CDET – MANUAL QUESTIONS AND
ANSWERS
15,000=-=ans-✔✔2017=-=How=many=reported=dryer=and=dryer=vent=fires=annually.
14,970=-=ans-
✔✔From=2010=to=2014=fire=department=responded=to=an=average=of=_________clothe
s=dryer=fires=each=year
12=-=ans-✔✔From=2010=to=2014=what=was=the=death=toll=due=to=dryer=fires?
405=-=ans-✔✔From=2010=to=2014=_______=injuries=occur=due=to=dryer=fires
$219=million=-=ans-
✔✔From=2010=to=2014=$_______=million=dollars=occurred=due=to=dryer=vent=fires.
Lint=but=animal=nest=are=included=-=ans-
✔✔What=is=the=primary=fuel=in=dryer=vent=fires?
Especially=long=runs=and=radical=bends=-=ans-
✔✔The=most=problematic=dryer=exhaust=system=are=those=that=have=_________=____
___=________=and=_______=_______=in=the=walls.
By=cleaning=the=duct=-=ans-
✔✔What=is=the=only=way=to=determine=the=relative=integrity=of=the=exhaust=system?
Rigid,=galvanized=pipe=in=the=proper=diameter=-=ans-✔✔What=is=the=ideal=duct?
Moisture=related=-=ans-
✔✔Many=common=problems=that=can=occur=because=of=blocked=or=disconnected=vent
s=will=be=________=________
Clean=exhaust=duct=allows=discharge=of=heat,=moisture=and=combustion=byproducts=in
=the=case=of=gas-fire=dryers=without=undue=resistance=-=ans-✔✔Efficiency
Back=pressure=-=ans-✔✔Resistant=will=create________=________=in=the=system
, Clothes,=take=much=longer=to=dry,=resulting=in=wasted=energy,=natural=resources,=and=
time.=The=result=will=show=up=in=increased=utility=cost.=-=ans-
✔✔What=will=happen=to=clothes=without=good=exhaust=flow=throughout=the=system?
1)=The=Magnehelic=gauge=or=Manometer
2)=The=Vane=Anemometer=-=ans-
✔✔What=are=the=two=efficient=ways=to=test=a=dryer=exhaust=system=for=a=good=airflow
=capabilities?
Rotary=cleaning=and=compression=air=equipment=-=ans-
✔✔What=are=two=specialized=dryer=exhaust=cleaning=tools=used=today?.
A=device=used=to=dry=wet,=laundry,=by=means=of=heat,=diverted=from=combustion=of=fu
el=or=from=electric=heating=elements=-=ans-✔✔Definition=of=a=clothes=dryer
Factory=built,=mass-
produce,=Dreyer,=primarily=used=in=a=family=living=environment.=It=may=or=may=not=be=
coin=operate=for=public=use,=and=usually=is=the=smallest=unit=but=physically=and=then=f
unction.=-=ans-✔✔What=is=a=Type=1=Clothes=Dryer
A=factory=built,=mass=produced=dryer=used=in=a=commercial=business.=It=may,=or=may=
not=be=operated=by=the=public=or=a=hired=attendant.=It=might,=or=might=not=be=quaint,=o
perated=and=is=not=designed=for=use=in=an=individual=family=living=in=environment.=It=c
an=be=small,=medium=or=large.=-=ans-✔✔What=is=a=Type=2=Clothes=Dryer?
Properly=described=as=a=duct=system=used=to=discharge,=Key,=moisture=and=combusti
on=by=products=from=clothes=dryer=to=the=outside=of=a=home=or=building=-=ans-
✔✔What=is=a=dryer=exhaust=system?
Replaced=with=metal=ductwork=-=ans-
✔✔If=existing=ductwork=is=plastic,=nonmetal=or=a=combustible,=it=should=be=_________
=_______=_________=_________
Independent=-=ans-
✔✔Dryer=exhaust=system=should=be=_____________=of=all=other=venting=system
No=-=ans-✔✔Can=a=dryer=be=connected=to=a=Masonry=chimney?
Rigid=transition=duct=shall=be=conducted=of=minimum=0.016=inch=thick=(28=gauge)=rigid
=metal=duct=pipe,=having=smooth=interior=surfaces=with=joints,=running=in=the=direction=
of=the=airflow.=-=ans-✔✔What=should=rigid=transition=duct=be=constructed=of?
Shall=be=use=the=transition=ducts=-=ans-
✔✔What=shall=flexible=duct=connectors=be=used=for?
ANSWERS
15,000=-=ans-✔✔2017=-=How=many=reported=dryer=and=dryer=vent=fires=annually.
14,970=-=ans-
✔✔From=2010=to=2014=fire=department=responded=to=an=average=of=_________clothe
s=dryer=fires=each=year
12=-=ans-✔✔From=2010=to=2014=what=was=the=death=toll=due=to=dryer=fires?
405=-=ans-✔✔From=2010=to=2014=_______=injuries=occur=due=to=dryer=fires
$219=million=-=ans-
✔✔From=2010=to=2014=$_______=million=dollars=occurred=due=to=dryer=vent=fires.
Lint=but=animal=nest=are=included=-=ans-
✔✔What=is=the=primary=fuel=in=dryer=vent=fires?
Especially=long=runs=and=radical=bends=-=ans-
✔✔The=most=problematic=dryer=exhaust=system=are=those=that=have=_________=____
___=________=and=_______=_______=in=the=walls.
By=cleaning=the=duct=-=ans-
✔✔What=is=the=only=way=to=determine=the=relative=integrity=of=the=exhaust=system?
Rigid,=galvanized=pipe=in=the=proper=diameter=-=ans-✔✔What=is=the=ideal=duct?
Moisture=related=-=ans-
✔✔Many=common=problems=that=can=occur=because=of=blocked=or=disconnected=vent
s=will=be=________=________
Clean=exhaust=duct=allows=discharge=of=heat,=moisture=and=combustion=byproducts=in
=the=case=of=gas-fire=dryers=without=undue=resistance=-=ans-✔✔Efficiency
Back=pressure=-=ans-✔✔Resistant=will=create________=________=in=the=system
, Clothes,=take=much=longer=to=dry,=resulting=in=wasted=energy,=natural=resources,=and=
time.=The=result=will=show=up=in=increased=utility=cost.=-=ans-
✔✔What=will=happen=to=clothes=without=good=exhaust=flow=throughout=the=system?
1)=The=Magnehelic=gauge=or=Manometer
2)=The=Vane=Anemometer=-=ans-
✔✔What=are=the=two=efficient=ways=to=test=a=dryer=exhaust=system=for=a=good=airflow
=capabilities?
Rotary=cleaning=and=compression=air=equipment=-=ans-
✔✔What=are=two=specialized=dryer=exhaust=cleaning=tools=used=today?.
A=device=used=to=dry=wet,=laundry,=by=means=of=heat,=diverted=from=combustion=of=fu
el=or=from=electric=heating=elements=-=ans-✔✔Definition=of=a=clothes=dryer
Factory=built,=mass-
produce,=Dreyer,=primarily=used=in=a=family=living=environment.=It=may=or=may=not=be=
coin=operate=for=public=use,=and=usually=is=the=smallest=unit=but=physically=and=then=f
unction.=-=ans-✔✔What=is=a=Type=1=Clothes=Dryer
A=factory=built,=mass=produced=dryer=used=in=a=commercial=business.=It=may,=or=may=
not=be=operated=by=the=public=or=a=hired=attendant.=It=might,=or=might=not=be=quaint,=o
perated=and=is=not=designed=for=use=in=an=individual=family=living=in=environment.=It=c
an=be=small,=medium=or=large.=-=ans-✔✔What=is=a=Type=2=Clothes=Dryer?
Properly=described=as=a=duct=system=used=to=discharge,=Key,=moisture=and=combusti
on=by=products=from=clothes=dryer=to=the=outside=of=a=home=or=building=-=ans-
✔✔What=is=a=dryer=exhaust=system?
Replaced=with=metal=ductwork=-=ans-
✔✔If=existing=ductwork=is=plastic,=nonmetal=or=a=combustible,=it=should=be=_________
=_______=_________=_________
Independent=-=ans-
✔✔Dryer=exhaust=system=should=be=_____________=of=all=other=venting=system
No=-=ans-✔✔Can=a=dryer=be=connected=to=a=Masonry=chimney?
Rigid=transition=duct=shall=be=conducted=of=minimum=0.016=inch=thick=(28=gauge)=rigid
=metal=duct=pipe,=having=smooth=interior=surfaces=with=joints,=running=in=the=direction=
of=the=airflow.=-=ans-✔✔What=should=rigid=transition=duct=be=constructed=of?
Shall=be=use=the=transition=ducts=-=ans-
✔✔What=shall=flexible=duct=connectors=be=used=for?
