CPD CPD Fire Protection & Suppression Systems 2

Question 1

Which NFPA standard governs standpipe systems used by firefighters inside buildings?

Accepted Answer

NFPA 14

Answer

NFPA 14, Standard for the Installation of Standpipe and Hose Systems, governs the design and installation of standpipe systems that provide water for manual firefighting operations inside buildings.

Question 2

What is a Class I standpipe system designed for?

Accepted Answer

Fire department use only, with 2.5-inch hose connections for trained firefighters

Answer

A Class I standpipe provides 2.5-inch hose connections intended for use by the fire department and trained personnel only, not untrained building occupants.

Question 3

What is the function of a fire pump in a high-rise building's sprinkler or standpipe system?

Accepted Answer

To boost water pressure when the municipal supply is insufficient to serve upper floors

Answer

A fire pump boosts pressure when the city water supply cannot provide adequate residual pressure at upper floor sprinklers or standpipe connections due to static head and friction losses.

Question 4

Per NFPA 20, what type of driver is preferred for fire pumps to ensure operation during a power failure?

Accepted Answer

Diesel engine driver or electric motor with an emergency generator backup

Answer

NFPA 20 allows electric motor–driven fire pumps but requires a reliable power source; diesel engine drivers are often preferred because they operate independently of the electrical system during power outages.

Question 5

What is the purpose of a fire suppression system's inspector's test connection?

Accepted Answer

To simulate the flow of one sprinkler head to verify alarm activation without causing a full discharge

Answer

The inspector's test connection simulates the operation of a single sprinkler head to verify that waterflow alarms and system components respond correctly without discharging water from actual sprinklers.

(CPD) Certified Plumbing Designer Practice Test

(CPD) Certified Plumbing Designer Practice Test

CPD CPD Fire Protection & Suppression Systems 2