MASS PLUMBING CODE QUESTIONS AND ANSWERS
How many foot of head do you need for a test on the sanitary drainage system -
Answers- 10'
The min spacing for hangers on horizontal 1" copper - Answers- 6'
No vent shall be installed within _______ of the trap weir - Answers- 2 pipe diameters
When sheet copper is used in plumbing it shall have a min thickness of - Answers- 12
oz per sq ft
The storage time of a sump shall not exceed - Answers- 12 hours
Min drain size on residential laundry - Answers- 1 1/2
Duplex pumps are required on more than ______ water closets - Answers- 5
The min spacing for hangers on horizontal pex is - Answers- 32"
Max distance of 2" trap from vent - Answers- 6'
Max distance from trap to vent 1 1/2 - Answers- 5'
A waste pipe that discharges through and air gap into a properly trapped and vented
fixture is called - Answers- Inderect waste pipe
Min spacing on horizontal 2" copper is - Answers- 10'
Max flow from a shower head - Answers- 2.5 gpm
Min trap seal - Answers- 2"
Trap size of a tub with overhead shower - Answers- 1 1/2
The min clearance for access to a 3" or larger clean out is - Answers- 18"
How many fixture units can a 2" trap hold - Answers- 3
1 1/2 pipe is how many fixture units - Answers- 2
Clean out plugs can be made of - Answers- Brass or plastic
Copper tubing with smallest inside diameter - Answers- Type k
Max drainage fixture units on a 3" soil stack - Answers- 48
, A flexible connector for gas appliances cannot be used for pressure exceeding -
Answers- .5 psi
The vertical distance between a fixture outlet and trap weir shall not exceed - Answers-
24"
Test done with air on sanitary drainage system shall be how many psi - Answers- 5
The min clearance on clean outs 2" or smaller is - Answers- 12"
The min size floor drain is - Answers- 2"
When battery venting laboratory sinks, each relief vent may serve from one to
________ vents - Answers- Five
The min height of a vacuum brackets above he flood lever rim of a fixture - Answers- 6"
The max distance between clean outs on 4" or smaller is - Answers- 50'
Relief vents are required on sanitary stacks of more than how many floors - Answers-
10
stainless steel tubing grade H or SL shall be marked what color - Answers- Blue
Inspection of neutralizing sumo shall be done - Answers- Monthly
Min size drain for residential Food waste grinder is - Answers- 1 1/2
When building drainage is installed in the same trench as the water service what joints
are allowed for the drainage system - Answers- Lead and oakrum
All pvc pipe passing through concrete walls and floors shall have a sleeve having an
annular spade of - Answers- 1"
The min height for a standpipe for a laundry - Answers- 30"
The max distance to run a hot eater line be for a recirculation line is needed - Answers-
100'
A inspector shall make an inspection within how many working days after being notified
- Answers- 2 working days
When battery venting laboratory sinks the min size relief vent is - Answers- 2"
The color marking for potable water is - Answers- Green
How many foot of head do you need for a test on the sanitary drainage system -
Answers- 10'
The min spacing for hangers on horizontal 1" copper - Answers- 6'
No vent shall be installed within _______ of the trap weir - Answers- 2 pipe diameters
When sheet copper is used in plumbing it shall have a min thickness of - Answers- 12
oz per sq ft
The storage time of a sump shall not exceed - Answers- 12 hours
Min drain size on residential laundry - Answers- 1 1/2
Duplex pumps are required on more than ______ water closets - Answers- 5
The min spacing for hangers on horizontal pex is - Answers- 32"
Max distance of 2" trap from vent - Answers- 6'
Max distance from trap to vent 1 1/2 - Answers- 5'
A waste pipe that discharges through and air gap into a properly trapped and vented
fixture is called - Answers- Inderect waste pipe
Min spacing on horizontal 2" copper is - Answers- 10'
Max flow from a shower head - Answers- 2.5 gpm
Min trap seal - Answers- 2"
Trap size of a tub with overhead shower - Answers- 1 1/2
The min clearance for access to a 3" or larger clean out is - Answers- 18"
How many fixture units can a 2" trap hold - Answers- 3
1 1/2 pipe is how many fixture units - Answers- 2
Clean out plugs can be made of - Answers- Brass or plastic
Copper tubing with smallest inside diameter - Answers- Type k
Max drainage fixture units on a 3" soil stack - Answers- 48
, A flexible connector for gas appliances cannot be used for pressure exceeding -
Answers- .5 psi
The vertical distance between a fixture outlet and trap weir shall not exceed - Answers-
24"
Test done with air on sanitary drainage system shall be how many psi - Answers- 5
The min clearance on clean outs 2" or smaller is - Answers- 12"
The min size floor drain is - Answers- 2"
When battery venting laboratory sinks, each relief vent may serve from one to
________ vents - Answers- Five
The min height of a vacuum brackets above he flood lever rim of a fixture - Answers- 6"
The max distance between clean outs on 4" or smaller is - Answers- 50'
Relief vents are required on sanitary stacks of more than how many floors - Answers-
10
stainless steel tubing grade H or SL shall be marked what color - Answers- Blue
Inspection of neutralizing sumo shall be done - Answers- Monthly
Min size drain for residential Food waste grinder is - Answers- 1 1/2
When building drainage is installed in the same trench as the water service what joints
are allowed for the drainage system - Answers- Lead and oakrum
All pvc pipe passing through concrete walls and floors shall have a sleeve having an
annular spade of - Answers- 1"
The min height for a standpipe for a laundry - Answers- 30"
The max distance to run a hot eater line be for a recirculation line is needed - Answers-
100'
A inspector shall make an inspection within how many working days after being notified
- Answers- 2 working days
When battery venting laboratory sinks the min size relief vent is - Answers- 2"
The color marking for potable water is - Answers- Green
