Mass Plumbing Code | Questions with 100% Verified Answers | Latest Update 2026/2027

Mass Plumbing Code | Questions with 100% Verified Answers |
Latest Update 2026/2027
Question: How many foot of head do you need for a test on the sanitary drainage system
Answer: 10'

Question: The min spacing for hangers on horizontal 1" copper
Answer: 6'

Question: No vent shall be installed within _______ of the trap weir
Answer: 2 pipe diameters

Question: When sheet copper is used in plumbing it shall have a min thickness of
Answer: 12 oz per sq ft

Question: The storage time of a sump shall not exceed
Answer: 12 hours

Question: Min drain size on residential laundry
Answer: 1 1/2

Question: Duplex pumps are required on more than ______ water closets
Answer: 5

Question: The min spacing for hangers on horizontal pex is
Answer: 32"

Question: Max distance of 2" trap from vent
Answer: 6'

Question: Max distance from trap to vent 1 1/2
Answer: 5'

Question: When battery venting laboratory sinks, each relief vent may serve from one to ________ vents
Answer: Five

Question: The min height of a vacuum brackets above he flood lever rim of a fixture
Answer: 6"

Question: The max distance between clean outs on 4" or smaller is
Answer: 50'

Question: Relief vents are required on sanitary stacks of more than how many floors
Answer: 10

, Question: stainless steel tubing grade H or SL shall be marked what color
Answer: Blue

Question: Inspection of neutralizing sumo shall be done
Answer: Monthly

Question: Min size drain for residential Food waste grinder is
Answer: 1 1/2

Question: A waste pipe that discharges through and air gap into a properly trapped and vented fixture is called
Answer: Inderect waste pipe

Question: Min spacing on horizontal 2" copper is
Answer: 10'

Question: Max flow from a shower head
Answer: 2.5 gpm

Question: Min trap seal
Answer: 2"

Question: Trap size of a tub with overhead shower
Answer: 1 1/2

Question: The min clearance for access to a 3" or larger clean out is
Answer: 18"

Question: How many fixture units can a 2" trap hold
Answer: 3

Question: 1 1/2 pipe is how many fixture units
Answer: 2

Question: Clean out plugs can be made of
Answer: Brass or plastic

Question: Copper tubing with smallest inside diameter
Answer: Type k

Question: Max drainage fixture units on a 3" soil stack
Answer: 48

Question: A flexible connector for gas appliances cannot be used for pressure exceeding
Answer: .5 psi