Master Massachusetts plumbing
questions and answers 100% correct
4 pounds - correct answers Sheet lead for safe pan
3 pounds - correct answers Lead roof flange
1/8" thick - correct answers Brass toilet flange
1/4 " thick - correct answers Cast iron flange
Are cast iron cleanout plugs allowed - correct answers No
Rodding cleanout distance on 3" and bigger - correct answers Clearance is
18"
Rodding cleanout distance on 2" or less - correct answers Clearance is 12"
CPVC or Pex piping allowed for Hot Water Heaters or Boiler - correct answers
No closer than 24"
0% lead - correct answers Lead free solder should contain 0%
3% lead fixture - correct answers Max lead in a faucet fixture
Why use rector seal - correct answers Lubricates and creates water tight seal
, Transition from abs - correct answers PVC to ABS connections to be made
via male to female adapter
24" - correct answers Fixture outlet to trap weir not to exceed 24"
Combination Fixtures - correct answers Max 30" apart and no more than 6in
deeper than another
Prohibited traps - correct answers Bell, crown vented, full "s" traps- *Drum
Traps are allowed!
Min trap seal - correct answers Min trap seal is 2-4 "
Deadend Pipe - correct answers 2' or greater
10" underground pipe or larger - correct answers Manhole @ change of size,
alignment, grade or elevation
Grease trap - correct answers 2 pounds per gpm
Commercial Laundry - correct answers Commercial Laundry drain must
handle 75% of total washing machines
Shower Stall - correct answers 900 Sq in or 30 measured as the side of a
rectangle (interior dimensions).
questions and answers 100% correct
4 pounds - correct answers Sheet lead for safe pan
3 pounds - correct answers Lead roof flange
1/8" thick - correct answers Brass toilet flange
1/4 " thick - correct answers Cast iron flange
Are cast iron cleanout plugs allowed - correct answers No
Rodding cleanout distance on 3" and bigger - correct answers Clearance is
18"
Rodding cleanout distance on 2" or less - correct answers Clearance is 12"
CPVC or Pex piping allowed for Hot Water Heaters or Boiler - correct answers
No closer than 24"
0% lead - correct answers Lead free solder should contain 0%
3% lead fixture - correct answers Max lead in a faucet fixture
Why use rector seal - correct answers Lubricates and creates water tight seal
, Transition from abs - correct answers PVC to ABS connections to be made
via male to female adapter
24" - correct answers Fixture outlet to trap weir not to exceed 24"
Combination Fixtures - correct answers Max 30" apart and no more than 6in
deeper than another
Prohibited traps - correct answers Bell, crown vented, full "s" traps- *Drum
Traps are allowed!
Min trap seal - correct answers Min trap seal is 2-4 "
Deadend Pipe - correct answers 2' or greater
10" underground pipe or larger - correct answers Manhole @ change of size,
alignment, grade or elevation
Grease trap - correct answers 2 pounds per gpm
Commercial Laundry - correct answers Commercial Laundry drain must
handle 75% of total washing machines
Shower Stall - correct answers 900 Sq in or 30 measured as the side of a
rectangle (interior dimensions).
