RAFF Exit Exam • Set 1 Question 8 of 30
Low expansion foam ratio
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Direct Answer
Option D: None of the above
Low expansion foam typically has an expansion ratio of up to 20:1 (e.g., 1 part foam concentrate to 19 parts water). Ratios like 1:100 are medium expansion, and 0.736111111 is not a standard ratio. (FSS Code Ch. 5)
All Options
A
0.736111111
B
01:100
C
01:20
D
None of the above
(Correct Answer)
Detailed Explanation & Context
Low expansion foam typically has an expansion ratio of up to 20:1 (e.g., 1 part foam concentrate to 19 parts water). Ratios like 1:100 are medium expansion, and 0.736111111 is not a standard ratio. (FSS Code Ch. 5)
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Advanced Fire Fighting (RAFF).
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