BIGF Exit Exam • Set 7 Question 13 of 30
_________ is the range of gas concentrations in air between which the mixture is flammable.
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Direct Answer
Option B: Flammable range
The flammable range (or explosive range) is the range of fuel gas concentrations in air (between LEL and UEL) within which combustion can occur upon ignition.
All Options
A
Inflammable range
B
Flammable range
(Correct Answer)
C
Pressure range
D
Temperature range
Detailed Explanation & Context
The flammable range (or explosive range) is the range of fuel gas concentrations in air (between LEL and UEL) within which combustion can occur upon ignition.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Basic Training for Ships subject to the IGF Code (BIGF).
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