Calculate the volume of concrete required for given rectangular and cylindrical shapes.
Rigging Equipment
Identify common rigging hardware and equipment and describe its use.
Perform a safety inspection of common rigging hardware and equipment.
Describe common slings and determine sling capacities for given scenarios, using angle measurements and a load factor chart.
Select, inspect, use, and maintain special rigging equipment, including block and tackle (bull rigging), chain hoists, ratchet-lever hoists, jacks, and base-mounted drum hoists (tuggers).
Describe types of knots used in rigging and explain when each should be used.
Select and tie knots in rigging devices.
Rigging Practices
Identify and use hand signals to guide a crane operator.
Identify site and environmental hazards associated with rigging.
Examples: utility poles, bridges, buildings, underground utilities; wind, rain
Determine the center of gravity for a symmetric object and an asymmetric object, using the center of gravity formula CoG = $(sum^{D*W})/sum^W$.
Explain the importance of positioning the center of gravity under the suspension point.
Identify the pinch points of a load and explain how to avoid them.
Attach rigging hardware for routine lifts and pipe lifts and identify the components of a lift plan.
Calculate load factor (LAF) for equidistant attachment points in the same horizontal plane using the load factor equation L (leg length) $div$ H (headroom) = LAF.
Determine the share of the load (SOL) for the individual sling legs of equal length using the equation Load weight $div$ number of legs = share of the load (SOL).
Calculate sling tension using the equation LAF $ imes$ SOL = Tension.
Site Layout
Describe differential leveling (differences in elevation) between two or more points on a surface.
Reinforcing Concrete
Research and share information on the selection and uses of different types of materials for reinforcing concrete.
Trenching and Excavating
List safety precautions for digging and working around trenches and excavations.
Slab-on-Grade Foundations
Describe basic site layout tools and methods for a slab-on-grade foundation.
Vertical Formwork
Describe construction methods for types of forming and form hardware systems for walls, columns, and stairs, as well as slip forms, climbing forms, and shaft forms.
Horizontal Formwork
Describe elevated decks and formwork systems and the methods used in their construction.
Handling and Placing Concrete
Demonstrate the use of tools, equipment, and procedures for handling, placing, and finishing concrete.
Basic Stair Layout
Research and report on the various types of stairs and the common building code requirements related to stairs.
Industrial Site Layout, Formwork, and Concrete
