MECHANICAL LAW – MICHIGAN
PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED
A+
◍ The Skilled Trades Regulation Act is also as:
A. Act 192 of 1984
B. Act 230 of 1972
C. PA 407 of 2016
D. Mechanical Law Act.
Answer: C. PA 407 of 2016 339.5101
◍ Welded.
Answer: A mechanical joint is not ________ .
◍ make up air.
Answer: Any combination of outdoor and transfer air intended to replace
exhaust air and exfiltration is ___________.
◍ duct.
Answer: A tube or conduit utilized for conveying air is a ___________ .
◍ Act 407 of 2016 does not require a contractor of record in a facility that
regularly employs a qualified maintenance crew __________________
A. for an association
B. for a partnership
C. for a college
D. to perform work in that facility.
Answer: D. to perform work in that facility339.5809 item 5
◍ press joint.
, Answer: A permanent mechanical joint incorporating an elastomeric seal
and corrosion resistant grip ring is a __________ .
◍ third party certified.
Answer: Plastic pipe, fittings and components shall be ___________ as
conforming to NSF 14.
◍ replaced.
Answer: Defective material or parts shall be ___________ or repaired in
such a manner to preserve its original listing.
◍ Who can hold a mechanical license?
A. School
B. Colleges
C. Only an individual person
D. A corporation.
Answer: C. Only an individual person339.5807 item 4
◍ To apply for the Mechanical Exam, a person must have:
A. 1 years' experience
B. 2 years' experience
C. 3 years' experience
D. 4 years' experience.
Answer: C. 3 years' experience339.5807 item 1
◍ 25.
Answer: In bearing partitions, wood studs shall not be cut or notched to a
depth exceeding __________ % of its depth.
◍ 18, listed.
Answer: Equipment with an ignition source shall be elevated such that the
ignition source is not less than __________ inches above the garage floor
unless the appliance is _________ as flammable vapor ignition resistant.
◍ 22.
Answer: Attics containing appliances shall be provided with an opening and
unobstructed passageway not less than _________ inches wide.
, ◍ 16, 30.
Answer: Equipment on elevated structures or roofs above __________ feet
requiring access must be provided with an interior or exterior access that
does not require climbing over obstructions ________ inches high.
◍ Who may obtain a mechanical permit and legally do mechanical work
without a license besides a Licensed Mechanical Contractor?
A. Maintenance personnel
B. Anyone who holds a business license
C. A relative of the Licensed Mechanical Contractor
D. A homeowner.
Answer: D. A homeowner 339.5819
◍ PA 230 of 1972 is also know as:
A. Construction Code Act
B. Lien Recover Fund
C. Asbestos Abatement Contractors Licensing Act
D. Senate Bill No. 406.
Answer: A. Construction Code Act125.1501 sect 1
◍ The following are exempt from the Mechanical Contractor Act:
A. Schools
B. Colleges
C. There are no exemptions
D. Work done by homeowners.
Answer: C. There are no exemptions339.5809
◍ R-3 occupancies.
Answer: Providing permanent access to equipment on a roof does not apply
to ____________ .
◍ The Skilled Trades Regulation Act took effect _________ and was signed
by ____________.
A. Jan 1, 1972; The President
B. Jan 1, 1972; The Governor
PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED
A+
◍ The Skilled Trades Regulation Act is also as:
A. Act 192 of 1984
B. Act 230 of 1972
C. PA 407 of 2016
D. Mechanical Law Act.
Answer: C. PA 407 of 2016 339.5101
◍ Welded.
Answer: A mechanical joint is not ________ .
◍ make up air.
Answer: Any combination of outdoor and transfer air intended to replace
exhaust air and exfiltration is ___________.
◍ duct.
Answer: A tube or conduit utilized for conveying air is a ___________ .
◍ Act 407 of 2016 does not require a contractor of record in a facility that
regularly employs a qualified maintenance crew __________________
A. for an association
B. for a partnership
C. for a college
D. to perform work in that facility.
Answer: D. to perform work in that facility339.5809 item 5
◍ press joint.
, Answer: A permanent mechanical joint incorporating an elastomeric seal
and corrosion resistant grip ring is a __________ .
◍ third party certified.
Answer: Plastic pipe, fittings and components shall be ___________ as
conforming to NSF 14.
◍ replaced.
Answer: Defective material or parts shall be ___________ or repaired in
such a manner to preserve its original listing.
◍ Who can hold a mechanical license?
A. School
B. Colleges
C. Only an individual person
D. A corporation.
Answer: C. Only an individual person339.5807 item 4
◍ To apply for the Mechanical Exam, a person must have:
A. 1 years' experience
B. 2 years' experience
C. 3 years' experience
D. 4 years' experience.
Answer: C. 3 years' experience339.5807 item 1
◍ 25.
Answer: In bearing partitions, wood studs shall not be cut or notched to a
depth exceeding __________ % of its depth.
◍ 18, listed.
Answer: Equipment with an ignition source shall be elevated such that the
ignition source is not less than __________ inches above the garage floor
unless the appliance is _________ as flammable vapor ignition resistant.
◍ 22.
Answer: Attics containing appliances shall be provided with an opening and
unobstructed passageway not less than _________ inches wide.
, ◍ 16, 30.
Answer: Equipment on elevated structures or roofs above __________ feet
requiring access must be provided with an interior or exterior access that
does not require climbing over obstructions ________ inches high.
◍ Who may obtain a mechanical permit and legally do mechanical work
without a license besides a Licensed Mechanical Contractor?
A. Maintenance personnel
B. Anyone who holds a business license
C. A relative of the Licensed Mechanical Contractor
D. A homeowner.
Answer: D. A homeowner 339.5819
◍ PA 230 of 1972 is also know as:
A. Construction Code Act
B. Lien Recover Fund
C. Asbestos Abatement Contractors Licensing Act
D. Senate Bill No. 406.
Answer: A. Construction Code Act125.1501 sect 1
◍ The following are exempt from the Mechanical Contractor Act:
A. Schools
B. Colleges
C. There are no exemptions
D. Work done by homeowners.
Answer: C. There are no exemptions339.5809
◍ R-3 occupancies.
Answer: Providing permanent access to equipment on a roof does not apply
to ____________ .
◍ The Skilled Trades Regulation Act took effect _________ and was signed
by ____________.
A. Jan 1, 1972; The President
B. Jan 1, 1972; The Governor
