警察人員考試三等考試-消防警察人員類別中華民國憲法與消防警察專業英文107 年第 49 題單選題考點：油槽沸溢考點：閃燃現象

_ ___ in a room has been interpreted as thermal instability caused by the heat generation rate increasing faster with temperature than the rate of aggregated heat losses.

ABoil-over

BFlashover正確答案

CVentilation-controlled

DFuel-controlled

答案與詳解

正確答案

Flashover（閃燃）指室內熱產生率超過熱損失率時的熱失控現象，整室瞬間起火。

ABoil-over油槽沸溢✕ 錯誤

Boil-over 指油類火災中水分氣化導致燃油噴濺的「沸溢」現象，發生在儲油槽而非房間，與熱失控定義不符。

BFlashover閃燃現象✓ 正確

Flashover（閃燃）正是題幹定義：室內熱產生速率隨溫度上升快於熱損失速率，造成熱不穩定，導致室內可燃物瞬間全面起火。

CVentilation-controlled✕ 易錯陷阱

DFuel-controlled✕ 易錯陷阱

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精選詳解

___ _____ in a room has been interpreted as thermal instability caused by the heat generation rate increasing faster with temperature than the rate of aggregated heat losses.