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
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 ventilated
B.The temperature of the room should never exceed 130℉
C.The door must be kept unlocked
D.The compartment shall be clearly marked and identifiable
相关考题：
All the following statements concerning the nature of language change is true except() A language change is inevitableB language change is abruptC language change is universalD language change is extensive
Which statement concerning carbon dioxide is FALSE ________．A.It displaces the oxygen in the airB.It cannot be seenC.It cannot be smelledD.It is safe to use near personnel in a confined space
Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels ________．A.A centerline crane can never be operated in tandemB.One crane is able to work one end of two adjacent hatchesC.These cranes are more economical and weigh less than outboard-mounted cranesD.One crane is able to work both sides of the ship
Which of the following statements is FALSE concerning the proper procedure in handling a fire hose ________．A.A 1.5 inch hose should be deployed with a minimum of a nozzleman and hosemanB.Back-up hosemen should be positioned wherever the hose makes a significant turnC.The fire hose should be partially charged before deploying it from the fire stationD.The nozzleman should always hold the nozzle with one hand on top，to prevent kickback
Which of the following statements are FALSE concerning the defragfs command？（）A、 The defragfs command should not be run against file systems and logical volumes that contain mostly transitory information， such as /tmp.B、 The defragfs command should not be run on a large JFS2 file system when running on a 32-bit kernel.C、 The defragfs command can improve file system performance by increasing the file system’s contiguous free space.D、 The defragfs command can only be run against file systems that are mounted with read-write permissions.
Which of the following statements is false？（）A、There can be more than one master catalog for a storeB、A sales catalog is a subset of the master catalogC、The master catalog is the central place for the stores merchandiseD、There can be more than one sales catalog for a storeE、Multiple stores can share a master catalog
Which of the following statements concerning intellectual property is wrong？（）A、Intellectual property is an intangible creationB、Intellectual property in ludes patents，trademarks，copyrights，etc.C、Intellectual property is a visible creationD、There are some agreement sconcerning intellectual property under the WTO
单选题Which of the following statements concerning energy is correct?（）AEnergy can be created or destroyedBEnergy may not be transformedCThe total quantity of energy in the universe is always the sameDNone of the above
多选题Concerning the figure below, if a =b, which of the following statements must be true? (Indicate all such statements.)Ac=dBl and k are parallelCm and l are perpendicular
单选题Which of the following statements is false？（）AThere can be more than one master catalog for a storeBA sales catalog is a subset of the master catalogCThe master catalog is the central place for the stores merchandiseDThere can be more than one sales catalog for a storeEMultiple stores can share a master catalog
单选题Which of the following statements concerning cargo is correct?（）ACargoes are any type of goods transported by any type of shipsBCargoes are goods transported in bulkCCargoes usually include goods transported in bulk and in containersDCargoes are usually packaged in containers
单选题Which of the following statements concerning butterfly valves is correct?（）ASpecial tools are required for lapping or grindingBIt is impossible to throttle flow with a butterfly valveCTo close the valve, it is only necessary to turn the handle a quarter of a turnDThe butterfly valve should never be used in a freshwater system
单选题Which of the following statements is true concerning centrifugal pumps?（）AThey are particularly suited for pumping high viscosity fluidsBThey are started with the discharge valve openedCThe flow of liquid is developed by imparting energy due to the rotation of an impellerDThey are always mounted in a horizontal position
单选题Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels（）.AA centerline crane can never be operated in tandemBOne crane is able to work one end of two adjacent hatchesCThese cranes are more economical and weigh less than outboard-mounted cranesDOne crane is able to work both sides of the ship
单选题Which of the following statements is true concerning any evaporator?（）AHigh conductivity of the distillate indicates distillate salinity is excessiveBIncreasing the absolute pressure of the shell will increase the distillers capacityCMesh separators are used in evaporators to filter the distillateDReducing the brine density will reduce the heat lost overboard
单选题Which of the following statements is correct concerning a typical shipboard multi-coil refrigeration system?（）AThe liquid receiver functions to collect and remove non-condensable gasesBA thermostatic expansion valve is used to control refrigerated space temperatureCRefrigerant temperature in an evaporator is directly related to refrigerant pressureDDehydrators must be used continuously in a refrigeration system
单选题Which of the following statements concerning fire-tube boilers is correct?（）ACombustion gases flow through the tubesBFlames impinge on the tubesCCombustion occurs in the tubesDWater flows through the tubes
单选题Which of the following statements is true concerning the cetane number of diesel fuel?（）AThe cetane number affects the amount of injection lagBThe cetane number is an indication of the fuels viscosityCIgnition lag is reduced with fuels having a high cetane numberDThe cetane number is of little significance in the combustion process
单选题Which of the following statements are FALSE concerning the defragfs command？（）A The defragfs command should not be run against file systems and logical volumes that contain mostly transitory information， such as /tmp.B The defragfs command should not be run on a large JFS2 file system when running on a 32-bit kernel.C The defragfs command can improve file system performance by increasing the file system’s contiguous free space.D The defragfs command can only be run against file systems that are mounted with read-write permissions.
单选题Which of the following statements is correct concerning the “flash point ” of a liquid?（）AIt is lower than the ignition temperatureBIt is the temperature at which a substance will spontaneously igniteCIt is the temperature at which a substance, when ignited, will continue to bumDIt is the temperature at which the released vapors will fall within the explosive range
单选题Which of the following statements is true concerning an oil cooler?（）AThe oil temperature is less than the cooling water temperatureBThe oil pressure is less than the cooling water pressureCThe oil pressure is greater than the cooling water pressureDThe oil flow control valve is always installed in the oil input line
单选题Which of the following statements concerning fuel atomization in a diesel engine cylinder is correct?（）AThe greater the atomization, the greater the penetrationBThe greater the atomization, the less the penetrationCThe degree of atomization has nothing to do with the degree of penetrationDAtomization and penetration are one and the same
单选题Which of the following statements is true concerning simple parallel resistance circuits?（）AThe total current flow equals the sum of the individual currentsBThe total current flow equals the reciprocal of the sum of the individual currentsCThe total resistance equals the sum of the individual resistanceDThe total voltage equals the sum of the individual voltages across each resistance
单选题Which of the following statements is true concerning Halon 1301 fire extinguishing equipment?（）AThe agent is considered nontoxic at room temperature in low concentrationsBThe agent is less effective than carbon dioxideCHalon primarily extinguishes the fire by coolingDThe agent cannot be used on electrical fires because it leaves a residue
单选题With reference to a radial piston pump, which one of the following statements is false?（）ASurrounding the fixed shaft is a hollow shaftBThis hollow shaft carries radial boresCEach bore is fitted with a well-lapped plungerDThere are always even numbers of bores
单选题Which of the following statements is correct concerning the viscosity of lubricating oil?（）AViscosity will increase as temperature increasesBViscosity is a measure of a fluid s internal resistance to flowCViscosity will decrease as temperature decreasesDViscosity is not dependent on temperature
单选题Which of the following statements is NOT a characteristic of a welfare state mentioned in this passage?AFree education is available to a child.BLaws are made to fix the minimum wage.CA jobless person can be insured.DThere are regulations for rent.