What should be identified when casting concrete floors into place on the upper levels of a building or placing precast floors into position with a crane?

• Potential electrical hazards

• Safety hazards

• Weather conditions

• Time constraints

Which regulations should be reviewed related to working from elevations?

• FDA regulations

• OSHA regulations

• EPA guidelines

• FCC rules

What is the structural framework for large buildings usually constructed with?

• Plastic

• Concrete

• Steel

• Wood

What are the floors in large buildings commonly made of?

• Concrete

• Wood

• Metal

• Fiberglass

Before the concrete is placed, what provisions must be made?

• Electrical, plumbing, and data-cabling pathways

• Decoration, painting, and lighting fixtures

• Insulation, heating, and cooling systems

• Windows, doors, and roofing

For which levels may floors be precast and placed into position using a crane?

• Upper

• Lower

• Middle

• All

What is the purpose of concrete floors as depicted in the diagram?

• To support electrical fixtures only

• To provide channels through which cabling can be run

• To enhance the aesthetic appeal of the building

• To serve as the primary foundation for buildings

What type of systems are used in some installations to provide horizontal distribution of cables in underfloor duct systems?

• Cooling systems

• Heating systems

• Electrical systems

• Ventilation systems

What are vertical access ports used for in underfloor duct systems?

• To allow easy maintenance

• To enable secure locking

• To facilitate cable fishing at various locations

• To provide ventilation

What is the purpose of metal troughs in underfloor duct systems?

• To conduct electricity

• To support structural integrity

• To serve as feeder ducts for power and telecommunication lines

• To prevent water ingress