NCCCO CORE exam with correct answers
Before vleveling va vmobile vcrane von voutriggers, van voperator vshould vensure: v- vcorrect vanswerthere vis vno
vweight vof vthe vcrane vbearing von vany vtires
Operating va vmobile vcrane vwith va vlong vboom, von vuneven vground, vwhat vsupport vcondition vshould vbe
vconsidered? v- vcorrect vanswerKeeping v90 vdegree vangle vbetween vcylinder vrod vand vpad
What vis vthe vprimary vpurpose vfir va vrooster vsheave vor vauxiliary vboom vpoint vsheave? v- vcorrect
vanswerSeparate vthe vboom vhoist vlines
How vmany vrandomly vbroken vwires vin va vlay vlength vmust vthere vbe von va vmobile vcranes vhoist vline, vbefore
vit vshould vbe vremoved vfrom vservice? v- vcorrect vanswer6
On va vmobile vcrane, vhow vmany vbroken vwires vare vpermitted vat vthe vend vconnection vof va vpendent vbefore
vit vmust vbe vtaken vout vof vservice? v- vcorrect vanswer1
Type v1 vrotation vresistant vhoist vwire vrope vhas va vdesign vfactor vof: v- vcorrect vanswer5 vto v1
How vmany vrandomly vdistributed vbroken vwires vin vrotation- vresistant vhoist vwire vrope vare vconsidered vfor
vreplacement? v- vcorrect vanswer2 vbroken vwires vin v6 vrope vdiameters
The vterm vnet vcapacity vis vbest vdefined vby vwhich vof vthe vterms vlisted vbelow? v- vcorrect vanswerGross
vcapacity vminus vcapacity vdeductions
Mobile vcranes vthat vare vset vup von vbarges, vshall vhave va vlist vchart vprovided vby vwhich vof vthe ventities
vlisted vbelow? v- vcorrect vanswerManufacturer
When vlifting vloads von vtires, vmobile vcranes vare vrated vat vwhat vpercentage vof vtipping? v- vcorrect
vanswer75%
, How vdoes vthe veffective vweight vof va vslowed vextension vrelate vto vthe vactual vweight vof vthe vextension? v-
vcorrect vanswerHigher vthan vthe vactual vweight.
When vload vradius vis vbetween vradii vvalues, vthe voperator vmust vuse vthe: v- vcorrect vanswerlonger vradius
Why vshould vonly vapproved vattachments vor vextra vcounterweights vprovided vby vthe vmanufacturer vbe
vplaced von vthe vrear vof vthe vcrane? v- vcorrect vanswerThey vcould vcause va vbackward vstability vproblem.
A vmobile vcrane's vjib vis voffset v15º vversus vits voriginal v0º voffset, vbut vthe vboom vangle vremains vunchanged.
vIn vthis vsituation, vthe vload vradius: v- vcorrect vanswerincreases
Abruptly vstopping va vrapid vswing von va vlong-boom vmobile vcrane vwill vproduce vwhat vmajor veffect? v-
vcorrect vanswerCollapsing vthe vboom.
When vdetermining vthe vposition vto va vmobile vcrane vshould vbe vleft vin vover vnight, vwhen vhigh vwinds vin
vthe vforecast vthe voperator vshould: v- vcorrect vanswerFollow vthe vmanufacturers vrecommendations.
If va vmobile vcrane vis vNOT vset-up vlevel vand vthe voperator vswings vthe vload vfrom vthe vhigh vside vto vthe vlow
vside, vwhat veffect vwill vthat vhave von vthe vradius? v- vcorrect vanswerThe vradius vincrease.
Increasing vthe vdistance vfrom vthe vcrane's vcenter vof vgravity vto vthe vtipping vaxis vwill vhave vwhat veffect von
vthe vmobile vcrane? v- vcorrect vanswerDecreases vstability.
Backward vstability vof va vmobile vcrane vis vtested vin vwhich vconfiguration vlisted vbelow? v- vcorrect
vanswerBasic vboom vat vminimum vangle vwith vno vload
Deflection vof vthe vboom vwhile voperating va vmobile vcrane vwill vincrease? v- vcorrect vanswerLoad vRadius
v(Swings vout)
A vsudden vstart vor vstop vof vthe vhoisting vfunction vwhile voperating va vmobile vcrane vcan vproduce va: v-
vcorrect vanswerdynamic vload
Before vleveling va vmobile vcrane von voutriggers, van voperator vshould vensure: v- vcorrect vanswerthere vis vno
vweight vof vthe vcrane vbearing von vany vtires
Operating va vmobile vcrane vwith va vlong vboom, von vuneven vground, vwhat vsupport vcondition vshould vbe
vconsidered? v- vcorrect vanswerKeeping v90 vdegree vangle vbetween vcylinder vrod vand vpad
What vis vthe vprimary vpurpose vfir va vrooster vsheave vor vauxiliary vboom vpoint vsheave? v- vcorrect
vanswerSeparate vthe vboom vhoist vlines
How vmany vrandomly vbroken vwires vin va vlay vlength vmust vthere vbe von va vmobile vcranes vhoist vline, vbefore
vit vshould vbe vremoved vfrom vservice? v- vcorrect vanswer6
On va vmobile vcrane, vhow vmany vbroken vwires vare vpermitted vat vthe vend vconnection vof va vpendent vbefore
vit vmust vbe vtaken vout vof vservice? v- vcorrect vanswer1
Type v1 vrotation vresistant vhoist vwire vrope vhas va vdesign vfactor vof: v- vcorrect vanswer5 vto v1
How vmany vrandomly vdistributed vbroken vwires vin vrotation- vresistant vhoist vwire vrope vare vconsidered vfor
vreplacement? v- vcorrect vanswer2 vbroken vwires vin v6 vrope vdiameters
The vterm vnet vcapacity vis vbest vdefined vby vwhich vof vthe vterms vlisted vbelow? v- vcorrect vanswerGross
vcapacity vminus vcapacity vdeductions
Mobile vcranes vthat vare vset vup von vbarges, vshall vhave va vlist vchart vprovided vby vwhich vof vthe ventities
vlisted vbelow? v- vcorrect vanswerManufacturer
When vlifting vloads von vtires, vmobile vcranes vare vrated vat vwhat vpercentage vof vtipping? v- vcorrect
vanswer75%
, How vdoes vthe veffective vweight vof va vslowed vextension vrelate vto vthe vactual vweight vof vthe vextension? v-
vcorrect vanswerHigher vthan vthe vactual vweight.
When vload vradius vis vbetween vradii vvalues, vthe voperator vmust vuse vthe: v- vcorrect vanswerlonger vradius
Why vshould vonly vapproved vattachments vor vextra vcounterweights vprovided vby vthe vmanufacturer vbe
vplaced von vthe vrear vof vthe vcrane? v- vcorrect vanswerThey vcould vcause va vbackward vstability vproblem.
A vmobile vcrane's vjib vis voffset v15º vversus vits voriginal v0º voffset, vbut vthe vboom vangle vremains vunchanged.
vIn vthis vsituation, vthe vload vradius: v- vcorrect vanswerincreases
Abruptly vstopping va vrapid vswing von va vlong-boom vmobile vcrane vwill vproduce vwhat vmajor veffect? v-
vcorrect vanswerCollapsing vthe vboom.
When vdetermining vthe vposition vto va vmobile vcrane vshould vbe vleft vin vover vnight, vwhen vhigh vwinds vin
vthe vforecast vthe voperator vshould: v- vcorrect vanswerFollow vthe vmanufacturers vrecommendations.
If va vmobile vcrane vis vNOT vset-up vlevel vand vthe voperator vswings vthe vload vfrom vthe vhigh vside vto vthe vlow
vside, vwhat veffect vwill vthat vhave von vthe vradius? v- vcorrect vanswerThe vradius vincrease.
Increasing vthe vdistance vfrom vthe vcrane's vcenter vof vgravity vto vthe vtipping vaxis vwill vhave vwhat veffect von
vthe vmobile vcrane? v- vcorrect vanswerDecreases vstability.
Backward vstability vof va vmobile vcrane vis vtested vin vwhich vconfiguration vlisted vbelow? v- vcorrect
vanswerBasic vboom vat vminimum vangle vwith vno vload
Deflection vof vthe vboom vwhile voperating va vmobile vcrane vwill vincrease? v- vcorrect vanswerLoad vRadius
v(Swings vout)
A vsudden vstart vor vstop vof vthe vhoisting vfunction vwhile voperating va vmobile vcrane vcan vproduce va: v-
vcorrect vanswerdynamic vload
