MECHANIC TEST REVIEW EXAM WITH ALL NEEDED TO
PASS
1.What yis ythe yoverlap yminimum yon y2 yand y3 yspeed ydoors?: yhorizontal
y- y1/2" yvertical y- y1"
2.what yare ythe yminimum yand ymaximum yclearances ybetween ysill yand
ycar ydoors?: y1/4" yMinimum
3/8" yMaximum
3.What yis ythe yminimum yand ymaximum ysill yto ysill ygap?: y1/2"- y1 y1/2"
4.1 ygallon yequals yhow ymany ycubic yfeet?: y.134 ycubic yfeet
5.how ymany ygallons yare yneeded yto yrun ya yplunger y30'?: yConvert y30' yinto
yinches
= y360"
y3x3x3.14=28.26
28.26x360=10,173.6
10,173.6/231=44.04 ygallons
6.what yis ythe yconversion yfor yKg yto ypounds?: y1 yKg y= y2.205 ypounds
7.what yis ythe ypurpose yof ya ygear yreduction yunit yon ya ygeared
ymachine?: yIn- ycreased ylifting ycapacity
8.At ywhat yspeed yshould ythe yGov. yswitch ybe yset yto yopen?: yElectrical y-
y90% yof ytripping yspeed yfor y150 y-500 yfpm.
95% yfor yanything yover y500 yfpm.
1 y/
y21
,9.at ywhat ydistance yfrom yclosed ydoes ythe ygate yswitch yoperate?: y2"
10.What yare ythe ymost ycommon yfeatures yof yLoad yweigh?: yControl ythe
ygenerator yfield yand yinside yexpress yoperation
11.does ya yGFCI ywork?: yDetects yimbalance ybetween yhot yand yneutral
ywires
12.A ymotor yneeds ya ysleeve ybearing yreplaced, ywhat ytype yof ybearing ydo
yyou yneed?: yFriction yBearing
(anti-friction ybearing y= yball ybearing)
13.Using ybinary ylogic, yWhat ydip yswitches ymust ybe yon yfor ya y128 ybit y30
ysecond ytimer yat y150%?: y1,3,4,6 y= y45 yseconds
14.How ydo yyou yattach ybrackets yto ybrick?: yInserts yset yback y1/4' yinto
ythe yblock. ycode ycould ycall yfor ythrough ybolt.
15.A ycar yweighs y2500 ypounds ywith ya ycapacity yof y2500 ypounds. yThe
yCWT yis yweighted yat y40% yhow ymuch yis ythe ymotor ylifting ywhen ythe ycar yis
yfully yloaded?-
: y2500(car)+1000(40%)=3500
5000-3500=1500 ypounds ylifted yby ythe ymachine.
16.what yare ythe yconsequences yof ymisaligned yjoints yon ya yrack yand
ypinion?: y-
-Broken ygear yteeth
-CWT yderailment
-excessive ywear
-crease ythe ysurface ytube.
2 y/
y21
, 17. a y480 yvac ystep ydown y240 yvac ytransformer yis yconnected yto ya y3
yphase yrectifier, ywhat yis ythe youtput yvoltage?: y320 yvac
3 yphase yfull ywave y=1.33x youtput yvoltage
1.33 yx y240= y319.2
18.a y300 yohm yresistor yburns yout ybut yyou ydon't yhave yanother yone y, yhow
ycan yyou ymake yone?: y2 y- y600 yohm yresistors yin yparallel yis y300 yohms.
y(resistance yis yhalf yof ythe yhighest yresistor yin ya yparallel ycircuit)
3 y- y225 yohm yresistors yin yparallel yis y75 yohms
19.how yis ya yclass1 yyearly ybuffer ytest yperformed?: ycar yat ythe ybottom
ylanding yand yon yinspection. yJump yout ydirection yand yfinal ylimits. ywith
ythe ypit yclear yrun ydown yto ycompress ythe ybuffers. yThe ybuffers yshould
yfully yextend yin y90 yseconds.
(5 yyear: yfull yload, yfull
yspeed) y(CWT: yfull yspeed,
yempty)
20.you yneed yto ywork yon ya yfrieght ydoor yretiring ycam, yyou yLOTO ythe
ymainline ybut ythere yis ystill ypower yon ythe ycam. yWhat ycircuit yis ystill yhot?:
y-Door yoperator ydisconnect
-Mainline ydisconnect.
21.a ycontractor ywants yto yraise ythe ycar yspeed yfrom y100 yfpm yto y125
yfpm. yit ycurrently yhas ya y12" ysheave. yWhat ysize ysheave yis yrequired?:
yDiameter y= y12" y12/4=3" y(25 yfpm= y3")
100 yfpm y+ y25 yfpm y= y12+3 y= y15" ysheave
22.What yare yextension ytubes yused yfor?: yNecessary yclearance yfor
yplacement yof yconcrete yforms.
23.If ya yhoist ymotor yis ymaking ynoise, ywhat yis ythe yproblem?: yneeds
yinductors
24.What yis ythe yarea yof ya y10" yplunger?: yPie yx yradius ysquared y= yarea
3.14x5x5= y78.5
25.you yare ytesting yan yelevator ywith ya yrated yspeed yof y500 yfpm. yWhat yis
ythe yminimum yspeed ythe ysafeties yshould ybe yset yat?: yMechanical y: y115%
yx y500 y= y575 yfpm
Electrical: y90% yx y575 y= y517.5 yfpm
26.What yis ythe ytolerance yfor y3/8 yat y.003?:
y372-.378 ybilateral=2 ydirection yunilateral=1
ydirection
27.you yare yinstalling ythe ylimit ycam yon ythe ycar yand ynotice ythat ythe yholes
yare ynot ylining yup. yWhere ydo yyou yfind ythe ycorrect ylocation yfor ythe ycam?:
3 y/
y21
PASS
1.What yis ythe yoverlap yminimum yon y2 yand y3 yspeed ydoors?: yhorizontal
y- y1/2" yvertical y- y1"
2.what yare ythe yminimum yand ymaximum yclearances ybetween ysill yand
ycar ydoors?: y1/4" yMinimum
3/8" yMaximum
3.What yis ythe yminimum yand ymaximum ysill yto ysill ygap?: y1/2"- y1 y1/2"
4.1 ygallon yequals yhow ymany ycubic yfeet?: y.134 ycubic yfeet
5.how ymany ygallons yare yneeded yto yrun ya yplunger y30'?: yConvert y30' yinto
yinches
= y360"
y3x3x3.14=28.26
28.26x360=10,173.6
10,173.6/231=44.04 ygallons
6.what yis ythe yconversion yfor yKg yto ypounds?: y1 yKg y= y2.205 ypounds
7.what yis ythe ypurpose yof ya ygear yreduction yunit yon ya ygeared
ymachine?: yIn- ycreased ylifting ycapacity
8.At ywhat yspeed yshould ythe yGov. yswitch ybe yset yto yopen?: yElectrical y-
y90% yof ytripping yspeed yfor y150 y-500 yfpm.
95% yfor yanything yover y500 yfpm.
1 y/
y21
,9.at ywhat ydistance yfrom yclosed ydoes ythe ygate yswitch yoperate?: y2"
10.What yare ythe ymost ycommon yfeatures yof yLoad yweigh?: yControl ythe
ygenerator yfield yand yinside yexpress yoperation
11.does ya yGFCI ywork?: yDetects yimbalance ybetween yhot yand yneutral
ywires
12.A ymotor yneeds ya ysleeve ybearing yreplaced, ywhat ytype yof ybearing ydo
yyou yneed?: yFriction yBearing
(anti-friction ybearing y= yball ybearing)
13.Using ybinary ylogic, yWhat ydip yswitches ymust ybe yon yfor ya y128 ybit y30
ysecond ytimer yat y150%?: y1,3,4,6 y= y45 yseconds
14.How ydo yyou yattach ybrackets yto ybrick?: yInserts yset yback y1/4' yinto
ythe yblock. ycode ycould ycall yfor ythrough ybolt.
15.A ycar yweighs y2500 ypounds ywith ya ycapacity yof y2500 ypounds. yThe
yCWT yis yweighted yat y40% yhow ymuch yis ythe ymotor ylifting ywhen ythe ycar yis
yfully yloaded?-
: y2500(car)+1000(40%)=3500
5000-3500=1500 ypounds ylifted yby ythe ymachine.
16.what yare ythe yconsequences yof ymisaligned yjoints yon ya yrack yand
ypinion?: y-
-Broken ygear yteeth
-CWT yderailment
-excessive ywear
-crease ythe ysurface ytube.
2 y/
y21
, 17. a y480 yvac ystep ydown y240 yvac ytransformer yis yconnected yto ya y3
yphase yrectifier, ywhat yis ythe youtput yvoltage?: y320 yvac
3 yphase yfull ywave y=1.33x youtput yvoltage
1.33 yx y240= y319.2
18.a y300 yohm yresistor yburns yout ybut yyou ydon't yhave yanother yone y, yhow
ycan yyou ymake yone?: y2 y- y600 yohm yresistors yin yparallel yis y300 yohms.
y(resistance yis yhalf yof ythe yhighest yresistor yin ya yparallel ycircuit)
3 y- y225 yohm yresistors yin yparallel yis y75 yohms
19.how yis ya yclass1 yyearly ybuffer ytest yperformed?: ycar yat ythe ybottom
ylanding yand yon yinspection. yJump yout ydirection yand yfinal ylimits. ywith
ythe ypit yclear yrun ydown yto ycompress ythe ybuffers. yThe ybuffers yshould
yfully yextend yin y90 yseconds.
(5 yyear: yfull yload, yfull
yspeed) y(CWT: yfull yspeed,
yempty)
20.you yneed yto ywork yon ya yfrieght ydoor yretiring ycam, yyou yLOTO ythe
ymainline ybut ythere yis ystill ypower yon ythe ycam. yWhat ycircuit yis ystill yhot?:
y-Door yoperator ydisconnect
-Mainline ydisconnect.
21.a ycontractor ywants yto yraise ythe ycar yspeed yfrom y100 yfpm yto y125
yfpm. yit ycurrently yhas ya y12" ysheave. yWhat ysize ysheave yis yrequired?:
yDiameter y= y12" y12/4=3" y(25 yfpm= y3")
100 yfpm y+ y25 yfpm y= y12+3 y= y15" ysheave
22.What yare yextension ytubes yused yfor?: yNecessary yclearance yfor
yplacement yof yconcrete yforms.
23.If ya yhoist ymotor yis ymaking ynoise, ywhat yis ythe yproblem?: yneeds
yinductors
24.What yis ythe yarea yof ya y10" yplunger?: yPie yx yradius ysquared y= yarea
3.14x5x5= y78.5
25.you yare ytesting yan yelevator ywith ya yrated yspeed yof y500 yfpm. yWhat yis
ythe yminimum yspeed ythe ysafeties yshould ybe yset yat?: yMechanical y: y115%
yx y500 y= y575 yfpm
Electrical: y90% yx y575 y= y517.5 yfpm
26.What yis ythe ytolerance yfor y3/8 yat y.003?:
y372-.378 ybilateral=2 ydirection yunilateral=1
ydirection
27.you yare yinstalling ythe ylimit ycam yon ythe ycar yand ynotice ythat ythe yholes
yare ynot ylining yup. yWhere ydo yyou yfind ythe ycorrect ylocation yfor ythe ycam?:
3 y/
y21
