Architecture Building Systems (MEP) 2

Question 1

What is a 'variable air volume' (VAV) HVAC system?

Accepted Answer

A system that varies the quantity of conditioned air delivered to zones to match thermal loads

Answer

VAV systems modulate the volume of conditioned air delivered to each zone in response to local thermostat demand, saving energy compared to constant-volume systems.

Question 2

What is the purpose of 'grounding' in an electrical system?

Accepted Answer

To provide a safe, low-resistance path for fault current to trip protective devices and prevent shock

Answer

Electrical grounding creates a low-impedance fault current path that causes circuit breakers or fuses to trip quickly, protecting people and equipment from shock and fire.

Question 3

What does a 'building automation system' (BAS) primarily do?

Accepted Answer

Monitors and controls building mechanical, electrical, and lighting systems from a central platform

Answer

A BAS (also called BMS or EMS) integrates control of HVAC, lighting, fire, and other systems to optimize building performance, energy use, and occupant comfort from a central interface.

Question 4

Which type of fire suppression system is most appropriate in a computer server room where water damage is a concern?

Accepted Answer

Clean agent gaseous suppression system

Answer

Clean agent systems discharge electrically non-conductive gas (such as FM-200 or Inergen) that suppresses fire without leaving residue or damaging sensitive electronic equipment.

Question 5

What is the purpose of a 'pressure-reducing valve' (PRV) in a building's water supply system?

Accepted Answer

To reduce incoming street pressure to a safe, usable range within the building

Answer

PRVs reduce potentially excessive street pressure (often 80–150 psi) to the recommended 40–80 psi range suitable for building fixtures and piping.

Architecture Practice Test

Architecture Practice Test

Architecture Building Systems (MEP) 2