更多"In a simple series circuit, the ent"的相关试题:
[单项选择]For practical purposes, in a simple series circuit, the source voltage will be dropped across one resistor if it has（）.
A. half the resistance of the other resistor
B. a resistance equal to the other
C. at least ten times the resistance of the other
D. a partial short circuit
[单项选择]车型volt的中文名称是（）
A. 普拉多
B. 沃蓝达
C. 翼虎
D. 翼搏
[多项选择]VoLT EMonth-to-ear delay主要包括（）。
A. 应用延时
B. 传输延时
C. 空口延时
D. Internet延时
[单项选择]The output voltage of a 440 volt, 60 hertz, AC generator is controlled by the （）.
A. prime mover speed
B. exciter output voltage
C. load on the alternator
D. number of poles
[单项选择]Stanchions prevent the entire deck load on a ship from being carried by the（）.
A. bulkheads
B. stringers
C. frames and beam brackets
D. deck longitudinals
[判断题]在LTE无线网和EPC核心网内部，网络为IMS APN专用承载提供相应等级的Qos保障，以使VoLTE用户获得更好语音业务体验。
[单项选择]Which equipment is the primary source of generating a locating signal?（）
A. DSC only
B. DSC and EPIRB
C. SART and DSC
D. EPIRB and SART
[单项选择]The main source of fuel injection system malfunctions is （）
A. improper adjustments
B. contaminated fuel
C. coated fuel lines
D. excessive vibration
[单项选择]The most common source of excitation for synchronous motors is a/an （）.
A. low voltage battery
B. motor attenuator set
C. DC exciter generator
D. AC supply
[单项选择]The major source of chemical contaminants in hydraulic fluid is （）.
A. microscopic steel shavings
B. abrasive waste
C. anti-oxidant compounds
D. oxidation by-products
[单项选择]左侧SOURCE OFF灯点亮表明（）
A. 交流转换汇流条1失电
B. 交流转换汇流条1失电后由交流转换汇流条2向交流转换汇流条1供电
C. 交流备用汇流条失电
D. 以上都对
[单项选择]The great source of modification of the air stream is found in the（）cavity.
A. nasal
B. oral
C. lung
D. glottis
[单项选择]Which equipment is not a source of locating signals?（）
A. EPIRB's that transmit on 406 MHz
B. Survival craft VHF transceivers that provide a beacon on 121.5 MHz
C. COSPAS-SARSAT EPIRBs
D. SARTs operating on 9 GHz
[单项选择]The source of energy fitted in GMDSS complying vessels must be（）.
A. the main source of energy
B. emergency source of electrical power
C. the reserve source of energy
D. all of above
[单项选择]What is the most important source of information to be used in correcting charts and keeping them up to date（）.
A. Fleet Guides
B. Notice to Mariners
C. Sailing Directions
D. Pilot Charts
[单项选择]Under normal conditions, the main source of crankcase oil contamination is attributed to （）
A. metal particles loosened by wear
B. air when air cleaners are not used
C. condensation of water vapors
D. breakdown of the lubricating oil by dilution
[单项选择]Which of the following problems is the main source of fuel pump and injection system malfunctions?（）
A. Improper lubrication
B. Air in the fuel system
C. Coated fuel lines
D. Excessive vibration
[单项选择]The maritime radio system consisting of a series of coast stations transmitting coastal warnings is called（）.
A. NAVTEX
B. HYDROLANT/HYDROPAC
C. NAVAREA
D. SAFESEA
