ES3J Study Questions With Correct
Answers
Rectifier b- bcorrect banswers✔✔What bpart bof bpower bsupply bconverts belectrical
bcurrent bfrom bAC bto bDC
Grounded bloop b- bcorrect banswers✔✔Tearing bor bflagging bof ba bvideo bpicture bis bthe
bdirect bresult bof
Frequency bmultiplexing b- bcorrect banswers✔✔You bhave ba bfrequency bthat bhas bbeen
bamplified bto bfour bfrequencies bthe bchange bis bcalled
19-23" bwide b- bcorrect banswers✔✔Which bof bthe bfollowing bis btrue bof ban bequipment
brack?
In bseries bwith bthe bheating bcontacts b- bcorrect banswers✔✔The bheat banticipator bon
bthe bload bof ba bline bvoltage bthermostat bis bconnected b______?
75 b- bcorrect banswers✔✔The bstandard bimpedence bof ba bstandard bvideo bcoax bcable
bis b____ bOHMS?
Boost btransformer b- bcorrect banswers✔✔How bdo byou bincrease bthe bvoltage bthrough
ba bcircuit bafter bit bpasses bthrough?
Reflective blight b- bcorrect banswers✔✔How bwould byou bget bthe bbest bpicture bon ba
bmonitor?
Green bwith ba byellow bstripe b- bcorrect banswers✔✔What bis bthe bcolor bof ban
bequipment bgrounding bwire?
, 900 bOHM b- bcorrect banswers✔✔What bis bthe bminimum bresistance berror bof ba b1000
bOHM bresistor bwith ban berror bof b10%?
Fiber bOptic b- bcorrect banswers✔✔The bbest bproduct bfor ba bclosed bcircuit bsystem bis
bwith bmore bthan b7000 bwithout breamplification bis?
The bF bspeed bstop bof bthe blens b- bcorrect banswers✔✔What bis ba bcameras bsensitivity
bbased bon?
Balancing bTransformer b- bcorrect banswers✔✔How bdo byou bget brid bof bsnow bon ba
bmonitor?
Ceiling bgrid b- bcorrect banswers✔✔When bmounting ban binterior bcamera bwhich bof bthe
bfollowing bis bnot ba bsuitable blocation?
Fiber bOptic bCable b- bcorrect banswers✔✔Given: bHardwire balarm bsystem bcontrol
bpanel bshould bbe binstalled bso bthat bthey bhelp breduce bmagnetic bdowntime band bfalse
balarms, belectromagnetic binterference bmust bbe bprevented bfrom bentering bthe bsystem
bcontrol bpanel band bcausing binterference. bWhich bof bthe bfollowing beliminates bEMI?
Short bCircuit b- bcorrect banswers✔✔Which bof bthe bfollowing bshould bnot bcause ba
bswinger?
Radiated bEnergy b- bcorrect banswers✔✔When bwhite band bblack bbars bappear bon ba
bvideo bmonitor, bthis bcondition bis bknown bas bhum, bwhat bcauses bthis bcondition?
Voltage b- bcorrect banswers✔✔Which bof bthe bfollowing bfactors bwould bnot baffect bthe
btemperature bof bconductors bunder ba bfull bload?
Star, bbus, bhierrachal bARE bALL bmultipoint b- bcorrect banswers✔✔What btype bof
bnetwork bis bnot bconsidered bmultipoint?
Voltmeter b- bcorrect banswers✔✔What bdevice bis bbest bused bto btest ba bdry bcell?
Shorted b- bcorrect banswers✔✔A blength bof bCOAX bcable bused bfor bdata bis
bterminated bat bone bend bwith b50 bOHM bterminator, bthe bresistance bbetween bthe
bshield band bthe bcenter bconductor bat bthe bother bend bof bthe bcable bis b0 bOHMS; bthis
bindicated bthe bcable bcontinuity bis b_____?
Bell bCurrent bStays b- bcorrect banswers✔✔All bof bthe bfollowing bare badvantages bto
busing ba brelay bto bremote bactuate ba bsignaling bdevice bexcept?
44 b- bcorrect banswers✔✔Given: b4 bSpeakers bwired bin bseried bof b4 bOHMS, b8
bOHMS, b16 bOHMS, band b16 bOHMS, bwhat bis bthe btotal bimpedence?
Black b- bcorrect banswers✔✔The bpower bwire bfor bAC bis bdesignated bby bwhat bcolor?
Answers
Rectifier b- bcorrect banswers✔✔What bpart bof bpower bsupply bconverts belectrical
bcurrent bfrom bAC bto bDC
Grounded bloop b- bcorrect banswers✔✔Tearing bor bflagging bof ba bvideo bpicture bis bthe
bdirect bresult bof
Frequency bmultiplexing b- bcorrect banswers✔✔You bhave ba bfrequency bthat bhas bbeen
bamplified bto bfour bfrequencies bthe bchange bis bcalled
19-23" bwide b- bcorrect banswers✔✔Which bof bthe bfollowing bis btrue bof ban bequipment
brack?
In bseries bwith bthe bheating bcontacts b- bcorrect banswers✔✔The bheat banticipator bon
bthe bload bof ba bline bvoltage bthermostat bis bconnected b______?
75 b- bcorrect banswers✔✔The bstandard bimpedence bof ba bstandard bvideo bcoax bcable
bis b____ bOHMS?
Boost btransformer b- bcorrect banswers✔✔How bdo byou bincrease bthe bvoltage bthrough
ba bcircuit bafter bit bpasses bthrough?
Reflective blight b- bcorrect banswers✔✔How bwould byou bget bthe bbest bpicture bon ba
bmonitor?
Green bwith ba byellow bstripe b- bcorrect banswers✔✔What bis bthe bcolor bof ban
bequipment bgrounding bwire?
, 900 bOHM b- bcorrect banswers✔✔What bis bthe bminimum bresistance berror bof ba b1000
bOHM bresistor bwith ban berror bof b10%?
Fiber bOptic b- bcorrect banswers✔✔The bbest bproduct bfor ba bclosed bcircuit bsystem bis
bwith bmore bthan b7000 bwithout breamplification bis?
The bF bspeed bstop bof bthe blens b- bcorrect banswers✔✔What bis ba bcameras bsensitivity
bbased bon?
Balancing bTransformer b- bcorrect banswers✔✔How bdo byou bget brid bof bsnow bon ba
bmonitor?
Ceiling bgrid b- bcorrect banswers✔✔When bmounting ban binterior bcamera bwhich bof bthe
bfollowing bis bnot ba bsuitable blocation?
Fiber bOptic bCable b- bcorrect banswers✔✔Given: bHardwire balarm bsystem bcontrol
bpanel bshould bbe binstalled bso bthat bthey bhelp breduce bmagnetic bdowntime band bfalse
balarms, belectromagnetic binterference bmust bbe bprevented bfrom bentering bthe bsystem
bcontrol bpanel band bcausing binterference. bWhich bof bthe bfollowing beliminates bEMI?
Short bCircuit b- bcorrect banswers✔✔Which bof bthe bfollowing bshould bnot bcause ba
bswinger?
Radiated bEnergy b- bcorrect banswers✔✔When bwhite band bblack bbars bappear bon ba
bvideo bmonitor, bthis bcondition bis bknown bas bhum, bwhat bcauses bthis bcondition?
Voltage b- bcorrect banswers✔✔Which bof bthe bfollowing bfactors bwould bnot baffect bthe
btemperature bof bconductors bunder ba bfull bload?
Star, bbus, bhierrachal bARE bALL bmultipoint b- bcorrect banswers✔✔What btype bof
bnetwork bis bnot bconsidered bmultipoint?
Voltmeter b- bcorrect banswers✔✔What bdevice bis bbest bused bto btest ba bdry bcell?
Shorted b- bcorrect banswers✔✔A blength bof bCOAX bcable bused bfor bdata bis
bterminated bat bone bend bwith b50 bOHM bterminator, bthe bresistance bbetween bthe
bshield band bthe bcenter bconductor bat bthe bother bend bof bthe bcable bis b0 bOHMS; bthis
bindicated bthe bcable bcontinuity bis b_____?
Bell bCurrent bStays b- bcorrect banswers✔✔All bof bthe bfollowing bare badvantages bto
busing ba brelay bto bremote bactuate ba bsignaling bdevice bexcept?
44 b- bcorrect banswers✔✔Given: b4 bSpeakers bwired bin bseried bof b4 bOHMS, b8
bOHMS, b16 bOHMS, band b16 bOHMS, bwhat bis bthe btotal bimpedence?
Black b- bcorrect banswers✔✔The bpower bwire bfor bAC bis bdesignated bby bwhat bcolor?
