MASTER PLUMBER CERTIFICATION
STUDY GUIDE 2026 COMPLETE
QUESTIONS AND VERIFIED
ANSWERS
◉ 4' 6" Below Grade. Answer: Water Services Shall Be Installed Not
Less Than:
◉ Insulated/Heated or Both. Answer: Piping installed in exterior walls
or areas subject to freezing must:
◉ 36" Below Grade. Answer: Building Sewers connected to a public
sewer shall have a minimum coverage of:
◉ Under a water heater 6 gallons or greater that is elevated. Answer: A
safe waste pan shall be installed
◉ 2" deep with 2" clearance around heater. Answer: A safe waste pan
shall be at least
◉ 5' undisturbed compacted earth. Answer: Water service piping and
building drain/sewer shall be separated by:
◉ Water line is installed minimum 12" above sewer line at highest
point. Answer: Water service separation distance is not required if:
,◉ 50'. Answer: Distance for a septic tank/sewer to a private water
supply(well) is:
◉ 12"below the roof with an approved fitting. Answer: Where frost
closure is common an increase in vent size shall take place:
◉ "V" zone (subject to wave heights in excess of 3'). Answer: High
Hazard flood zone is:
◉ 8.0% Lead. Answer: Lead free pipe and fittings contain less than:
◉ 110 degrees. Answer: Hot water is water at temperature greater than
or equal to:
◉ 0.2% Lead. Answer: Lead free solder and flux contain no more than
◉ 0.5 inches. Answer: Strainer plates on drain lines for rodent proofing
must have openings:
◉ Two pipe size greater than the pipe passing through it. Answer:
Sleeves for pipes passing through foundation walls or under footings
shall be:
, ◉ 500'. Answer: Travel distance to toilet facilities in
merchantile/occupancies are:
◉ 300'. Answer: Travel distance to toilet facilities in covered malls are:
◉ 15". Answer: Water closets, bidets or lavatories shall have a clearance
from center of fixture to wall of:
◉ 21". Answer: The required clearance from front of fixture to a wall,
door or other fixture is:
◉ 3" for public, 2" for residential. Answer: Minimum size floor drains
for public laundries or central washing facilities is:, and what is the
minimum size floor drain for residential setting
◉ 1 1/2". Answer: Shower waste outlets shall be minimum of:
◉ 3". Answer: Minimum size removable strainer for shower
compartments are:
◉ .25 inches. Answer: Minimum size floor drain strainer opening is:
◉ 4 pounds per square foot. Answer: Sheet lead shall not weigh less
than:
STUDY GUIDE 2026 COMPLETE
QUESTIONS AND VERIFIED
ANSWERS
◉ 4' 6" Below Grade. Answer: Water Services Shall Be Installed Not
Less Than:
◉ Insulated/Heated or Both. Answer: Piping installed in exterior walls
or areas subject to freezing must:
◉ 36" Below Grade. Answer: Building Sewers connected to a public
sewer shall have a minimum coverage of:
◉ Under a water heater 6 gallons or greater that is elevated. Answer: A
safe waste pan shall be installed
◉ 2" deep with 2" clearance around heater. Answer: A safe waste pan
shall be at least
◉ 5' undisturbed compacted earth. Answer: Water service piping and
building drain/sewer shall be separated by:
◉ Water line is installed minimum 12" above sewer line at highest
point. Answer: Water service separation distance is not required if:
,◉ 50'. Answer: Distance for a septic tank/sewer to a private water
supply(well) is:
◉ 12"below the roof with an approved fitting. Answer: Where frost
closure is common an increase in vent size shall take place:
◉ "V" zone (subject to wave heights in excess of 3'). Answer: High
Hazard flood zone is:
◉ 8.0% Lead. Answer: Lead free pipe and fittings contain less than:
◉ 110 degrees. Answer: Hot water is water at temperature greater than
or equal to:
◉ 0.2% Lead. Answer: Lead free solder and flux contain no more than
◉ 0.5 inches. Answer: Strainer plates on drain lines for rodent proofing
must have openings:
◉ Two pipe size greater than the pipe passing through it. Answer:
Sleeves for pipes passing through foundation walls or under footings
shall be:
, ◉ 500'. Answer: Travel distance to toilet facilities in
merchantile/occupancies are:
◉ 300'. Answer: Travel distance to toilet facilities in covered malls are:
◉ 15". Answer: Water closets, bidets or lavatories shall have a clearance
from center of fixture to wall of:
◉ 21". Answer: The required clearance from front of fixture to a wall,
door or other fixture is:
◉ 3" for public, 2" for residential. Answer: Minimum size floor drains
for public laundries or central washing facilities is:, and what is the
minimum size floor drain for residential setting
◉ 1 1/2". Answer: Shower waste outlets shall be minimum of:
◉ 3". Answer: Minimum size removable strainer for shower
compartments are:
◉ .25 inches. Answer: Minimum size floor drain strainer opening is:
◉ 4 pounds per square foot. Answer: Sheet lead shall not weigh less
than:
