← MeoMock / Written exams
Class 4 (4th Engineer) SSEP 📅 Aug 2022

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)

Exam question diagram

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:

Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.

View plans Browse library

← Browse more questions

Prepare on Android — MeoMock on Google Play