NCARB Building Systems Integration 2

Question 1

What is the primary purpose of a building's vapor retarder?

Accepted Answer

To limit moisture diffusion through the building envelope

Answer

A vapor retarder resists the diffusion of water vapor through wall, roof, or floor assemblies to prevent condensation within the construction.

Question 2

Which lighting control strategy reduces energy use by automatically turning off lights when a space is unoccupied?

Accepted Answer

Occupancy Sensor Control

Answer

Occupancy sensors detect motion or presence and switch lights off after a set period of inactivity, directly reducing wasted energy.

Question 3

A building's domestic hot water recirculation loop serves what function?

Accepted Answer

Ensures hot water is immediately available at fixtures without waiting

Answer

A hot water recirculation loop continuously circulates hot water through the distribution piping so users get hot water instantly without wasting cold water.

Question 4

What is the purpose of electrical grounding in a building system?

Accepted Answer

To provide a safe path for fault currents and protect people from electric shock

Answer

Grounding connects electrical equipment to earth, giving fault currents a low-resistance path that trips breakers instead of passing through people.

Question 5

Which system provides ventilation air specifically to meet ASHRAE 62.1 minimum outdoor air requirements?

Accepted Answer

Dedicated Outdoor Air System (DOAS)

Answer

A DOAS handles only ventilation air, conditioning 100% outdoor air to meet code minimums independently of the space conditioning system.

NCARB - National Council of Architectural Registration Boards Practice Test

NCARB - National Council of Architectural Registration Boards Practice Test

NCARB Building Systems Integration 2