Crane Type Identification and Applications Flashcards
7 cards from real NCCCO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Crane Type Identification and Applications flashcards as text
Which crane type is specifically engineered to pick up a load at one location and carry it to another location while traveling?
Answer: Pick-and-carry crane
Pick-and-carry cranes are designed to lift a load and transport it to a new location while driving, without outriggers, making them highly mobile on jobsites.
A ship-to-shore (STS) container crane is classified as which general crane category?
Answer: Cantilever gantry crane
STS cranes are large cantilever gantry cranes that straddle the dock and extend a cantilever boom over the ship to load and unload containers.
A boom truck differs from a hydraulic truck crane primarily in that a boom truck:
Answer: Cannot rotate 360°
Most boom trucks have limited rotation (typically 400° or less), whereas hydraulic truck cranes typically provide full 360° continuous rotation.
Which crane is most suitable for erecting precast concrete panels in a confined urban lot where surrounding buildings restrict swing radius?
Answer: Luffing jib tower crane
Luffing jib tower cranes raise and lower the jib to vary radius, minimizing the swing arc and making them ideal for congested urban sites with restricted airspace.
What is the key characteristic of a 'Derrick barge' used in offshore oil and gas construction?
Answer: It is a crane-equipped vessel used for heavy offshore lifts and pipe-laying
Derrick barges are large crane-equipped marine vessels used for heavy lifts, jacket installations, and pipe-laying in offshore oil and gas construction.
A jib crane wall-mounted in a manufacturing bay is best described as:
Answer: A slewing jib crane anchored to a wall or column with a pivoting horizontal arm
A wall-mounted jib crane consists of a horizontal arm (jib) that pivots on a mast or bracket fixed to a wall or column, covering a semicircular work area.
In which scenario would a hydraulic all-terrain crane have a significant advantage over a standard rough-terrain crane?
Answer: Traveling long distances on public highways between jobsites at highway speeds
All-terrain cranes are designed with multi-axle highway-capable carriers that allow travel at road speeds, unlike rough-terrain cranes which must be transported by lowboy.