F80 Water Supply and Fire Suppression 3

Question 1

What type of foam agent is required for polar solvent (alcohol-based) fires where regular AFFF fails?

Accepted Answer

Alcohol-resistant AFFF (AR-AFFF)

Answer

Standard AFFF (aqueous film-forming foam)

Answer

Class A compressed-air foam

Answer

High-expansion protein foam

Question 2

What is the primary function of a fire pump in a suppression system?

Accepted Answer

To boost water pressure and flow rate when municipal supply is insufficient to meet system demand

Answer

To drain water from a flooded structure after fire suppression

Answer

To cool sprinkler heads during acceptance testing

Answer

To pressurize the building fire alarm notification circuit

Question 3

According to NFPA 291, which hydrant bonnet color indicates a flow capacity between 500 and 999 GPM?

Accepted Answer

Green

Answer

Blue

Answer

Orange

Answer

Red

Question 4

What minimum clear space must be maintained around a fire hydrant per NFPA 1?

Accepted Answer

3 feet in all directions

Answer

1 foot in all directions

Answer

2 feet in all directions

Answer

5 feet in all directions

Question 5

What is the purpose of a pressure-reducing valve (PRV) at a standpipe hose connection?

Accepted Answer

To limit excessive outlet pressure so hose lines remain manageable for firefighters

Answer

To increase pressure for upper floor connections

Answer

To measure the volumetric flow rate at each connection

Answer

To prevent backflow from the standpipe into the municipal water supply

Question 6

Which sprinkler system type uses both an electronic detection system AND a fusible sprinkler head before water releases, providing double interlock protection?

Accepted Answer

Double-interlock pre-action system

Answer

Wet pipe system

Answer

Dry pipe system

Answer

Deluge system