Pathways and Spaces Flashcards
7 cards from real DCI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Pathways and Spaces flashcards as text
What is the term for a fitting that allows a conduit to pass through a concrete floor slab while providing a finished opening?
Answer: Floor sleeve
A floor sleeve is a fitting installed in a concrete floor slab that creates a finished, firestop-able opening for conduit or cable penetrations.
According to BICSI standards, what is the recommended ratio of telecommunications rooms to floor area in a commercial building?
Answer: 1 TR per 10,000 sq ft (929 m²)
BICSI recommends one telecommunications room for every 10,000 square feet (929 m²) of usable floor space to maintain horizontal cable length limits.
Which of the following best describes a 'backbone pathway' in a structured cabling installation?
Answer: The vertical or interbuilding pathway connecting telecommunications rooms and equipment rooms
A backbone pathway connects telecommunications rooms to the main equipment room and may run vertically between floors or horizontally between buildings.
What is the minimum bend radius for a 1-inch (27mm) EMT conduit during installation?
Answer: 6 inches (152 mm)
NEC and industry standards require a minimum bend radius of 6 times the conduit's internal diameter for 1-inch EMT, which equals approximately 6 inches.
In a multi-tenant building, what type of space is used to interconnect cabling between the building entrance facility and individual tenant telecommunications rooms?
Answer: Building distributor or main cross-connect
A building distributor (main cross-connect) is the central interconnection point for backbone cabling between the entrance facility and individual floor telecommunications rooms.
What does the term 'pathway fill' refer to in cable installation?
Answer: The percentage of a pathway's cross-sectional area occupied by cables
Pathway fill refers to the percentage of a conduit's or cable tray's cross-sectional area that is occupied by cables, which must be kept within specified limits.
Which document must be obtained before cutting into a wall or floor to install a new pathway?
Answer: As-built drawings and a building permit if required
As-built drawings must be reviewed to locate hidden utilities, and a building permit may be required before cutting into structural elements to install pathways.