APC Exam DU0-001 Topic 1 Question 112 Discussion

Actual exam question for APC's DU0-001 exam

Question #: 112
Topic #: 1

[All DU0-001 Questions]

What are the three stages of combustion? (Choose three.)

AIncipient

BBack draft

CThermal flux

DIntense heat

EVisible smoke

Show Suggested Answer

Suggested Answer: A, D, E

by Quinn at Jun 10, 2025, 08:49 PM

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21 hours ago

I'm not sure about Thermal flux. I think it might be Back draft instead.

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2 days ago

I agree with Jamie. Incipient, Intense heat, and Visible smoke make sense as the stages of combustion.

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2 days ago

A, D, and E. Incipient, Intense heat, and Visible smoke. Come on, this is Combustion 101, people!

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3 days ago

Definitely A, B, and E. Incipient, Back draft, and Visible smoke are the classic stages of combustion. D is just a side effect, not a stage.

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7 days ago

I think the three stages of combustion are Incipient, Intense heat, and Visible smoke.

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