Mechanic Exam with correct answers

Mechanic Exam with correct answers

E=__ nn- nncorrect nnanswer-IR



P=__ nn- nncorrect nnanswer-IE



Pie nnr^2 nn= nn- nncorrect nnanswer-Area nnof nna nncircle



231 nnin^3 nn/____ nn- nncorrect nnanswer-gal.



25.4mm/__ nn- nncorrect nnanswer-in.



2.2kg/ nn- nncorrect nnanswer-lb



3 nnphase nnrectifier nnoutput nn= nn- nncorrect nnanswer-1.33 nnx nninput



single nnphase nnoutput nn= nn- nncorrect nnanswer-0.9 nnx nninput



RMS nn(effective nnvoltage) nn= nn- nncorrect nnanswer-0.707 nn(PEAK nnV)



TC nn= nn- nncorrect nnanswer-R nnx nnC nn(5)???



RPM nn= nn- nncorrect nnanswer-60 nn(frequency) nn/ nn(poles/2)



door nnoverlap nnminimum nn= nn- nncorrect nnanswer-5/8" nnmin



door nngaps nnmaximum nn= nn- nncorrect nnanswer-3/8" nnmax

, Gibs nnminimum nn= nn- nncorrect nnanswer-1/4" nnmin



Gate nnSwitch nnmaximum nn= nn- nncorrect nnanswer-2"



Passenger nnSill nnto nnSill nn____ nnto nn______" nn- nncorrect nnanswer-1/2 nnto nn1-1/2"



Platform nnLift nnSill nn____ nnto nn_____" nn- nncorrect nnanswer-3/8" nnto nn3/4"



Moving nnWalk nnmaximum nn= nn- nncorrect nnanswer-12 nndegree nnmax



Governors nn(Car nnTrip nnSpeed nn=______ nn& nnOverspeed nnSwitch nn=______) nn- nncorrect nnanswer-Car nntrip
nnspeed nn15-20% nngreater nnthan nncontract nnspeed. nn



Overspeed nnSwitch nnless nnthan nnor nnequal nnto nn90-95% nnof nntrip nnspeed



CWT nn(____%) nn- nncorrect nnanswer-Up nnto nn10% nngreater nnthan nncar nntrip nnspeed



1) nnA nncontractor nnwants nnto nnraise nnthe nncar nnspeed nnfrom nn100FPM nnto nn125FPM. nnIt nncurrently nnhas nna
nn12" nnsheave. nnWhat nnsize nnsheave nnis nnrequired? nn- nncorrect nnanswer-15"




----Diam nn= nn12, nn12"/4=3, nn25FPM=3in nn: nn100FPM nn+ nn25FPM nn= nn12"+3" nn=15"



2) nnAn nnMOV nn(metal nnoxide nnvaristor) nnburns nnout. nnYou nnshould nnreplace nnit, nnbut nncannot nnread nnthe
nnVoltage nnor nnresistance. nnWhat nnshould nnyou nndo? nn- nncorrect nnanswer-Replace nnit nnwith nna nnlarger nnMOV.

nn(630)




3) nnOn nna nnWard-Leonard nncircuit, nnthe nnbrake nnis nnset, nnbut nnthe nnmotor nnis nntrying nnto nnslip nnthrough nnthe
nnbreak. nnWhat nncircuit nnis nnthe nnissue? nn- nncorrect nnanswer-Suicide nnCircuit. nn(425)




4) nnYou nnhave nnan nnold nnDC nnmotor nnand nnyou nnare nnadding nnan nnSCR nnDrive. nnWhat nndo nnyou nndo nnwith nnthe
nninterpoles? nn- nncorrect nnanswer-Leave nnthe nninterpoles nnalone. nn(425). nn