Fire Protection System Chp 9: Fixed Wet & Dry Chemical Quiz

After how many years should dry chemical agent in stored-pressure containers be replaced to ensure that the system is fresh and ready for operation?

6 years

When conducting discharge and acceptance tests, _______ are attached to the nozzles to capture the agent when discharged.

balloons

Which of the following has been commonly protected by fixed dry chemical extinguishing systems since the early 1950s to the current times?

energized electrical equipment self-serve fuel-pump stations

Through proper engineering of the system, the agent and expelling gas must properly mix and maintain flow balance to ensure even distribution of the agent through the system. This is called:

fluidization

The _________ is a mechanical, heat sensitive device that is used as an automatic activation device for wet or dry chemical extinguishing systems.

fusible link

Since many manufacturers do not combine the wet chemical agent and expelling gas, which of the following are used to store the expelling gas until it is needed when the system activates?

gas cartridges

Which system protects a specific area, piece of equipment, process, or operation depending on the hazard?

local application system

How often should the owner or a representative visually inspect the extinguishing system for conditions that could cause failure of, or inhibit, operation?

monthly

Which of the following is NOT a pressurized gas used as a transport medium for dry chemical extinguishing agents?

oxygen

With a(n) __________ system, the amount of suppression agent, pipe size and length, number of fittings, nozzle types, and flow rates are determined by factory and laboratory testing.

pre engineered

Dry chemical extinguishing agents are not considered to be dangerous or toxic, although _________ can occur once it is expelled from the system and becomes suspended in the air.

respiratory problems

__________ occurs when the extinguishing agent reacts with the cooking oil to form a soapy foam blanket that provides separation between oxygen and fuel.

saponification

Which system protects enclosed hazards and areas within a structure, such as in paint spray booths?

total flooding system

Which type of extinguishing system protects commercial kitchen appliances and the associated ductwork, exhaust hoods, filters, and plenum chambers?

wet chemical extinguishing system

Ammonium phosphate is _________ in color in order to differentiate it from other dry chemicals.

yellow