintain constant gas pressure to an appliance when there is a fluctuation in gas pressure? Selected Answer: Incorrect [None Given] Answers: a. zero governor b. pressure regulator c. pressure reducing valve d. pressure equalizer Response Feedback: NFPA 54 3.3.88.5 - ANSPressure regulator When a 4-inch oil vent and a 7-inch gas vent are connected to a masonry chimney which vent enters at the highest level? Selected Answer: Incorrect [None Given] Answers: a. the smaller vent is always higher b. it depends on the size of the pipe c. the gas is at the highest level d. oil is always at the lower level Response Feedback: NFPA 54 12.11.4.2 - ANSThe smaller vent is awlways way higher When a vent could be subjected to "frost over" what actions must be taken? When installing a vent that is going to go through an occupied portion of the roof, what must be done to the pipe before it penetrates the roof? Selected Answer: Incorrect [None Given] Answers: a. Must be Cast Iron b. Must increase in size 2' below the roof line c. Must increase 2 pipe diameters 1' below the roof d. Must increase 1 pipe diameter 1' below the roof. - ANSMust increase 1 pipe diameter 1' below When installing a water meter, the valve on the discharge side of the meter shall meet the following requirements: Mechanical, Full Size and _________. Selected Answer: Incorrect [None Given] Answers: a. Solenoid Action b. Ball Valve c. Full Port d. Have a Drain - ANSFull port When it is called for a hot water line to be re-circulated, a __________ may be used in lieu of installing a full re-circulating line Selected Answer: Incorrect [None Given] Answers: a. Indirect Heater b. Heat Tracing c. Self Regulating Heat Cable d. Tankless Heater Response Feedback: Pg 174 10.14:(4)(h) - ANSSelf regulating heat cable When sizing a ejector pump for toilets and other fixtures, if the total number of fixtures exceeds ____ times the amount of water closets, you should increase the pump size. Selected Answer: Incorrect [None Given] Answers: a. 5 b. 3 c. 4 d. 10 - ANS4 When there is excessive water pressure coming into a building the installation of a _________ is required. Selected Answer: Incorrect [None Given] Answers: a. PVB b. RPZ c. PRV d. Double Check Response Feedback: Pressure Reducing Valve Pg 174 10.14:(4)(h) - ANSPRV When tracer wire is required for underground gas piping shall be a minimum of__________ gauge. Selected Answer: Incorrect [None Given] Answers: a. 18 b. 12 c. 14 d. 16 Response Feedback: NFPA 54 7.1.7.3 - ANS14 When using CPVC for hot and cold water distribution that is located in an approved dwelling, the building cannot be more than ______ stories or _______ feet in height Selected Answer: Incorrect [None Given] Answers: a. 5 & 50 b. 6 & 60 c. 10 & 100 d. 3 & 30 Response Feedback: Pg 126 10:06.2.m.5 - ANS6 and 60 When using CPVC in a residential setting, this material cannot be within ______ of any connection to a hot water tank. Selected Answer: Incorrect [None Given] Answers: a. 2' b. 28" c. 20" d. 2'4" Response Feedback: Pg 126 10:06.2.m.5 - ANS2' When using smoke to test the DWV system, it may only be performed on existing, occupied buildings. Selected Answer: Incorrect[None Given] Answers: True False Response Feedback: There are no limitations stated in 248 CMR. - ANSFalse Where can CPVC be used in a commercial building? Selected Answer: Incorrect [None Given] Answers: a. Nowhere - can only be used in Residential areas b. Dedicated only for drinking fountains in a state licensed or accredited school. c. Only in the shower rooms in a state licensed or accredited school. d. Only in a school cafeteria in a state licensed or accredited school. Response Feedback: Pg 126 10:06.2.m.5 for the exclusive cold water supply distribution beginning at the outlet of the water meter (or the control valve inside a building) directly dedicated to a drinking water fountain(s) in state licensed or accredited school buildings only. - ANSOnly for drinking fountains in a school state licensed or accredditted school Which of the following gas jobs would require a gas permit? Selected Answer: Incorrect [None Given] Answers: a. servicing a gas appliance b. replacing a gas control c. adjusting a service regulator d. moving a gas appliance Response Feedback: MFGC 3.05 8 (c) - ANSMoving gas appliance Which of the following gas venting systems would not be used for a category 1 appliance. Selected Answer: Incorrect [None Given] Answers: a. single wall vent b. masonry chimney