1|Page
MASSACHUSETTS PLUMBING CODE EXAM 2025|
BRAND NEW ACTUAL EXAM WITH 100% VERIFIED
QUESTIONS AND CORRECT SOLUTIONS|
GUARANTEED VALUE PACK| ACE YOUR GRADES.
How far can a trap arm go 1 1/2" 2" 3" 4" - (answers)5' 6' 8' 10'
What is the maximum water pressure going into a residential dwelling -
(answers)80 psi
What is the smallest drain piping allowed underground - (answers)2"
What's the minimal size vent going through a roof - (answers)2"
How many pounds in a gallon of water - (answers)8.33 lbs
How many gallons in a cubic foot of water - (answers)7.5
How much does a square foot of water weigh - (answers)62.5 lbs
What is the minimal size piping for drainage going through a foundation wall -
(answers)4"
What is the minimal size water main underground - (answers)3/4"
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How far should a dwv vent go through the roof - (answers)18-24"
What is the max temp for a shower head - (answers)112 degrees
What is the maximum distance for a common vent at different levels -
(answers)10"
What is the minimal liquid trap seal - (answers)2"
What must be stamped on the lip of every S.U. Gasket - (answers)ASTM, SV or XH
neoprene, manufactures name
How do you calculate the size of an air gap - (answers)It must be at least twice the
size of the diameter of the drain it serves
(into a receptor, sink, floor drain, or inlet side of a trap)
What is the minimal pounds of grease per gallon of flow - (answers)2 pounds
Minimal size water heater that requires a safe pan - (answers)6 gallons
what is the multiplier for a 45 degree offset - (answers)Rise x 1.414 = offset
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Area of a triangle formula - (answers)A=1/2bh (bxh divide by 2)
What temperature does water boil at - (answers)212 degrees Fahrenheit
What temperature does water freeze at - (answers)32 degrees Fahrenheit
Volume of a rectangle - (answers)L x W x H
Volume of a triangular solid - (answers)Bxh divided by 2 x L
How many gallons in a fixture unit - (answers)7.5
How many cubic Inches in a gallon - (answers)231"
Psi (gauge pressure) at the base of a column of water - (answers).434 x height in
feet
At what temp is water most dense - (answers)39.2 degrees
Volume of a cylinder - (answers)V=πr²h ( pi X r squared X height
MASSACHUSETTS PLUMBING CODE EXAM 2025|
BRAND NEW ACTUAL EXAM WITH 100% VERIFIED
QUESTIONS AND CORRECT SOLUTIONS|
GUARANTEED VALUE PACK| ACE YOUR GRADES.
How far can a trap arm go 1 1/2" 2" 3" 4" - (answers)5' 6' 8' 10'
What is the maximum water pressure going into a residential dwelling -
(answers)80 psi
What is the smallest drain piping allowed underground - (answers)2"
What's the minimal size vent going through a roof - (answers)2"
How many pounds in a gallon of water - (answers)8.33 lbs
How many gallons in a cubic foot of water - (answers)7.5
How much does a square foot of water weigh - (answers)62.5 lbs
What is the minimal size piping for drainage going through a foundation wall -
(answers)4"
What is the minimal size water main underground - (answers)3/4"
,2|Page
How far should a dwv vent go through the roof - (answers)18-24"
What is the max temp for a shower head - (answers)112 degrees
What is the maximum distance for a common vent at different levels -
(answers)10"
What is the minimal liquid trap seal - (answers)2"
What must be stamped on the lip of every S.U. Gasket - (answers)ASTM, SV or XH
neoprene, manufactures name
How do you calculate the size of an air gap - (answers)It must be at least twice the
size of the diameter of the drain it serves
(into a receptor, sink, floor drain, or inlet side of a trap)
What is the minimal pounds of grease per gallon of flow - (answers)2 pounds
Minimal size water heater that requires a safe pan - (answers)6 gallons
what is the multiplier for a 45 degree offset - (answers)Rise x 1.414 = offset
, 3|Page
Area of a triangle formula - (answers)A=1/2bh (bxh divide by 2)
What temperature does water boil at - (answers)212 degrees Fahrenheit
What temperature does water freeze at - (answers)32 degrees Fahrenheit
Volume of a rectangle - (answers)L x W x H
Volume of a triangular solid - (answers)Bxh divided by 2 x L
How many gallons in a fixture unit - (answers)7.5
How many cubic Inches in a gallon - (answers)231"
Psi (gauge pressure) at the base of a column of water - (answers).434 x height in
feet
At what temp is water most dense - (answers)39.2 degrees
Volume of a cylinder - (answers)V=πr²h ( pi X r squared X height
