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单选题
Automatic fire dampers in ventilation systems are operated by use of（）.
A
remotely operated valves
B
fusible links
C
C02 system pressure switches
D
heat or smoke detectors
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单选题The spreading of fire as a result of heat being carried through a vessels ventilation system, is an example of heat transfer by （）.A
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单选题The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE?（）A
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单选题Fusible-link fire dampers are operated by（）.A
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electrical controls on the bridgeC
a mechanical arm outside the vent ductD
the heat of a fire melting the link
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a grease fire in the ventilation system
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单选题A fire in the galley always poses the additional threat of（）.A
contaminating food with extinguishing agentB
shutting all sources of air into the compartmentC
closing the sea chestD
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单选题A fire in the galley ALWAYS poses the additional threat of（）.A
contaminating food with extinguishing agentB
spreading through the engineering spaceC
causing loss of stabilityD
a grease fire in the ventilation system
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单选题Fusible-link fire dampers are operated by（）.A
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a break-glass and pull-cable systemC
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单选题Convection spreads a fire by（）.A
heated gases flowing through ventilation syetemB
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burning liquids flowing into another spaceD
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单选题Convection spreads a fire as a result of （）.A
transmitting the heat of a fire through the ships metalB
burning liquids flowing into another spaceC
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单选题A galley grease fire on the stove may be extinguished using（）.A
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单选题Automatic fire dampers in ventilation systems are operated by a（）.A
remote operated valveB
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heat or smoke detector
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单选题The blocking or absence of fire dampers can cause（）.A
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extinguish the fire by carbon monoxide smotheringC
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protect fire fighting personnel from smoke
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单选题Automatic mechanical ventilation shutdown is required for CO2 systems protecting the（）.A
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cargo compartmentsC
living quartersD
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单选题When fighting an electrical fire, you should first （）.A
stop ventilation to the areaB
stop the vesselC
secure electricity to the circuitD
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单选题Fire dampers prevent the spread of fire by（）.A
convectionB
conductionC
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单选题Radiation can spread a fire by （）.A
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burning liquids flowing into another spaceC
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the transfer of heat across an unobstructed space
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单选题Blocking open or removing fire dampers can cause（）.A
fixed foam systems to be ineffectiveB
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