NCCCO Core Exam Outline

NCCCO Core Exam Outline

Timber or steel - These materials should be used when setting up on soft surfaces such as soft ground, asphalt or backfilled material

Over the corner - On crawler cranes, which boom position creates the greatest ground pressure

Blocking - Allows the weight of the crane and load to be distributed over a greater surface area. Should be used under outrigger floats at all times.

• - Blocking should be at least how many times the surface area of the float

Energized - Overhead power lines must be considered to be in this condition until electrical authorities indicate otherwise

Prohibited zone - No part of the crane or load must ever enter this area around an energized power line

kV - The prohibited zone must be enlarged as this increases

20 foot - What minimum distance does OSHA require be maintained when voltage up to 350 kV is unknown

50 foot - What minimum distance is required if the voltage is over 350 kV and unknown

Qualified signal person - This person must be appointed any time the crane is working within a boom's length of the prohibited zone

Tag lines - The use of these should be avoided when lifting near power lines, however if necessary should be non-conductive type

Above power lines - Avoid operating cranes or handling materials in this area of power lines

Remain in the cab - What does an operator do if the crane comes in contact with a power line

Jump - If it is necessary to leave the crane cab before power lines are de-energized after contact, how does the operator exit the cab

transmission towers - A crane can also become electrically charged when working close to these (radio, microwave, cell)

Manufacturer - Before traveling on site with a load, be sure that this is allowed by the 1 / 2

Backward collapse - Ensure the boom low enough when traveling with a load to avoid the possibility of this

Toward the load - Always travel in this direction when traveling with a load

Boom extension, jib, or pinned section - Most manufacturers do not permit travel with a load when the boom is in these settings

Raised - To prevent a lattice boom crane from tipping forward, the boom should be in this position before traveling down an incline

Lowered - To prevent a lattice boom crane from tipping backwards, the boom should be in this position when traveling up an incline

Controlling entity - Responsible for seeing that the ground conditions are adequate to support the equipment.

Controlling entity - Responsible for informing the user and the operator of the equipment of the location of hazards beneath the equipment set-up area (such as voids, tanks, utilities)

Controlling entity - Responsible for establishing a system to coordinate the operations of two cranes that operate within each other's working radius

Key items of inspection - hoist rope & reeving, op aids & safety devices, cab windows/equipment, hooks & latches, fluid levels (crankcase oil, coolant, hydraulic oil, etc.), elec equipment, leveling device, control & drive mechanisms, fire extinguisher, air/hydraulic system

Access to job site - firm & reasonably level surface, no buried pipes, utilities, sewers, tanks, etc.

Leveling the crane - Important to accomplish when setting up a crane on a grade

1% - Load chart capacities are based on the crane being level within this percentage

carpenter's level - Use this tool placed under or close to the boom foot for an accurate measure of level

90 degrees - Swing the boom to this degree over the side and check for level again

Center of gravity - the point where the entire weight of a body can be considered concentrated so that, if supported at this point, the body would remain in equilibrium in any position

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