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Elevator mechanics review questions with complete solutions
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Elevator mechanics review questions withcomplete solutions
Car nnrunning nnup nnkeep nnstopping nnwhy? nn- nncorrect nnanswer-Contact nnis nnnot nndeenergizing nnin nnpush
nnbutton
Third-floor nnbulbs nnburn nnout nnwhy? nn- nncorrect nnanswer-Shorted nnresistor
Car nnwill nnnot nntravel nnto nnsecond nnfloor nnwithout nna nnthird-floor nnme nna nncall nnand nnwill nnnot nngo nndown
nnfrom nnthree nnwithout nna nnsecond-floor nnhall, nnwhat's nnthe nnproblem? nn- nncorrect nnanswer-2Fl nn4/6
Why nnwon't nnmotor nnstart? nn- nncorrect nnanswer-MOL1 nn95/96
Car nndoors nnclosed nnand nnwon't nnrun nnwhat nndo nnyou nncheck? nn- nncorrect nnanswer-Check nnfor nnvoltage nnat
nnfour nnand nnfive
Bad nnTransistor
Top nnbarricade nncan nnbe nnreplaced nnwith? nn- nncorrect nnanswer-1/4" nnCable
There nnis nnvoltage nnat nnthe nnswitch nnbut nnnone nnat nnpoint nna nnwhat's nnwrong? nn- nncorrect nnanswer-Either nnR1
nnor nnR2 nnopen
The nndoor nnclose nnlimit nnswitch nnis nnnot nnworking nndo nnyou nnhave nnpower nnfrom nn35 nnto nnterm nneight. nnNo
nnpower nnfrom nn1 nnto nn52 nnwhy? nn- nncorrect nnanswer-Door nnlimit nnswitch nnmalfunction
Car nnrunning nnnormally nnbut nnthe nnbuzzer nnwill nnnot nnshut nnoff nnwhy? nn- nncorrect nnanswer-EHP nn2/3
nnshorted
Relay nnSTR nnhas nnvoltage. nnTRU nnhas nnvoltage, nnRU nnhas nnno nnvoltage, nnwhy? nn- nncorrect nnanswer-TRU nn9/8
, Second nnfloor nnPI nnilluminates nnthen nnquickly nnextinguishes nnwhy? nn- nncorrect nnanswer-X1 nn4/6
On nna nnmachine, nnwhat nnis nndrilled nnout nnfirst? nn- nncorrect nnanswer-Secondary nnsheave
Dumb nnwaiter nntakes nnoff nnbefore nnloading nnwhy? nn- nncorrect nnanswer-Non nninterference
Car nnlevels nnin nn3 nninches nnhigh nnin nndown nndirection nnwhy? nn- nncorrect nnanswer-Counterweight
In nnbi-parting nndoors nnwhat nngap nnis nnallowed nnbefore nngate nnswitch nnis nnopen? nn- nncorrect nnanswer-3/4"
Pressure nnswitch nnis nnwired nnin nnwhat nndirection nn- nncorrect nnanswer-Down nndirectional
What nnis nnthe nntripping nnspeed nnof nncounterweight nngovernor? nn- nncorrect nnanswer-No nnmore nnthan nn10%
nnhigher
There nnis nnexcessive nnsparking nnon nngenerator nnwhy? nn- nncorrect nnanswer-High nnMicha
How nndoes nninterpoles nnaffect nnthe nnArmature? nn- nncorrect nnanswer-Reaction
What nnis nnthe nnmaximum nndoor nnclosing nnforce? nn- nncorrect nnanswer-30 nnlbs nnand nn7 nnlbs nnkinetic
What nndo nnyou nndo nnbefore nnreplacing nna nnrelay nnon nna nncontroller? nn- nncorrect nnanswer-LOTO, nnTest, nnand
nnVerify
When nnare nnspring nnbuffers nnused? nn- nncorrect nnanswer-Less nnthan nn200fpm
What nnare nnSCR's nngood nnfor? nn- nncorrect nnanswer-They nnare nnquieter nnand nnmake nnless nnvibration nnthen
nnmotor nngenerator nnset
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