What is a disadvantage of multi class dry chemical fire extinguishers? Thoughtless use may lead to the powder causing more damage than the fire itself, using dry powder fire extinguishers in kitchens or offices as powder can contaminate food and inhibit the use of electrical components such as keyboards if discharged.
What are the advantages and disadvantages of ABC, dry chemical fire extinguishers? The multi-purpose chemical, monoammonium phosphate, is corrosive and damages computers and electronic equipment. The corrosive …
What is a disadvantage of multi class dry chemical fire …
Fire codes require fire extinguishers in all commercial occupancies and all multi-dwelling structures, whether or not there are other suppression systems. Disadvantages of multi user operating system?
Cons. Can be messy, as it’s a fine powder. Clean up can be costly and time-consuming, so consideration should be given where misuse/accidental use would be an issue. Reduces visibility when discharged, so consideration …
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What are the advantages and disadvantages of dry chemical fire extinguishers?
What are the advantages and disadvantages of ABC, dry chemical fire extinguishers? The multi-purpose chemical, monoammonium phosphate, is corrosive and damages computers and electronic equipment. The corrosive action may be slow and not evident for several months.
What types of fires can be extinguished with multi-purpose chemical extinguishers?
What types of fires can be extinguished with multi-purpose, dry chemical extinguishers? Class A fires which involve "ordinary combustibles" such as wood, paper, cloth, rubber and many plastics. Class B fires which involve flammable liquids, oils, greases, tars, oil-based paints and flammable gases.
What are the pros and cons of powder extinguishers?
Not as susceptible to frost as water-based extinguishers. Very effective for burning and free-flowing liquids. When powder is applied to hot smouldering surfaces, the particles fuse together and swell. This forms a barrier which excludes oxygen and prevents reigniting. Can be messy, as it’s a fine powder.
What are the pros and cons of a foam fire extinguisher?
Pros Higher A rating than water, so more effective on combustible solids. For example, a 6lt Foam has the extinguishing capability of a 9lt Water. Foam discharge is easier to clean up than powder.
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TYPES OF FIRE AND FIRE EXTINGUISHERS | WHICH FIRE EXTINGUISHER TO BE USED ON WHICH CLASSES OF FIRE Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher