NCCCO CORE QUESTIONS AND ANSWERS

NCCCO CORE QUESTIONS AND ANSWERS

Before,leveling,a,mobile,crane,on,outriggers,,an,operator,should,ensure:,-

,ANSWER,there,is,no,weight,of,the,crane,bearing,on,any,tires

Operating,a,mobile,crane,with,a,long,boom,,on,uneven,ground,,what,support,condition,should,b e,considered?,-,ANSWER,Keeping,90,degree,angle,between,cylinder,rod,and,pad

What,is,the,primary,purpose,fir,a,rooster,sheave,or,auxiliary,boom,point,sheave?,- ,ANSWER,Separate,the,boom,hoist,lines

How,many,randomly,broken,wires,in,a,lay,length,must,there,be,on,a,mobile,cranes,hoist,line,,bef ore,it,should,be,removed,from,service?,-,ANSWER,6

On,a,mobile,crane,,how,many,broken,wires,are,permitted,at,the,end,connection,of,a,pendent,be fore,it,must,be,taken,out,of,service?,-,ANSWER,1

Type,1,rotation,resistant,hoist,wire,rope,has,a,design,factor,of:,-,ANSWER,5,to,1

How,many,randomly,distributed,broken,wires,in,rotation- ,resistant,hoist,wire,rope,are,considered,for,replacement?,- ,ANSWER,2,broken,wires,in,6,rope,diameters

The,term,net,capacity,is,best,defined,by,which,of,the,terms,listed,below?,- ,ANSWER,Gross,capacity,minus,capacity,deductions

Mobile,cranes,that,are,set,up,on,barges,,shall,have,a,list,chart,provided,by,which,of,the,entities,li sted,below?,-,ANSWER,Manufacturer

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When,lifting,loads,on,tires,,mobile,cranes,are,rated,at,what,percentage,of,tipping?,-

,ANSWER,75%

How,does,the,effective,weight,of,a,slowed,extension,relate,to,the,actual,weight,of,the,extension ?,-,ANSWER,Higher,than,the,actual,weight.

When,load,radius,is,between,radii,values,,the,operator,must,use,the:,-,ANSWER,longer,radius

Why,should,only,approved,attachments,or,extra,counterweights,provided,by,the,manufacturer,b e,placed,on,the,rear,of,the,crane?,-,ANSWER,They,could,cause,a,backward,stability,problem.

A,mobile,crane's,jib,is,offset,15º,versus,its,original,0º,offset,,but,the,boom,angle,remains,unchan

ged.,In,this,situation,,the,load,radius:,-,ANSWER,increases

Abruptly,stopping,a,rapid,swing,on,a,long-boom,mobile,crane,will,produce,what,major,effect?,- ,ANSWER,Collapsing,the,boom.

When,determining,the,position,to,a,mobile,crane,should,be,left,in,over,night,,when,high,winds,i n,the,forecast,the,operator,should:,-,ANSWER,Follow,the,manufacturers,recommendations.

If,a,mobile,crane,is,NOT,set- up,level,and,the,operator,swings,the,load,from,the,high,side,to,the,low,side,,what,effect,will,that ,have,on,the,radius?,-,ANSWER,The,radius,increase.

Increasing,the,distance,from,the,crane's,center,of,gravity,to,the,tipping,axis,will,have,what,effect ,on,the,mobile,crane?,-,ANSWER,Decreases,stability.

Backward,stability,of,a,mobile,crane,is,tested,in,which,configuration,listed,below?,- ,ANSWER,Basic,boom,at,minimum,angle,with,no,load

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