2024 Michigan Mechanical Code
Exam Q’s and A’s
Welded - -A mechanical joint is not ________ .
- make up air - -Any combination of outdoor and transfer air intended to
replace exhaust air and exfiltration is ___________.
- duct - -A tube or conduit utilized for conveying air is a ___________ .
- press joint - -A permanent mechanical joint incorporating an elastomeric
seal and corrosion resistant grip ring is a __________ .
- third party certified - -Plastic pipe, fittings and components shall be
___________ as conforming to NSF 14.
- replaced - -Defective material or parts shall be ___________ or repaired in
such a manner to preserve its original listing.
- 25 - -In bearing partitions, wood studs shall not be cut or notched to a
depth exceeding __________ % of its depth.
- 18, listed - -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.
- 6 - -Equipment shall be suspended a minimum of ________ inches above
the adjoining grade.
- 22 - -Attics containing appliances shall be provided with an opening and
unobstructed passageway not less than _________ inches wide.
- 16, 30 - -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.
- R-3 occupancies - -Providing permanent access to equipment on a roof
does not apply to ____________ .
- 12 - -The clearance reduction methods shown in 308.4.2 shall not be used
to reduce the clearance of solid fuel burning appliances any less than
_________ inches.
, - 10 - -Outdoor intake and exhaust openings shall be located a minimum of
_________ feet from lot lines or buildings on the same lot.
- 100 - -Variable air volume boxes shall be designed to regulate outdoor air
unless they provide _________ % of outdoor air.
- 25 - -Mechanical ventilation systems for enclosed parking garages are not
required to operate continuously when a carbon monoxide detector is
installed until the level reaches ________ ppm.
- manual or automatic - -Mechanical ventilation systems shall be provided
with ________ controls that will operate the system whenever the spaces are
occupied.
- 0.02 - -The mechanical exhaust rate for a crawl space shall be not less
than ___________ cfm per square foot of horizontal area.
- 60 - -Crawl space ventilation must be a minimum 0.02 cfm per square foot
and shall be automatically controlled to operate when the humidity exceeds
___________ %
- outdoors, nuisance - -The air removed by every exhaust system shall be
discharged _____________ and at a point where it will not cause a ____________.
- whole house ventilation type - -Only _________ fans can discharge their
exhaust into the attic of dwelling units that have private attics.
- 6 - -Flammable finish exhaust duct terminations shall be a minimum
___________ feet from exterior walls and roofs.
- 1 - -The exhaust rate for hazardous materials stored in excess of the
maximum allowable quantity shall be provided at a rate of not less than
__________ cfm/ft2 of the storage floor area.
- 200 - -Clothes dryers exhausting more than ________ cfm requires make up
air.
- 35 - -The maximum length of a clothes dryer duct is ___________.
- outside of the airstream - -Commercial type clothes dryers require the fan
motors be located ____________.
- 18 - -The grease duct clearance required when located within a shaft
enclosure is _________ inches to the combustible construction.
Exam Q’s and A’s
Welded - -A mechanical joint is not ________ .
- make up air - -Any combination of outdoor and transfer air intended to
replace exhaust air and exfiltration is ___________.
- duct - -A tube or conduit utilized for conveying air is a ___________ .
- press joint - -A permanent mechanical joint incorporating an elastomeric
seal and corrosion resistant grip ring is a __________ .
- third party certified - -Plastic pipe, fittings and components shall be
___________ as conforming to NSF 14.
- replaced - -Defective material or parts shall be ___________ or repaired in
such a manner to preserve its original listing.
- 25 - -In bearing partitions, wood studs shall not be cut or notched to a
depth exceeding __________ % of its depth.
- 18, listed - -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.
- 6 - -Equipment shall be suspended a minimum of ________ inches above
the adjoining grade.
- 22 - -Attics containing appliances shall be provided with an opening and
unobstructed passageway not less than _________ inches wide.
- 16, 30 - -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.
- R-3 occupancies - -Providing permanent access to equipment on a roof
does not apply to ____________ .
- 12 - -The clearance reduction methods shown in 308.4.2 shall not be used
to reduce the clearance of solid fuel burning appliances any less than
_________ inches.
, - 10 - -Outdoor intake and exhaust openings shall be located a minimum of
_________ feet from lot lines or buildings on the same lot.
- 100 - -Variable air volume boxes shall be designed to regulate outdoor air
unless they provide _________ % of outdoor air.
- 25 - -Mechanical ventilation systems for enclosed parking garages are not
required to operate continuously when a carbon monoxide detector is
installed until the level reaches ________ ppm.
- manual or automatic - -Mechanical ventilation systems shall be provided
with ________ controls that will operate the system whenever the spaces are
occupied.
- 0.02 - -The mechanical exhaust rate for a crawl space shall be not less
than ___________ cfm per square foot of horizontal area.
- 60 - -Crawl space ventilation must be a minimum 0.02 cfm per square foot
and shall be automatically controlled to operate when the humidity exceeds
___________ %
- outdoors, nuisance - -The air removed by every exhaust system shall be
discharged _____________ and at a point where it will not cause a ____________.
- whole house ventilation type - -Only _________ fans can discharge their
exhaust into the attic of dwelling units that have private attics.
- 6 - -Flammable finish exhaust duct terminations shall be a minimum
___________ feet from exterior walls and roofs.
- 1 - -The exhaust rate for hazardous materials stored in excess of the
maximum allowable quantity shall be provided at a rate of not less than
__________ cfm/ft2 of the storage floor area.
- 200 - -Clothes dryers exhausting more than ________ cfm requires make up
air.
- 35 - -The maximum length of a clothes dryer duct is ___________.
- outside of the airstream - -Commercial type clothes dryers require the fan
motors be located ____________.
- 18 - -The grease duct clearance required when located within a shaft
enclosure is _________ inches to the combustible construction.
