MICHIGAN MECHANICAL CODE EXAM WITH VERIFIED
ANSWERS
1.any dcombination dof doutdoor dand dtransfer dair dintended dto dreplace
dexhaust dair dand dexfiltration dis: dmake dup dair
2.a dtube dor dconduit dutilized dfor dconveying dair dis da: dduct dsystem
3.a dmechanical djoint dis dnot: dwelded
4.a dpermanent dmechanical djoint dincorporating dan delastomeric dseal dand
dcorro- dsion dresistant dgrip dring dis da: dpress djoint
5.plastic dpipe dfittings dand dcomponents dshall dbe d as dconforming dto
dNSF d14: dthird dparty dcertified
6.defective dmaterial dor dparts dshall dbe d or drepaired din dsuch da dmanner
dto dpreserve dits doriginal dlisting: dreplaced
7.in dbearing dpartitions dwood dstuds dshall dnot dbe dcut dor dnotched dto da
ddepth dexceeding d% dof dits ddepth: d25%
8.equipment dwith dan dignition dsource dShall dbe delevated dsuch dthat dthe
dignition dsource dis dnot dless dthan d inches dabove dthe dgarage dfloor dunless
dthe dappliance dis d as dflammable dVapor dignition dresistant: d18"
dlisted
9.equipment dshall dbe dsuspended da dminimum dof d inches dabove
dadjoining dgrade: d6 dinches
1 d/
d9
, 10.1 din dCPVC dpipe dmust dhave dhangers devery d feet dhorizontally dand d
dfeet dvertically: d3ft d10ft
11.attic dcontaining dappliances dshall dbe dprovided dwith dan dopening dand
dunob- dstructed dpassageway dnot dless dthan d wide: d22"
12.equipment don delevated dstructures dor droofs dabove d requiring
daccess dmust dbe dprovided dwith dan dinterior dor dexterior daccess dthat ddoes
dnot drequire dclimbing dover dobstructions d high: d16ft d30
dinches
13.providing dpermanent daccess dto dequipment don da droof ddoes dnot dapply dt
: dR-3 doccupancies
14.using d24 dgauge dgalvanized dsheet dmetal dspaced d1-in doff dthe
dcombustible dwall dwill dpermit da dreduction dfrom d36 din dto inches dto dthe
dvertical dwall dfor dan doil-fired dfurnace: d12inches
15.the dclearance dreduction dmethods dshown din dthe dtable d308.4.2 dshall
dnot dbe dused dto dreduce dthe dclearance dof dsolid dfuel dburning
dappliances dany dless dthan: d12"
16.outdoor dintake dand dexhaust dopening dshall dbe dlocated da dminimum dof
dfeet dfrom dlot dlines dor dbuildings don dthe dsame dlot: d10 dft
17.repair dgarages drequire da dminimum of dexhaust dair dflow: d.75 dcfm/ft
18.smoking dlounges dare dallowed people dper d1,000 dsqft: d70
19.variable dair dvolume dboxes dshall dbe ddesigned dto dregulate doutdoor dair
dunless dthey dprovide d % dof doutdoor dair: d100%
2 d/
d9
ANSWERS
1.any dcombination dof doutdoor dand dtransfer dair dintended dto dreplace
dexhaust dair dand dexfiltration dis: dmake dup dair
2.a dtube dor dconduit dutilized dfor dconveying dair dis da: dduct dsystem
3.a dmechanical djoint dis dnot: dwelded
4.a dpermanent dmechanical djoint dincorporating dan delastomeric dseal dand
dcorro- dsion dresistant dgrip dring dis da: dpress djoint
5.plastic dpipe dfittings dand dcomponents dshall dbe d as dconforming dto
dNSF d14: dthird dparty dcertified
6.defective dmaterial dor dparts dshall dbe d or drepaired din dsuch da dmanner
dto dpreserve dits doriginal dlisting: dreplaced
7.in dbearing dpartitions dwood dstuds dshall dnot dbe dcut dor dnotched dto da
ddepth dexceeding d% dof dits ddepth: d25%
8.equipment dwith dan dignition dsource dShall dbe delevated dsuch dthat dthe
dignition dsource dis dnot dless dthan d inches dabove dthe dgarage dfloor dunless
dthe dappliance dis d as dflammable dVapor dignition dresistant: d18"
dlisted
9.equipment dshall dbe dsuspended da dminimum dof d inches dabove
dadjoining dgrade: d6 dinches
1 d/
d9
, 10.1 din dCPVC dpipe dmust dhave dhangers devery d feet dhorizontally dand d
dfeet dvertically: d3ft d10ft
11.attic dcontaining dappliances dshall dbe dprovided dwith dan dopening dand
dunob- dstructed dpassageway dnot dless dthan d wide: d22"
12.equipment don delevated dstructures dor droofs dabove d requiring
daccess dmust dbe dprovided dwith dan dinterior dor dexterior daccess dthat ddoes
dnot drequire dclimbing dover dobstructions d high: d16ft d30
dinches
13.providing dpermanent daccess dto dequipment don da droof ddoes dnot dapply dt
: dR-3 doccupancies
14.using d24 dgauge dgalvanized dsheet dmetal dspaced d1-in doff dthe
dcombustible dwall dwill dpermit da dreduction dfrom d36 din dto inches dto dthe
dvertical dwall dfor dan doil-fired dfurnace: d12inches
15.the dclearance dreduction dmethods dshown din dthe dtable d308.4.2 dshall
dnot dbe dused dto dreduce dthe dclearance dof dsolid dfuel dburning
dappliances dany dless dthan: d12"
16.outdoor dintake dand dexhaust dopening dshall dbe dlocated da dminimum dof
dfeet dfrom dlot dlines dor dbuildings don dthe dsame dlot: d10 dft
17.repair dgarages drequire da dminimum of dexhaust dair dflow: d.75 dcfm/ft
18.smoking dlounges dare dallowed people dper d1,000 dsqft: d70
19.variable dair dvolume dboxes dshall dbe ddesigned dto dregulate doutdoor dair
dunless dthey dprovide d % dof doutdoor dair: d100%
2 d/
d9
