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Exam (elaborations)

Stcw Basic Training Exa2

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2024/2025 Written for academic year
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STCW BASIC TRAINING EXA2

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STCW BASIC TRAINING EXAM #1


Whatooareootheooconditionsooneededooforooaoofireootooooccur?oo-ooans--
fueloo(materialoothatooactsooasooaoofuel)
sourcesooofooignitionoo(chemical,oobiological,oooroophysical)
oxygen

Whatooareootheoocomponentsooofootheoofireootetrahedron?oo-ooans--
heat,oofuel,oooxygen,oochainooreaction

Howoodoooyouoostopooaoofire?oo-ooans--
Removeooanyooofootheoocomponentsooofootheoofireootetrahedronoo(i.e.ooremoveoofuel,ooox
ygen,ooheat,oooroointerruptootheoochemicalooreaction)

Oxygenoo-ooans---21%ooambientooair
-robustooflamingoocombustionoodownootooo15-16%
-surfaceoocombustionoo(smoldering)oodownootoooaboutoo11%
-lossooofooconsciousnessooinooatmospheresoowithoo12%oooroolessoooxygen

Heatoo-ooans--anythingoothatooproducesootheoorequiredootemperatureooforooignition
-sun
-openooflame
-chemicalooreaction
-sparks
-friction

Fueloo-ooans---onlyoovaporsooburn
-liquidsooandoosolidsoomustoofirstoobeoovaporized
-tendencyooofooaoosubstanceootooovaporizeooisooanooindicationooofooitsooabilityootoooburn
-liquidsoovaporizeoomoreooreadilyoothanoosolids

Chainooreactionoo-ooans---
youoocanoohaveoooxygen,ooheat,ooandoofuelooinootheoosameooplaceooandoostilloonotoohaveo
oaoofire
-
fuelooandoooxygenoorelationshipoomustoobeoobalancedoo(i.e.ooinootheooflammableoorange)o
o
-heatoomustoobeoosufficientootooobringoofuelootoooitsooignition

, Whatooisooaooflashoopointoo(ofooaooliquid)?oo-ooans---
theoolowerootempoothatooaooliquidoocanoogiveoooffoosufficientoogasootoooformooaooflammabl
eoogasoomixtureoonearootheoosurfaceooofooaooliquid
-lowestootempooatoowhichooweoocanoohaveoofire
-
fireooflashesooacrossoosurfaceoogivenoosufficientoooxygenooandooanooexternaloosourceooof
ooignition


WhatooisooaooFireoopoint?oo-ooans---
justooaboveootheooflashoopoint,ooliquidoogivesoooffooflammableoovaporsoorapidlyooenoughoo
tooosupportoocontinuousoocombustion

Whatooisooignitionootemperature?oo-ooans---substanceoostartsootoooburn
-heatoofromooexternalooheatoosourceoo
-auto-ignitio,oonoooexternaloosourceooofooignitionooneeded

Whatooisooautoooignition?oo-ooans--
vaporoogeneratedooignitesoowithoutooanyoooutsideooignitionoosource

Whatooisoovaporization?oo-ooans--rateooincreasesoowithootemperature

Whatooisoospontaneousoocombustion?oo-ooans--
heatooisoogeneratedoobyooaoochemicalooactionoowithinooaoosubstanceooandoothisoocontinue
soountilooyouoohaveooignitionoo(usuallyoobeginsoowithoooxidationooandoocombinesoooxygen
ooandoogivesoooffooenergyooinootheooformooofooheat)


Whatooisoolowerooflammableoolimit?oo-ooans--
theooleastooconcentrationooofooflammableoovaporsooinooairoothatoowillooburn

Whatooisooupperooflammableoolimitoo-ooans--
theoogreatestooconcentrationooofooflammableoovaporsooinootheooairoothatoowillooburn

Whatooareootheooresultsooofoocombustion?oo-ooans--smoke,ooflame,ooheat,ooandoogases

_____________ooisootheooresultooofooincompleteoocombustionoo-ooans--smoke

Whiteoooroolightoogreyooindicatesoo____________ooburningoo-ooans--free

Blackoooroodarkoogreyooindicatesooaoo______oofireooorooaoo_________ooofoooxygenoo-
ooans--hot,oolack


Howooisooflameooproduced?oo-ooans--
resultooofooconversationooofootheoofuelootoooaoostateooofooblazingoocombustion

Howooisooheatoogenerated?oo-ooans--rapidoooxidationooofootheoomaterial

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