NCARB Building Systems Integration

Question 1

Which HVAC system uses a single duct at a constant volume to condition all zones in a building?

Accepted Answer

Single-Zone Constant Air Volume (CAV)

Answer

Variable Air Volume (VAV)

Answer

Fan Coil Unit System

Answer

Chilled Beam System

Question 2

In plumbing design, what is the purpose of a P-trap?

Accepted Answer

To maintain a water seal that prevents sewer gases from entering the building

Answer

To increase water pressure

Answer

To filter debris from the drain line

Answer

To measure flow rate

Question 3

Which electrical panel component protects circuits from overloads and short circuits?

Accepted Answer

Circuit Breaker

Answer

Transformer

Answer

Busbar

Answer

Meter Socket

Question 4

What does the term 'R-value' measure in building assemblies?

Accepted Answer

Thermal resistance of a material

Answer

Air infiltration rate

Answer

Solar heat gain coefficient

Answer

Vapor permeance

Question 5

Which fire suppression system is most appropriate for a computer server room?

Accepted Answer

Clean Agent Suppression System

Answer

Wet Pipe Sprinkler System

Answer

Deluge System

Answer

Dry Pipe Sprinkler System

Question 6

In a Variable Air Volume (VAV) HVAC system, how is thermal comfort controlled in individual zones?

Accepted Answer

By modulating the volume of conditioned air supplied to each zone

Answer

By changing the temperature of the supply air

Answer

By cycling the air handler on and off

Answer

By adjusting chilled water flow centrally