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After extinguishing a fire with CO2, it is advisable to ______.
A.use all CO2 available to cool the surrounding area
B.stand by with water or other agents
C.thoroughly ventilate the space of CO2
D.jettison all burning materials
参考答案
更多 “ After extinguishing a fire with CO2, it is advisable to ______.A.use all CO2 available to cool the surrounding areaB.stand by with water or other agentsC.thoroughly ventilate the space of CO2D.jettison all burning materials ” 相关考题
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One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space isA.the 'snow' which is sometimes discharged along with the gas is toxicB.prolonged exposure to high concentrations of CO2 gas causes suffocationC.rapid dissipation of the CO2 vaporD.the CO2 gas is lighter than air and a large amount is required to extinguish a fire near the deck
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In fighting a fire in a fuel tank, the FIRST action you should attempt is to _____.A.secure all sources of fresh air to the tankB.begin transferring the fuel to other tanksC.top off the tank to force out all vaporsD.station someone at the fixed CO2 release controls
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In the event of fire in a machinery space，______.A.the fixed carbon dioxide system should be used only when all other means of extinguishment have failedB.the fixed carbon dioxide system should be used immediately，as it is the most efficient means of extinguishmentC.water in any form should not be used as it will spread the fireD.the space should be opened 5 minutes after flooding CO2 to prevent injury to personnel
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Which of the following statements is FALSE，concerning the regulations pertaining to the cylinder room of a fixed CO2 fire extinguishing system ________．A.The compartment must be properly ventilatedB.The temperature of the room should never exceed 130℉C.The door must be kept unlockedD.The compartment shall be clearly marked and identifiable
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Fire protection regulations for towing vessels require all crew members to know how to perform each of these tasks EXCEPT ______．A.Start the mechanical ventilation system for the engine roomB.Operate the fuel shut-off for the engine roomC.Operate all fire extinguishing equipment aboard the vessel on board the vessel，including starting the fire pumpD.All of the above
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Before using a fixed CO2 system to fight an engine room fire, you must ______.A.secure the engine room ventilationB.secure the machinery in the engine roomC.evacuate all engine room personnelD.All of the above
考题
Close all fire doors and use the （）（干粉灭火器）.A、dry powder extinguisherB、foam extinguisherC、CO2 extinguisherD、portable extinguisher
考题
CO2 and Halon extinguishers are used for electrical fire, as well as （）fire.A、commonB、oilC、electricalD、chemical
考题
单选题Before using a fixed CO2 system to fight an engine room fire，you must（）.A
secure the engine room ventilationB
secure the machinery in the engine roomC
evacuate all engine room personnelD
All of the above
考题
单选题There are two disadvantages to CO2 pump as a firefighting agent. One of these is the limited quantity available，and the other is（）.A
the lack of cooling effect on heated materialsB
that it cannot be used in a dead ship situation with no electrical power to the CO2 pumpC
that it breaks down under extreme heat to form poisonous gasesD
there is no effect on a class A fire even in an enclosed space
考题
单选题Fire protection regulations for towing vessels require all crew members to know how to perform each of these tasks EXCEPT（）.A
start the mechanical ventilation system for the engine roomB
operate the fuel shut-off for the engine roomC
operate all fire extinguishing equipment aboard the vessel on board the vessel，including starting the fire pumpD
All of the above
考题
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
a grease fire in the ventilation system
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单选题Fire protection regulations for towing vessels require training in all of the following，EXCEPT（）.A
putting on a fireman's outfit，if the vessel is so equippedB
donning a self-contained breathing apparatus，if the vessel is so equippedC
activating the general alarm and reporting inoperative alarm systems and fire-detection systemsD
refilling and servicing all expended fire extinguishing equipment
考题
单选题Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank?（）A
Commence draining that tank as quickly as possibleB
Seal off all vents to that tankC
Activate the CO2 system to that tankD
Shut off the steam heating coils
考题
单选题If a CO2 fire extinguisher is not readily available, which of the listed fire extinguishers would be best suited to combat a small electrical fire in a switchboard?（）A
Dry chemicalB
HalonC
Low velocity fogD
Steam
考题
单选题The FIRST course of action in fighting a fire in a cargo or fuel oil tank is to （）.A
secure all openings to the tankB
discharge an initial charge of CO2 with a hand portable extinguisherC
direct a fire hose into the tank and energize the fire mainD
spray the tank boundaries with a fire hose to promote cooling
考题
单选题In order to release CO2 to the machinery spaces from a fixed fire extinguishing system, you must（）.A
actuate an alarm and open the engine room control valveB
actuate an alarm and open the engine room CO2 releasing valveC
open the engine room control valve and shut off engine room ventilation fansD
open the engine room control valve and then the CO2 releasing valve
考题
单选题Multiple fire pumps may be used for other purposes provided that one pump is（）.A
on line to the fire mainB
kept available for use on the fire main at all timesC
capable of being connected to the fire mainD
rated at or above 125 psi
考题
单选题关闭所有防火门并使用干粉灭火器。（）A
Close all fire doors and use the dry powder extinguisher.B
Close all fire doors and use the foam extinguisher.C
Close all fire doors and use the CO2 extinguisher.D
Close all fire rooms and use the dry powder extinguisher.
考题
单选题The fire extinguishing action of CO2 comes mostly from （）.A
breaking the fire chemical chain reactionB
smotheringC
coolingD
isolating the heat from the fuel
考题
单选题If a small fire initially breaks out in the engine room bilges, in which of the following sequences should the fire extinguishing agents or systems be used?（）A
Fixed CO2,semi-portable CO2, then hand portable CO2B
Semi-portable CO2, fixedCO2, then hand portable CO2C
Hand portable, semi-portable CO2, then as a last resort the fixed CO2 systemD
Hand portable, fixed CO2, then as a last resort the semi-portable CO2
考题
单选题In fighting a fire in a fuel tank, the FIRST action you should attempt is to （）.A
secure all sources of fresh air to the tankB
begin transferring the fuel to other tanksC
top off the tank to force out all vaporsD
station someone at the fixed CO2 release controls
考题
单选题After extinguishing a paint locker fire using the fixed CO2 system，the next action is to have the space（）.A
opened and burned material removedB
left closed with vents off until all boundaries are coolC
checked for oxygen contentD
doused with water to prevent reflash
考题
单选题Your vessel is equipped with a fixed CO2 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?（）A
Use the CO2 system and evacuate the engine roomB
Use the fire main system and evacuate the engine roomC
Evacuate the engine room and use the CO2 systemD
Evacuate the engine room and use the fire main system
考题
单选题After extinguishing a fire with CO2，it is advisable to（）.A
use all CO2 available to cool the surrounding areaB
stand by with water or other agentsC
thoroughly ventilate the space of CO2D
jettison all burning materials
考题
单选题After extinguishing a fire with C02,it is availabe to（）.A
use all CO2 available to cool the surronding areaB
stand by with water or other agentsC
thoroughly ventilate the space of CO2D
jettison all buring materials
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