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The most frequent cause of fires aboard tankers is due to ______．
A.Improper gas freeing
B.Leaking of cargo pump glands
C.Tobacco smoking
D.Spontaneous combustion
参考答案
更多 “ The most frequent cause of fires aboard tankers is due to ______．A.Improper gas freeingB.Leaking of cargo pump glandsC.Tobacco smokingD.Spontaneous combustion ” 相关考题
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The effect that exhaust gas recirculation can reduce NOX formation is partly due to a reduction of the()concentration in the combustion zone and partly due to the content of water and carbon dioxide in the exhaust gas.A.OxygenB.NitrogenC.SulphurD.Freon
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The major cause of fuel pump and injection system problems is _____.A.improper adjustmentsB.contaminated fuelC.kinked fuel linesD.excessive engine vibration
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An inert gas system on a tanker should be used to ______.A.prevent the generation of flammable or combustible gas in tanksB.blow out cargo lines to prevent the build up of gas concentrationsC.dilute tank atmospheres to keep gas concentrations below the lower explosive limitD.prevent fires in the pumproom by continually displacing flammable vapors
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Certificate of Fitness for the Carriage of Liquefied Gases in Bulk shall be carried on board by ______．A.gas carriers constructed on or after 1 July 1986B.gas carriers constructed before 1 July 1986C.All chemical tankersD.oil tankers of 150 gross tonnage and above
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The blowers of an inert gas generation system aboard a tanker，will be automatically secured if ______．A.Normal water supply at the water seal is lostB.The temperature of the inert gas being delivered to the cargo tanks is more than 150℉C.The cooling water supply to the scrubbers is lostD.All of the above
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Which statement about inert gas pressures in a cargo tank is TRUE ________．A.The pressures of the inert gas in the tank may create excessive pressure at the pump while dischargingB.Gas pressures should be maintained at the highest permissible level throughout the discharging processC.High gas pressures may cause pyrophoric oxidation in the tankD.High gas pressures may cause loss of suction when stripping
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Which statement is TRUE concerning inert gas systems on tankers ________．A.Flue gases from the ship's boilers are used in some systemsB.The gas is heliumC.Using the system accelerates the rusting of the tanksD.All of the above
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What kind of （）can be used for gas and chemical fires?A、equipmentB、apparatusC、extinguishersD、machines
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The most prevalent cause of computer center fires is which of the following?计算机中心火灾主要的原因是以下哪一项？（）A、AC equipment 交流电源设备B、Heating systems 供热系统
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单选题Which kind of vessel is not required to comply with the ISM code until 2002?（）A
Passenger ships and high-speed crafts of 500 gross tons or moreB
Oil tankers and Chemical tankers and Gas carriersC
Bulk freight vesselsD
General cargo vessels
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单选题Fire extinguishers on inspected vessels are numbered by size I through V，with I being（）.A
used for electrical fires onlyB
the smallestC
the most accessibleD
the most effective
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单选题The purpose of inert gas systems aboard tankers is to（）.A
allow sufficient oxygen in the tank to sustain lifeB
prevent outside air from entering the tankC
provide more discharge pressureD
comply with pollution regulations
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单选题When fruit is carried as refrigerated cargo，the most frequent cause of its being infected at the discharge port is（）.A
leaks in the ship's refrigeration systemB
improper cleaning of the cargo spacesC
carriage at the wrong temperatureD
improper precooling of the cargo spaces
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单选题Ullages on tankers are measured from（）.A
an above-deck datum such as the top of the ullage pipeB
the tank ceiling aboard transversely framed vesselsC
the tank topD
a thievage mark below the edge of the deck
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单选题Fins are installed on the generating tube surfaces in waste heat boilers to （）.A
prevent soot fires in the exhaust systemB
prevent exhaust gas erosion of the tubesC
increase the velocity of exhaust gas flowD
increase the rate of heat transfer
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单选题Fire extinguishers used on ship’s are numbered by size I through V，with I being（）.A
used for electrical fires onlyB
the smallestC
the most accessibleD
the most effective
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单选题The author most probably agrees that artificial sweetened gum _____A
is not effective in reducing stress.B
may cause some health problems.C
should be avoided although it is healthful.D
is harmful for one’s health due to its sugar containing.
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单选题Fires in escaping flammable gas are quickly brought under control by（）A
stopping the flow of gasB
reducing the chemical chain reactionC
increasing the oxygen supplyD
cooling below the autoignition point
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单选题Which type of ships as below isn’t subject to Enhanced Survey Program (ESP)?（）A
Non-sea-going shipsB
Liquefied gas carriersC
Bulk carriers, including ore carriersD
Edible oil tankers
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单选题Due to the hazards involved with Halon extinguishers on a ship，the size II extinguisher may only be used（）.A
outsideB
on class C firesC
in an emergencyD
on class B fires
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单选题An inert gas system on a tanker should be used to（）.A
prevent the generation of flammable or combustible gas in tanksB
blow out cargo lines to prevent the build up of gas concentrationsC
dilute tank atmospheres to keep gas concentrations below the lower explosive limitD
prevent fires in the pumproom by continually displacing flammable vapors
考题
单选题An inert gas system on a tanker should be used to（）.A
prevent the generation of flammable or combustible gas in tanksB
blow out cargo lines to prevent gas concentrationsC
dilute tank atmospheres to keep gas concentrations below the lower explosive limitD
prevent fires in the pumproom by continually displacing flammable vapors
考题
单选题The blowers of an inert gas generation system aboard a tanker，will be automatically secured if（）.A
normal water supply at the water seal is lostB
the temperature of the inert gas being delivered to the cargo tanks is more than 150°FC
the cooling water supply to the scrubbers is lostD
all of the above
考题
单选题The most prevalent cause of computer center fires is which of the following?计算机中心火灾主要的原因是以下哪一项？（）A
AC equipment 交流电源设备B
Heating systems 供热系统
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