英文POWER和POWER SOURCE的意思都是电源。（）
英文POWER和POWER SOURCE的意思都是电源。（）
相关考题：
Cathodic protection involves supplying electrons to the metal to be protected from an external source. The external source maybe be an external _______ or by__________. A、dc power sourceB、Alternating Power SourceC、A Galvanic CoupleD、Cathode
Which of the following tools is BEST used to measure voltage and amperage from a power source?() A. Loopback PlugB. MultimeterC. Power Supply TesterD. Extension Magnet
Each life jacket light that has a non-replaceable power source must be replaced ______．A.every 6 months after initial installationB.every 12 months after initial installationC.every 24 months after initial installationD.on or before the expiration date of the power source
What power source actuates a solenoid valve ________．A.Air pressureB.Hydraulic pressureC.Electric currentD.Mechanical force
Which statement concerning reserve sources of energy for GMDSS is FALSE ________．A.While the ship is at sea，there must be available at all times a supply of electrical energy sufficient to operate the radio installations and to charge any batteries used as part of a reserve source of energyB.Both the VHF and MF/HF installations must be simultaneously suppliedC.A means of ensuring a continuous supply of electrical power must be provided to all GMDSS equipment that could be affected by an interruption in powerD.If a UPS or equivalent is used to supply power to the ship's GPS receiver or other source of positional information，a means must be provided to ensure the continuous supply of the information in the event of a failure to the ship's main or emergency source of power
He asserted that nuclear power was a safe and non-polluting energy source.A:.maintainedB: recommendedC: consideredD: acknowledged
Devices that supply power when the commercial utility power system fails are called which of the following? 当商业公用电源系统失效后，需使用下列哪一类供电设备？（）A、power conditioners电压稳压器B、power filters电源滤波器C、power dividers功率分配器
下面说法正确的是（）A、power4.5与power5.2都是连续脉冲点火装置B、power4.5与power4.2都是焊接锅架C、三款灶具都有低电量提醒功能D、三款灶具的盛液盘都是滴胶铸铁的
A customer has a p650 on order and plans to put it in a current OEM rack. They are concerned that the p650 power supply may demand more current than the OEM PDU can provide. Which planning guide specification would provide the necessary requirements？（）A、VoltageB、FrequencyC、Power Source Loading （max）D、Power Source Loading （typical）
Which of the following tools is BEST used to measure voltage and amperage from a power source?（）A、Loopback PlugB、MultimeterC、Power Supply TesterD、Extension Magnet
对于OSN设备的部分单板对关键电源都做了备份处理，当这些单板上的电源模块失效时，会自动由相关的备份电源工作，同时上报告警，对于OSN9500而言上报的告警是（）。A、power_abnormalB、power_switchC、power_failD、power_alm
交流不间断电源UPS的英文称为（）。A、UNINTERRUPTIBLE POWER SUPPLYB、UNINTERRUPTIBLE POWER SUPERC、UNCHANGEABLY POWER SUPPLYD、UNCHANGEABLY POWER SUPER
单选题（） is a source of power by which the diesel engine may operate.AWater energyBElectrical energyCChemical energyDHeat energy
单选题Which statement concerning reserve sources of energy for GMDSS is FALSE（）.AWhile the ship is at sea，there must be available at all times a supply of electrical energy sufficient to operate the radio installations and to charge any batteries used as part of a reserve source of energyBBoth the VHF and MF/HF installations must be simultaneously suppliedCA means of ensuring a continuous supply of electrical power must be provided to all GMDSS equipment that could be affected by an interruption in powerDIf a UPS or equivalent is used to supply power to the ship's GPS receiver or other source of positional information，a means must be provided to ensure the continuous supply of the information in the event of a failure to the ship's main or emergency source of power
单选题When measuring AC current flow, you must always connect the meter （）Ain series with the power source and loadBin parallel with the power source and loadCinsuring correct polarityDusing the lowest range possible to prevent instrument damage
单选题Each life jacket light that has a non-replaceable power source must be replaced（）.Aevery 6 months after initial installationBevery 12 months after initial installationCevery 24 months after initial installationDon or before the expiration date of the power source