FDNY A21 CYCLE 1&2 GUIDE QUESTIONS WITH
COMPLETE SOLUTIONS ,
-one,bed,of,3-1/2,inch,hose,
-one,bed,of,2-1/2,inch,hose
-two,beds,with,lead,lengths,of,1-3/4,inch,hose,coupled,to,2-1/2,inch,hose,to,finish,out,the,load,,ANS,-
,,The,typical,hose,load,has:
no,more,than,six,lengths,of,1-
3/4,hose,shall,be,used,as,lead,lengths.,this,is,because,any,more,than,six,lengths,may,cause,greater,friction,
loss,and,may,exceed,the,maximum,working,pressure,of,250,psi.,,ANS,-,,How,many,lengths,of,1-
3/4,hose,shall,be,used,as,lead,lengths,in,any,hose,stretch,and,why?:
true,,ANS,-
,,when,folding,hose,,,one,should,avoid,old,bends,since,repeating,bends,in,the,same,spots,may,lead,to,crac
king,and,kinking,of,the,rubber,lining.,true,or,false?:
a,hose,line,appliance,that,is,either,single,unit,or,multi,unit,in,that,is,is,composed,of,one,or,more,sub,assem
blies.,it,is,used,to,direct,the,flow,of,water,,increase,the,velocity,or,flow,,or,disperse,the,water,in,small,drop
lets,or,fog,in,various,patterns,,ANS,-,,Define:,Nozzle
a,solid,stream,tip,designed,to,be,attached,directly,to,the,hose,butt.,it,differs,from,a,main,stream,tip,in,that
,no,threads,are,provided,at,the,outlet,orifice.,,ANS,-,,what,is,an,open,nozzle?
any,nozzle,which,contains,a,mechanism,for,controlling,the,flow,of,water,at,the,nozzle,,ANS,-
,,Define:,Controlling,nozzle
any,nozzle,carried,attached,to,hose,in,hose,bed,of,the,apparatus,,ANS,-,,Define:,working,nozzle
the,section,of,nozzle,that,contains,the,water,control,valve.,ex,the,horseshoe,shaped,control,handle,,ANS,-
,,Define,:,shut,off,as,it,pertains,to,nozzles.
,an,attachment,usually,connected,to,the,shut,off,or,a,hose,butt,it,performs,the,basic,function,of,the,nozzle,
and,is,designed,in,various,forms,,ANS,-,,Define:,tip
solid,stream,tips,are,generally,stacked.,stacked,tips,for,hand,lines,are,limited,to,main,solid,stream,tip,and,
outer,solid,stream,tip.,,ANS,-,,what,are,solid,stream,tips,and,what,are,the,two,individual,kinds?
an,MST,is,fitted,with,threads,at,its,outlet,orifice,,it,is,the,first,tip,of,the,stack,and,is,directed,directly,to,a,sh
ut,off.,generally,the,FDNY,outfits,the,MST,with,a,1-1/2,inch,thread.,,ANS,-
,,what,is,a,main,solid,stream,tip,and,generally,what,size,thread,does,it,have?
an,OST,does,not,have,outlet,orifice,threads,and,is,threaded,at,its,inlet,for,attachment,to,an,mst,to,further,
reduce,bore,diameter,the,1/2,inch,tip,is,an,ost,,ANS,-,,define:,outer,solid,stream,tips
most,common,types,have,a,outer,rotating,barrel,which,is,used,for,stream,adjustments,and,in,some,model
s,as,a,shut,off.,,ANS,-,,define,fog,tip
most,fog,tips,are,classified,as,combination,straight,stream,fog,devices.,the,straight,stream,is,hollow,and,t
he,fog,patterns,depend,on,adjustments,permitted,by,the,outer,rotating,barrel,,ANS,-
,,how,are,fog,tips,classified,and,how,are,the,streams,adjusted?
a,fog,producing,device,that,contains,addition,outer,rotating,barrel,a,ball,type,shut,of,as,an,integral,part,of,
its,assembly,,ANS,-,,define,fog,nozzle:
these,terms,define,what,occurs,to,the,amount,of,water,being,discharged,when,the,pattern,selection,is,ch
anged,,ANS,-,,what,does,constant,flow,or,variable,flow,describe?
once,a,given,flow,had,been,established,a,flow,will,remain,constant,and,will,not,vary,if,the,discharge,patter
n,is,changed,because,of,this,feature,member,must,be,aware,that,the,volume,discharged,may,be,less,than,
required,,ANS,-,,define,constant,flow:
once,a,given,flow,has,been,established,flow,will,vary,if,the,discharge,pattern,is,changed,for,example,more,
water,is,generally,delivered,in,the,fog,position,than,in,the,straight,stream,position,,ANS,-
,,define,variable,flow
, these,terms,define,what,occurs,to,the,nozzle,pressure,when,the,amount,of,water,being,supplied,to,the,tip
/,nozzle,is,increased,or,decreased.,,ANS,-
,,what,does,the,terms,constant,pressure,or,variable,pressure,define?
nozzle,pressure,will,vary,directly,as,the,water,being,supplied,is,increased,or,decreased,depending,on,nozzl
e,design,nozzle,pressure,may,or,may,not,be,affected,by,changes,in,pattern,selection,,ANS,-
,,define,variable,pressure
nozzle,pressure,remains,practically,constant,within,the,operation,limits,of,the,automatic,feature,of,the,tip
,as,the,water,being,supplied,is,increased,or,decreased,changes,in,pattern,selection,will,not,affect,nozzle,pr
essure,,ANS,-,,define,constant,pressure:
false.,the,ft-1,and,ft-2,are,automatic,tips,which,provide,constant,flow,,ANS,-,,the,ft-1,and,ft-
2,are,non,automatic,adjusting,tips,which,provide,variable,flow,true,or,false?
80-200,gpm,@,70-93,psi,,ANS,-,,what,is,the,operating,range,of,the,ft-1,nozzle?
85,-,325,gpm,@,65-105,psi,,ANS,-,,what,is,the,operating,range,of,the,ft-2,nozzle?
insufficient,engine,pressure,has,been,maintained,and,the,tip,is,automatically,adjusting,by,reducing,the,dis
charge,orifice,and,reducing,the,gallons,flow,,ANS,-,,while,using,an,ft-1,or,ft-
2,nozzle,the,firefighter,notices,that,the,nozzle,reaction,has,decreased,and,become,easier,to,handle.,the,st
ream,appears,adequate,but,it,seems,the,cooling,power,has,been,reduced,and,the,stream,is,not,an,accept
able,fire,fighting,stream.,what,has,happened?
when,using,,the,initial,stream,pattern,should,be,the,straight,stream,which,is,the,setting,that,is,all,the,to,th
e,right.,the,stream,should,be,altered,to,optimum,fog,patterns,as,conditions,dictate,,ANS,-
,,when,using,the,ft-1,or,ft-2,nozzle,the,initial,stream,should,be,what?,and,how,is,that,setting,reached
place,the,index,finger,in,into,the,bore,if,the,finger,can,be,inserted,one,half,the,length,of,the,first,joint,,the,
tip,is,in,the,straight,stream,position,,ANS,-,,how,does,one,verify,that,the,ft-
1,tip,is,in,the,straight,stream,position,?
COMPLETE SOLUTIONS ,
-one,bed,of,3-1/2,inch,hose,
-one,bed,of,2-1/2,inch,hose
-two,beds,with,lead,lengths,of,1-3/4,inch,hose,coupled,to,2-1/2,inch,hose,to,finish,out,the,load,,ANS,-
,,The,typical,hose,load,has:
no,more,than,six,lengths,of,1-
3/4,hose,shall,be,used,as,lead,lengths.,this,is,because,any,more,than,six,lengths,may,cause,greater,friction,
loss,and,may,exceed,the,maximum,working,pressure,of,250,psi.,,ANS,-,,How,many,lengths,of,1-
3/4,hose,shall,be,used,as,lead,lengths,in,any,hose,stretch,and,why?:
true,,ANS,-
,,when,folding,hose,,,one,should,avoid,old,bends,since,repeating,bends,in,the,same,spots,may,lead,to,crac
king,and,kinking,of,the,rubber,lining.,true,or,false?:
a,hose,line,appliance,that,is,either,single,unit,or,multi,unit,in,that,is,is,composed,of,one,or,more,sub,assem
blies.,it,is,used,to,direct,the,flow,of,water,,increase,the,velocity,or,flow,,or,disperse,the,water,in,small,drop
lets,or,fog,in,various,patterns,,ANS,-,,Define:,Nozzle
a,solid,stream,tip,designed,to,be,attached,directly,to,the,hose,butt.,it,differs,from,a,main,stream,tip,in,that
,no,threads,are,provided,at,the,outlet,orifice.,,ANS,-,,what,is,an,open,nozzle?
any,nozzle,which,contains,a,mechanism,for,controlling,the,flow,of,water,at,the,nozzle,,ANS,-
,,Define:,Controlling,nozzle
any,nozzle,carried,attached,to,hose,in,hose,bed,of,the,apparatus,,ANS,-,,Define:,working,nozzle
the,section,of,nozzle,that,contains,the,water,control,valve.,ex,the,horseshoe,shaped,control,handle,,ANS,-
,,Define,:,shut,off,as,it,pertains,to,nozzles.
,an,attachment,usually,connected,to,the,shut,off,or,a,hose,butt,it,performs,the,basic,function,of,the,nozzle,
and,is,designed,in,various,forms,,ANS,-,,Define:,tip
solid,stream,tips,are,generally,stacked.,stacked,tips,for,hand,lines,are,limited,to,main,solid,stream,tip,and,
outer,solid,stream,tip.,,ANS,-,,what,are,solid,stream,tips,and,what,are,the,two,individual,kinds?
an,MST,is,fitted,with,threads,at,its,outlet,orifice,,it,is,the,first,tip,of,the,stack,and,is,directed,directly,to,a,sh
ut,off.,generally,the,FDNY,outfits,the,MST,with,a,1-1/2,inch,thread.,,ANS,-
,,what,is,a,main,solid,stream,tip,and,generally,what,size,thread,does,it,have?
an,OST,does,not,have,outlet,orifice,threads,and,is,threaded,at,its,inlet,for,attachment,to,an,mst,to,further,
reduce,bore,diameter,the,1/2,inch,tip,is,an,ost,,ANS,-,,define:,outer,solid,stream,tips
most,common,types,have,a,outer,rotating,barrel,which,is,used,for,stream,adjustments,and,in,some,model
s,as,a,shut,off.,,ANS,-,,define,fog,tip
most,fog,tips,are,classified,as,combination,straight,stream,fog,devices.,the,straight,stream,is,hollow,and,t
he,fog,patterns,depend,on,adjustments,permitted,by,the,outer,rotating,barrel,,ANS,-
,,how,are,fog,tips,classified,and,how,are,the,streams,adjusted?
a,fog,producing,device,that,contains,addition,outer,rotating,barrel,a,ball,type,shut,of,as,an,integral,part,of,
its,assembly,,ANS,-,,define,fog,nozzle:
these,terms,define,what,occurs,to,the,amount,of,water,being,discharged,when,the,pattern,selection,is,ch
anged,,ANS,-,,what,does,constant,flow,or,variable,flow,describe?
once,a,given,flow,had,been,established,a,flow,will,remain,constant,and,will,not,vary,if,the,discharge,patter
n,is,changed,because,of,this,feature,member,must,be,aware,that,the,volume,discharged,may,be,less,than,
required,,ANS,-,,define,constant,flow:
once,a,given,flow,has,been,established,flow,will,vary,if,the,discharge,pattern,is,changed,for,example,more,
water,is,generally,delivered,in,the,fog,position,than,in,the,straight,stream,position,,ANS,-
,,define,variable,flow
, these,terms,define,what,occurs,to,the,nozzle,pressure,when,the,amount,of,water,being,supplied,to,the,tip
/,nozzle,is,increased,or,decreased.,,ANS,-
,,what,does,the,terms,constant,pressure,or,variable,pressure,define?
nozzle,pressure,will,vary,directly,as,the,water,being,supplied,is,increased,or,decreased,depending,on,nozzl
e,design,nozzle,pressure,may,or,may,not,be,affected,by,changes,in,pattern,selection,,ANS,-
,,define,variable,pressure
nozzle,pressure,remains,practically,constant,within,the,operation,limits,of,the,automatic,feature,of,the,tip
,as,the,water,being,supplied,is,increased,or,decreased,changes,in,pattern,selection,will,not,affect,nozzle,pr
essure,,ANS,-,,define,constant,pressure:
false.,the,ft-1,and,ft-2,are,automatic,tips,which,provide,constant,flow,,ANS,-,,the,ft-1,and,ft-
2,are,non,automatic,adjusting,tips,which,provide,variable,flow,true,or,false?
80-200,gpm,@,70-93,psi,,ANS,-,,what,is,the,operating,range,of,the,ft-1,nozzle?
85,-,325,gpm,@,65-105,psi,,ANS,-,,what,is,the,operating,range,of,the,ft-2,nozzle?
insufficient,engine,pressure,has,been,maintained,and,the,tip,is,automatically,adjusting,by,reducing,the,dis
charge,orifice,and,reducing,the,gallons,flow,,ANS,-,,while,using,an,ft-1,or,ft-
2,nozzle,the,firefighter,notices,that,the,nozzle,reaction,has,decreased,and,become,easier,to,handle.,the,st
ream,appears,adequate,but,it,seems,the,cooling,power,has,been,reduced,and,the,stream,is,not,an,accept
able,fire,fighting,stream.,what,has,happened?
when,using,,the,initial,stream,pattern,should,be,the,straight,stream,which,is,the,setting,that,is,all,the,to,th
e,right.,the,stream,should,be,altered,to,optimum,fog,patterns,as,conditions,dictate,,ANS,-
,,when,using,the,ft-1,or,ft-2,nozzle,the,initial,stream,should,be,what?,and,how,is,that,setting,reached
place,the,index,finger,in,into,the,bore,if,the,finger,can,be,inserted,one,half,the,length,of,the,first,joint,,the,
tip,is,in,the,straight,stream,position,,ANS,-,,how,does,one,verify,that,the,ft-
1,tip,is,in,the,straight,stream,position,?
