Concerning the illustrated fire detection...

🔍 Key Concepts

• Review how series vs parallel connections look on a schematic (one continuous path vs branches from a common pair of buses). • Look closely at how the different zones connect to the fire locating switches and ground locating switches on the left side of the drawing. • Notice which components are common to all zones and which are unique to each zone; this will tell you whether zones share the same current path or just share connection points.

💭 Think About

• Trace one zone’s wiring from the terminals at the bottom left up to the locating switches. Then compare that path with a second zone: do they share the exact same current path or only the same switch contacts? • Ask yourself: if one zone went open‑circuit, would that necessarily break the circuit for the other zones as well? Your answer to that points directly to series vs parallel. • When you operate a locating switch (fire or ground), does it select just one zone at a time or does it depend on all zones being intact to work? Think what that implies about how the zones are tied together.

✅ Before You Answer

• Verify whether each zone has its own pair of wires that all meet at a common bus at the locating switches (a sign of a parallel connection). • Check if current for one zone must pass through another zone’s wiring or device in order to return to the panel (a sign of a series connection). • Confirm whether both the fire locating switches and the ground locating switches are used to interconnect the zones, or if one set only taps into each zone without making them share a single current path.

Concerning the illustrated fire detection and alarm system, what statement is true concerning the wiring between zones? Illustration EL-0114

The zones are all connected in series by means of the ground locating switches only.

The zones are all connected in series by means of the fire locating switches and the ground locating switches.

The zones are all connected in parallel by means of the fire locating switches and the ground locating switches.

The zones are all connected in series by means of the fire locating switches only.

🔍 Key Concepts

💭 Think About

✅ Before You Answer