F80 Water Supply and Fire Suppression 2

Question 1

A Class I standpipe system is designed for use by whom?

Accepted Answer

Trained fire department personnel only

Answer

Building occupants without fire training

Answer

Both occupants and firefighters equally

Answer

Automatic suppression systems only

Question 2

What is the minimum residual pressure generally required at the most remote fire hydrant during fire flow conditions per NFPA standards?

Accepted Answer

20 psi

Answer

10 psi

Answer

50 psi

Answer

100 psi

Question 3

Which suppression agent is most effective on Class B (flammable liquid) fires?

Accepted Answer

CO2 or dry chemical agent

Answer

Plain water stream

Answer

Wet chemical agent

Answer

Water mist applied directly to the liquid surface

Question 4

What happens when a deluge sprinkler system activates?

Accepted Answer

Water discharges simultaneously from all open sprinkler heads throughout the protected area

Answer

Only the sprinkler head nearest the fire opens

Answer

An alarm sounds but water release is delayed 60 seconds

Answer

Only pre-selected heads activate based on zone detection

Question 5

What is the typical operating pressure range for a standard fire sprinkler head to achieve its design spray pattern?

Accepted Answer

15–25 psi

Answer

7–10 psi

Answer

50–75 psi

Answer

100–150 psi

Question 6

How does a wet pipe sprinkler system differ from a dry pipe system?

Accepted Answer

Wet pipe systems have water continuously pressurized in the piping for immediate discharge

Answer

Wet pipe systems use foam instead of water

Answer

Wet pipe systems activate only upon manual command

Answer

Wet pipe systems are installed exclusively in outdoor applications