Exam Question
(i) Sketch and describe a Dry Chemical Powder Fire Extinguisher (10)
(ii) What is the range of a Foam Fire Extinguisher? (2)
(ii) What different types of Fire Fighting Foam are there? (4)
Class 4 (4th Engineer)
SSEP
📅 Aug 2022
Reference Answer
### (i) Dry Chemical Powder (DCP) Fire Extinguisher
A Dry Chemical Powder (DCP) extinguisher is a versatile firefighting appliance effective against Class B, C, and sometimes A fires, depending on the chemical used. Its primary extinguishing mechanism is the inhibition of the chemical chain reaction of combustion.
#### Construction
A DCP extinguisher consists of the following key components:
A Dry Chemical Powder (DCP) extinguisher is a versatile firefighting appliance effective against Class B, C, and sometimes A fires, depending on the chemical used. Its primary extinguishing mechanism is the inhibition of the chemical chain reaction of combustion.
#### Construction
A DCP extinguisher consists of the following key components:
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