FIBER OPTIC CLASS CFOS/T CERTIFICATION
QUESTIONS WITH RIGHT VERIFIED CORRECT
ANSWERS.
Before,a,fiber,is,installed,it,is,often,checked,for,______.,ANS,-,,continuity
What,is,the,difference,between,a,visual,fault,locator,(VFL),and,a,visual,fiber,tracer,(VFT)?,ANS,-
,,the,amount,of,optical,power,coupled,into,the,fiber
What,instrument,detects,poor,splices,or,cable,breaks,in,short,lengths,of,fiber?,ANS,-
,,the,visual,fault,locator,(VFL)
what,finds,faults,in,fiber's,too,close,for,the,OTDR,to,see?,ANS,-,,the,visual,fault,locator,(VFL)
What,detects,scratches,and,polishing,defects,in,connectors?,ANS,-,,Microscope
Before,viewing,a,connector,with,a,microscope,you,should,____________.,ANS,-
,,make,sure,there,is,no,power,present.,(no,light,coming,through)
Where,are,scratches,or,defects,on,a,connector,end,considered,a,problem?,ANS,-,,Anywhere,on,the,core
What,happens,if,you,use,a,microscope,with,excessively,high,magnification?,ANS,-
,,Small,scratches,and,defects,appear,worse,than,they,truly,are
When,viewing,a,connector,with,a,microscope,,which,method,allows,for,the,best,inspection,for,scratches?,
ANS,-,,at,an,angle,,with,lighting,at,an,angle
What,instrument,detects,a,2,kHz,tone?,ANS,-,,a,fiber,identifier
What,is,0,dBm?,ANS,-,,1,mw,(milliwatt)
, What,is,the,m,in,dBm,represent?,ANS,-,,reference,to,milliwatt
a,loss,of,20,dB,means,power,is,less,than,by,how,many,times?,ANS,-,,100
a,loss,of,3,dB,means,power,is,less,by,what,________%?,ANS,-,,50%
Of,the,following,4,which,of,these,has,the,highest,power?,
-20,dBm,,-30,dBm,10mw,,or,100mw,ANS,-,,100,mw
What,does,not,affect,loss,readings?,ANS,-,,meter,calibration,wavelength
What,is,the,most,basic,measurement,parameter,in,fiber,and,is,required,for,almost,all,fiber,optic,tests?,AN
S,-,,optical,power
Why,do,power,meters,measure,in,dB?,ANS,-,,measures,the,loss,directly
What,is,optional,on,a,power,meter?,ANS,-,,its,the,display,readout,resolution,(ex.,.1,,.01)
is,the,testing,of,optical,power,ANS,-,,FOTP-95
testing,of,patch,cords,ANS,-,,FOTP-171
testing,of,installed,cable,plant,ANS,-,,OFSTP-14
Why,is,insertion,loss,testing,with,a,source,and,meter,the,required,method,of,testing,cable,plants,for,netw
orks?,ANS,-,,It,approximates,how,the,system,will,be,used
Which,test,method,measures,only,one,connector,on,the,cable?,ANS,-,,single,ended
QUESTIONS WITH RIGHT VERIFIED CORRECT
ANSWERS.
Before,a,fiber,is,installed,it,is,often,checked,for,______.,ANS,-,,continuity
What,is,the,difference,between,a,visual,fault,locator,(VFL),and,a,visual,fiber,tracer,(VFT)?,ANS,-
,,the,amount,of,optical,power,coupled,into,the,fiber
What,instrument,detects,poor,splices,or,cable,breaks,in,short,lengths,of,fiber?,ANS,-
,,the,visual,fault,locator,(VFL)
what,finds,faults,in,fiber's,too,close,for,the,OTDR,to,see?,ANS,-,,the,visual,fault,locator,(VFL)
What,detects,scratches,and,polishing,defects,in,connectors?,ANS,-,,Microscope
Before,viewing,a,connector,with,a,microscope,you,should,____________.,ANS,-
,,make,sure,there,is,no,power,present.,(no,light,coming,through)
Where,are,scratches,or,defects,on,a,connector,end,considered,a,problem?,ANS,-,,Anywhere,on,the,core
What,happens,if,you,use,a,microscope,with,excessively,high,magnification?,ANS,-
,,Small,scratches,and,defects,appear,worse,than,they,truly,are
When,viewing,a,connector,with,a,microscope,,which,method,allows,for,the,best,inspection,for,scratches?,
ANS,-,,at,an,angle,,with,lighting,at,an,angle
What,instrument,detects,a,2,kHz,tone?,ANS,-,,a,fiber,identifier
What,is,0,dBm?,ANS,-,,1,mw,(milliwatt)
, What,is,the,m,in,dBm,represent?,ANS,-,,reference,to,milliwatt
a,loss,of,20,dB,means,power,is,less,than,by,how,many,times?,ANS,-,,100
a,loss,of,3,dB,means,power,is,less,by,what,________%?,ANS,-,,50%
Of,the,following,4,which,of,these,has,the,highest,power?,
-20,dBm,,-30,dBm,10mw,,or,100mw,ANS,-,,100,mw
What,does,not,affect,loss,readings?,ANS,-,,meter,calibration,wavelength
What,is,the,most,basic,measurement,parameter,in,fiber,and,is,required,for,almost,all,fiber,optic,tests?,AN
S,-,,optical,power
Why,do,power,meters,measure,in,dB?,ANS,-,,measures,the,loss,directly
What,is,optional,on,a,power,meter?,ANS,-,,its,the,display,readout,resolution,(ex.,.1,,.01)
is,the,testing,of,optical,power,ANS,-,,FOTP-95
testing,of,patch,cords,ANS,-,,FOTP-171
testing,of,installed,cable,plant,ANS,-,,OFSTP-14
Why,is,insertion,loss,testing,with,a,source,and,meter,the,required,method,of,testing,cable,plants,for,netw
orks?,ANS,-,,It,approximates,how,the,system,will,be,used
Which,test,method,measures,only,one,connector,on,the,cable?,ANS,-,,single,ended
