Simpsonville Fire & Rescue

Fire glossary

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13 entries in the Fire glossary beginning with "M"

Mass casualty incident (MCI)

Any incident that produces a large number of injured persons requiring emergency medical treatment and transportation to a medical facility. The exact number of patients that makes an incident mass casualty" is defined by departmental procedures and may vary from area to area.

Master box

An alarm system in which a local fire-alarm system triggers a fire alarm box (the master box) to signal the fire condition to a central monitor.

Master stream

A large nozzle, either portable or fixed to a pumper, capable of throwing large amounts of water relatively long distances.

Mattydale

A volunteer fire department, located north of Syracuse, NY, credited with the invention of the Mattydale Lay. The Mattydale Lay is often simply referred to as a "Mattydale" or (now) a "Cross Lay". The engine on which the Mattydale was invented and installed is currently on display at the FASNY museum

Mattydale Lay (Mattydale Load)

The concept of storing preconnected Attack Lines on an engine, as well as storing them such that they are presented at the sides of the apparatus instead of the rear. Commonly called a Cross Lay, the technique allows for rapid deployment of attack lines from either side of the apparatus.

McLeod

Hand tool used in fireline construction, consisting of a combination rake and hoe.

Means of egress

The way out of a building during an emergency; may be by door, window, hallway, or exterior fire escape; local fire codes will often dictate the size. location and type according to the number of occupants and the type of occupancy.

Medium-diameter hose

A hose with diameter between 2 1/2 and 4 inches.

Mop-up

Extinguishing or removing burning material near control lines, felling snags, and trenching logs to prevent rolling after an area has burned, to make a fire safe, or to reduce residual smoke.

Multigas detector

Measuring device designed to indicate concentrations of four selected gases, such as oxygen, carbon monoxide, volatile organic compounds, hydrogen cyanide, etc.

Multiple alarms

A request by an incident commander for additional personnel and apparatus. Each department will vary on the number of apparatus and personnel on each additional alarm.

Mutual aid

An agreement between nearby fire companies to assist each other during emergencies by responding with available manpower and apparatus.

Mutual aid

Cross-jurisdictional assistance with emergency services by pre-arranged agreement.

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13 entries in the Fire glossary beginning with "M"

News headlines

We Are Hiring!

Thursday, September 22nd, 2022

Simpsonville Fire and Rescue is currently accepting applications for full time firefighters. Please click on the media section then click on files to download an application.

Coronavirus Disease

Wednesday, March 4th, 2020