8 Terms
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Heavy & civil
Industry: Construction
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Heavy & civil
Cherry picker
Construction; Heavy & civil
A small derrick made up of a sheave on an A-frame, a winch and a winch line, and a hook, or a hydraulically operated robotic arm with man basket. Usually mount-ed on a truck.
Collaring
Construction; Heavy & civil
Collaring is a procedure used to start a new drill hole. The hole is drilled to a preferred depth at slow speed to minimise material breakout and fall-in.
Chock
Construction; Heavy & civil
A block used under and against an object to prevent it from rolling or sliding.
Choker
Construction; Heavy & civil
A chain or cable so fastened that it tightens on its load as it is pulled.
Centre line
Construction; Heavy & civil
A line marked in a roadway to indicate the centre axis of the road.
