TRADESMAN EXAM LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
Where static water pressure in the water supply piping is exceeding
_______, an approved type pressure regulator preceded by an
adequate strainer shall be installed.
80 psi
The discharge piping serving a temperature and pressure relief
valve must discharge through an air gap into the drainage system or
outside of the building with end of the pipe ______________ above
the ground and facing downward.
not exceeding 2 feet and not less than 6 inch
Water pipes shall not be run or laid in the same trench as drainage
piping made of materials not approved for use within a building
unless:
A and B
No building supply pipe shall be:
less than 3/4"
Caulked joints shall be firmly packed with oakum or hemp and
filled with molten lead to a depth of:
not less than 1 inch
Horizontal drainage lines connecting with other drainage lines shall
enter through:
END OF
PAGE
1
, TRADESMAN EXAM LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
all of the above
No under-floor clean out shall be located:
exceeding 5 feet from an access door, trap door, or crawl hole.
Each cleanout 2 inches or less in size must have a clearance of:
not less than 18 inches in front of the cleanout.
Cleanout exceeding 2 inches must have a clearance of:
not less than 24 inches in front of the cleanout.
Horizontal drainage piping shall have a uniform slope of:
not less than 1/4" per foot
Where it is impractical to obtain a slope of 1/4" per foot, piping 4"
or larger may have a slope of:
not less than 1/8" per foot
Where the drainage and vent system is tested in its entirety,
openings in the piping shall be tightly closed , except the highest
opening, and the system filled with water:
to the point of overflow
Where the drainage system is tested in sections, each section shall be
filled with water but no section shall be tested:
END OF
PAGE
2
QUESTIONS AND
ANSWERS 2026 - 2027
Where static water pressure in the water supply piping is exceeding
_______, an approved type pressure regulator preceded by an
adequate strainer shall be installed.
80 psi
The discharge piping serving a temperature and pressure relief
valve must discharge through an air gap into the drainage system or
outside of the building with end of the pipe ______________ above
the ground and facing downward.
not exceeding 2 feet and not less than 6 inch
Water pipes shall not be run or laid in the same trench as drainage
piping made of materials not approved for use within a building
unless:
A and B
No building supply pipe shall be:
less than 3/4"
Caulked joints shall be firmly packed with oakum or hemp and
filled with molten lead to a depth of:
not less than 1 inch
Horizontal drainage lines connecting with other drainage lines shall
enter through:
END OF
PAGE
1
, TRADESMAN EXAM LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
all of the above
No under-floor clean out shall be located:
exceeding 5 feet from an access door, trap door, or crawl hole.
Each cleanout 2 inches or less in size must have a clearance of:
not less than 18 inches in front of the cleanout.
Cleanout exceeding 2 inches must have a clearance of:
not less than 24 inches in front of the cleanout.
Horizontal drainage piping shall have a uniform slope of:
not less than 1/4" per foot
Where it is impractical to obtain a slope of 1/4" per foot, piping 4"
or larger may have a slope of:
not less than 1/8" per foot
Where the drainage and vent system is tested in its entirety,
openings in the piping shall be tightly closed , except the highest
opening, and the system filled with water:
to the point of overflow
Where the drainage system is tested in sections, each section shall be
filled with water but no section shall be tested:
END OF
PAGE
2
