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Questions and Answers
Cranes and derricks installed on floating surfaces must have a ____ placed where it can be easily seen by the proctors.
boom angle indicator
When is it acceptable to use a personnel platform to raise and lower workers?
Other means of access would be more dangerous or impossible.
Which of the following is an example of conditions that may limit the load rating of a crane?
The ____ oversees and directs all crane assembly and disassembly operations.
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Which of the following could cause a crane to topple even when lifting loads within its maximum range?
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____ are the wheels on a crane with open grooves that ropes or cables fit around.
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_____ refers to the point in an object around which its weight is evenly distributed.
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When must a signal person be used?
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A ____ provides something to hold onto should a personnel platform shift unexpectedly.
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Study Notes
Cranes and Derricks
- Boom angle indicator must be clearly visible to proctors on cranes and derricks installed on floating surfaces.
- Personnel platforms may be used to raise/lower workers when other access methods are deemed more dangerous or impossible.
Load Ratings and Conditions
- Cranes may have limited load ratings due to being on uneven or non-level ground.
- Inadequate ground conditions can lead to crane toppling even if loads are within maximum range.
Safety and Oversight
- An assembly/disassembly director is responsible for overseeing all crane assembly and disassembly operations.
- A signal person is required when the crane operator’s view is obstructed to ensure safety during operations.
Crane Components
- Sheaves are the wheels on a crane that have open grooves for ropes or cables.
- The center of gravity is the point where an object's weight is evenly distributed, vital for safe lifting.
Safety Features
- A grab-rail is essential on personnel platforms to provide support in the event of unexpected shifts.
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Description
Test your knowledge on cranes, derricks, hoists, elevators, and conveyors with this quiz. Explore essential safety guidelines and definitions related to these equipment. Perfect for students or professionals in the construction or equipment operation field.
