CDCP Fire Protection and Safety 5

Question 1

Which NFPA standard specifically addresses the fire protection of telecommunications facilities and data centres?

Accepted Answer

NFPA 75

Answer

NFPA 75 is the Standard for the Fire Protection of Information Technology Equipment and directly governs data centre fire protection requirements.

Question 2

What is the minimum required fire resistance rating for walls separating an IT equipment room from other occupancies according to NFPA 75?

Accepted Answer

1 hour

Answer

NFPA 75 requires a minimum 1-hour fire resistance rating for walls separating IT equipment rooms from adjacent occupancies.

Question 3

A technician uses a portable CO2 extinguisher on an electrical fire in a server rack. What is a key safety concern specific to CO2 use in enclosed spaces?

Accepted Answer

CO2 displaces oxygen, creating an asphyxiation hazard for personnel

Answer

CO2 suppresses fire by displacing oxygen, which poses a serious asphyxiation risk to personnel in confined or enclosed spaces.

Question 4

During a fire suppression system inspection, the inspector finds that the agent cylinder pressure is 10% below the nameplate pressure. What should the data centre operator do?

Accepted Answer

Tag the cylinder out of service and arrange for recharging or replacement

Answer

A pressure variance exceeding acceptable limits (typically ±5%) means the cylinder must be taken out of service for recharging or replacement to ensure system effectiveness.

Question 5

What is 'fire load' in the context of data centre fire risk assessment?

Accepted Answer

The total amount of combustible material in a space, expressed in energy per unit area

Answer

Fire load is the total combustible energy content per unit area (kJ/m² or BTU/ft²), used to assess potential fire severity in a space.

CDCP - Certified Data Centre Professional Practice Test

CDCP - Certified Data Centre Professional Practice Test

CDCP Fire Protection and Safety 5