单选题Which fire detection system is actuated by sensing a heat rise in a compartment?（）AManual fire detection systemBAutomatic fire detection systemCSmoke detection systemDWatchman's supervisory system
单选题
Which fire detection system is actuated by sensing a heat rise in a compartment?（）
A
Manual fire detection system
B
Automatic fire detection system
C
Smoke detection system
D
Watchman's supervisory system
参考解析
解析：
暂无解析
相关考题：
Which of the following components provides a direct source of seawater for the fire main system?A.Rose boxB.Sea chestC.Sluice(闸式) valveD.Fire pump stuffing box
The refrigeration system low pressure cutout switch is actuated by______.A.an electric system managerB.a sensing bulb at the tail coil of the evaporatorC.pressure changes in the suction lineD.failure of the king solenoid valve
The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE?A.Fusible links must be replaced if a damper is activatedB.Fusible links are tested by applying a source of heat to themC.Fusible links must be replaced at every inspection for certificationD.A fusible link will automatically open after a fire is extinguished and reset the damper
Convection spreads a fire by ______.A.heated gases flowing through ventilation systemsB.the transfer of heat across an unobstructed spaceC.burning liquids flowing into another spaceD.transmitting the heat of a fire through the ship’s metal
Fire may be spread by which means?A.Conduction of heat to adjacent surfacesB.Direct radiationC.ConvectionD.All of the above
Cisco IDS sensors form the eyes and ears of your Cisco network intrusion detection system. Placing sensors correctly throughout your network is crucial to successfully implementing your Cisco intrusion detection system .Which two of these are characteristics of an IDS sensor？（）A、 has a permissive interface that is used to monitor networksB、 is an active device in the traffic pathC、 passively listens to network trafficD、 has a promiscuous interface that is used to monitor the network
A datacenter manager would like to ensure that all fire suppression in the datacenter is safe for the equipment in the room. Which of the following classifications should be listed on the fire suppression system？（）A、AB、BC、CD、D
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 （）.AconductionBconvectionCradiationDwindage
单选题The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE?（）AA fusible link will automatically open after a fire is extinguished and reset the damperBFusible links must be replaced at every inspection for certificationCFusible links are tested by applying a source of heat to themDFusible links must be replaced if a damper is activated
单选题The refrigeration system low pressure cutout switch is actuated by （）.Aan electric system managerBa sensing bulb at the tail coil of the evaporatorCpressure changes in the suction lineDfailure of the king solenoid valve
单选题A passenger vessel is required to have a supervised patrol when（）.Athere are passengers berthed on boardBnavigating in excess of eight hoursCthe vessel has substantial wood in its constructionDthere is no automatic fire-detection system installed
单选题Which of the following terms represents the form of heat removed from the refrigerant in the condenser of a refrigeration system?（）ALatent heat of vaporizationBHeat of compressionCSuperheatDAll of the above
单选题Fire may be spread by which means?（）AConduction of heat to adjacent surfacesBDirect radiationCConvectionDAll of the above
单选题Convection spreads a fire by（）.Aheated gases flowing through ventilation syetemBthe transfer of heat across an unobstructed spaceCburning liquids flowing into another spaceDtransmitting the heat of a fire through the ships metal
单选题Convection spreads a fire as a result of （）.Atransmitting the heat of a fire through the ships metalBburning liquids flowing into another spaceCheated gases flowing through ventilation systemsDthe transfer of heat across an unobstructed space
单选题A fire may be spread by which of the following means?（）AConduction of heat to adjacent surfacesBDirect radiationCConvectionDAll of the above
单选题Which of the following is true of the heating system of the Johnstown campus?AThe heat is supplied by human bodies only.BThe heat is supplied by both human bodies and other heat-emitting objects.CThe heat is supplied by both human bodies and conventional fuel.DThe heat is supplied by human bodies, other heat-emitting objects, and conventional fuel.
单选题What is required in addition to the heat，fuel，and oxygen of the fire triangle to have a fire?（）AElectricityBChain reactionCPressureDSmoke
单选题Which space(s) on your cargo vessel must have a fire detection system?（）AAny compartment containing explosivesBAny compartment adjacent to one containing explosivesCEnclosed spaces which are specially suitable for vehiclesDAll of the above
单选题The component of a refrigerating system in which the refrigerant vaporizes and absorbs heat is known as the （）.AcondenserBvapor generatorCaccumulatorDevaporator
单选题A solenoid valve used in a refrigeration system should be installed （）.Awith the axis of the solenoid horizontal, sensing temperature of the box, and upstream of the thermal expansion valveBupright, sensing temperature of the box, and upstream of the thermal expansion valveCupright, sensing temperature of the box, and downstream of the thermal expansion valveDupright, sensing heat of the tail coil, and upstream of the thermal expansion valve
单选题Fire alarm system thermostats are actuated by（）.Asmoke sensorsBthe difference in thermal expansion of two dissimilar metalsCpressure loss due to air being heatedDan electric eye which actuates when smoke interferes with the beam
单选题Which fire fighting agent has the greatest capacity for absorbing heat?（）AwaterBdry chemicalCfoamDCO2
单选题The primary function(s) of an automatic sprinkler system is(are) to（）.Aextinguish the fire which triggers itBlimit the spread of fire and control the amount of heat producedCprotect people in the areas which have sprinkler headsDalert the crew to the fire
单选题Radiation can spread a fire by （）.Atransmitting the heat of a fire through the ship s metalBburning liquids flowing into another spaceCheated gases flowing through ventilation systemsDthe transfer of heat across an unobstructed space
单选题A towing vessel’s fire detection system may be certified to comply with the Coast Guard’s towing vessel fire protection regulations by（）.Aa Coast Guard inspectorBa registered professional engineerCthe owner or Master of the vesselDa licensed electrician
单选题Control valves of a CO2 system may be located within the protected space when（）.Ait is impractical to locate them outsideBthere is also a control valve outsideCthe CO2 cylinders are also in the spaceDan automatic heat-sensing trip is installed