Building Systems Integration Flashcards

What type of electrical system allows a building to continue operating critical loads during a utility power outage?

Answer: Emergency Generator with Automatic Transfer Switch

An emergency generator paired with an automatic transfer switch detects utility failure and seamlessly powers critical circuits within seconds.

Which plumbing fixture requires a backflow preventer to protect the potable water supply?

Answer: Irrigation hose bib

Hose bibs connected to irrigation systems require backflow preventers because a hose submerged in contaminated water can siphon pollutants into the potable supply.

What is 'thermal bridging' in a building assembly?

Answer: Heat transfer through a highly conductive element that bypasses insulation

Thermal bridging occurs when conductive materials like metal studs or concrete bypass insulation layers, significantly reducing the assembly's effective R-value.

Which code standard governs minimum energy performance requirements for commercial buildings in the US?

Answer: ASHRAE 90.1

ASHRAE 90.1 sets minimum energy efficiency standards for commercial buildings and is widely adopted by jurisdictions and referenced by the International Energy Conservation Code.

A fire alarm system's 'initiating device' serves what function?

Answer: Detects a fire condition and sends a signal to the control panel

Initiating devices such as smoke detectors, heat detectors, and pull stations detect fire conditions and transmit signals to the fire alarm control panel.

What does a building's 'dew point' condition within a wall assembly indicate?

Answer: The location within the assembly where water vapor will condense to liquid

When warm moist air traveling through a wall assembly reaches the dew point temperature, vapor condenses into liquid water, risking moisture damage and mold.