更多“Bus Cycle”相关问题
  • 第1题:

    CYCLE81,CYCLE82,CYCLE83指令均为钻孔循环指令(SIEMENS系统)。


    正确答案:正确

  • 第2题:

    下列指令中,()是毛坯切削循环指令(SIE州田NS系统)。

    • A、CYCLE93
    • B、CYCLE95
    • C、CYCLE96
    • D、CYCLE97

    正确答案:B

  • 第3题:

    关于CYCLE83指令,下面说法正确的是()

    • A、CYCLE83是深钻孔循环指令
    • B、使用CYCLE83指令可以简化编程
    • C、CYCLE83指令执行连续切削进给到孔的地步
    • D、完成CYCLE83指令后刀具将返回到参考平面
    • E、用CYCLE83指令钻孔切削到孔底后,刀具快速返回

    正确答案:A,B,D,E

  • 第4题:

    备用电源系统(ABEX,HMG,SEP)向什么汇流条供电?

    • A、Essential DC bus(Using the TRU)
    • B、Essential AC bus(Using the E-inverter)
    • C、Essential DC bus(Using the TRU)和Essential AC bus(Using the E-inverter)
    • D、Essential DC bus(Using the E-inverter)和Essential AC bus(Using the TRU)

    正确答案:C

  • 第5题:

    哪一个电源向ESSTR供电?

    • A、AC BUS 1或AC BUS 2
    • B、AC BUS 1和AC BUS 2
    • C、AC ESS BUS或应急发电机
    • D、不确定

    正确答案:C

  • 第6题:

    电源系统中,DC BAT BUS可能从哪些汇流条获得电源?()

    • A、电瓶
    • B、DC BUS 1或电瓶
    • C、DC BUS 2或电瓶
    • D、DC BUS 1、DC BUS 2、电瓶

    正确答案:D

  • 第7题:

    如果CMC失去DC BUS1的电源后,将使用使用哪部汇流条的电?()

    • A、DC BUS2
    • B、HOT BATT BUS1
    • C、HOT BATT BUS2
    • D、DC BUS1

    正确答案:C

  • 第8题:

    AC ESS BUS可以由()供电.

    • A、AC BUS 1或AC BUS 2或应急发电机或静变流机
    • B、AC BUS 1或AC BUS 2
    • C、AC BUS 1或应急发电机
    • D、AC BUS 2或静变流机

    正确答案:A

  • 第9题:

    如果AC BUS 1失效,以下说法哪种正确()

    • A、AC BUS 2自动给AC ESS BUS供电,并通过ESS TR给DC ESS BUS供电
    • B、5秒钟后,DC BUS 2自动向DC BUS 1和DC BAT BUS供电
    • C、以上都对

    正确答案:C

  • 第10题:

    单选题
    Proper lubrication of the main bearing is more easily obtained in a single acting four-stroke/cycle diesel engine than in a single acting two-stroke/cycle diesel engine because ()
    A

    bearing pressure in a four-stroke/cycle acting single diesel engine is continually reversed

    B

    bearing pressure in a two-stroke/cycle single acting diesel engine is continually reversed

    C

    the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engine

    D

    two-stoke/cycle diesel engines require more complicated lubrication piping


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    Which of the listed sections of an emergency switchboard is used to supply power for alarm signals under emergency conditions?()
    A

    The generator and bus transfer section

    B

    The 450 volt, 60 cycle, 3 phase bus

    C

    The 120 volt, 3 phase, 60 cycle bus

    D

    The 24 volt DC bus


    正确答案: C
    解析: 暂无解析

  • 第12题:

    单选题
    In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in ().
    A

    two crankshaft revolutions in a two-stroke/cycle engine

    B

    two power strokes in a two-stroke/cycle engine

    C

    one power stroke in a two-stroke/cycle engine

    D

    two piston strokes in a two-stroke/cycle engine


    正确答案: C
    解析: 暂无解析

  • 第13题:

    One hertz is equal to one ( )

    • A、cycle per centimeter
    • B、cycle per meter
    • C、cycle per second
    • D、cycle per eV

    正确答案:C

  • 第14题:

    关于CYCLE93指令,()(SIEMENS系统)。

    • A、CYCLE93是切槽循环指令
    • B、使用CYCLE93指令可以简化编程
    • C、CYCLE93指令可实现断屑加工
    • D、CYCLE93指令可用于切削圆锥面和圆弧面
    • E、CYCLE93可用于径向沟槽的切削加工

    正确答案:A,B,C,E

  • 第15题:

    钻镗循环的深孔加工时需采用间歇进给的方法,每次提刀退回安全平面的应是()。(SIEMENS系统)

    • A、CYCLE81
    • B、CYCLE82
    • C、CYCLE83
    • D、CYCLE84

    正确答案:C

  • 第16题:

    下面指令中,()是切槽循环指令(SIEMENS系统)。

    • A、CYCLE93
    • B、CYCLE95
    • C、CYCLE96
    • D、CYCLE97

    正确答案:A

  • 第17题:

    DCBATBUS可由什么汇流条供电?

    • A、DC BUS 1或电瓶
    • B、DC BUS 1、DC BUS 2或电瓶
    • C、DC BUS 2或电瓶

    正确答案:B

  • 第18题:

    时钟使用的电源是:()

    • A、DC Bus 1
    • B、DC Bus 2
    • C、DC Essential Bus 1
    • D、DC Essential Bus 2

    正确答案:C

  • 第19题:

    基本变压整流器(ESS TR)有哪几个供电来源?()

    • A、AC BUS1,AC BUS2。
    • B、ECMU1;ECMU2。
    • C、DC BAT BUS;DC ESS BUS。
    • D、AC BUS 1;AC BUS 2;CSM/G。

    正确答案:D

  • 第20题:

    应急浮筒用的是哪个汇流条的电()

    • A、DC  ESS  BUS 和 NO.1  DC  PRI  BUS
    • B、NO.1  DC  PRI  BUS 和 NO.2  DC  PRI  BUS
    • C、NO.2  DC  PRI  BUS 和 DC  ESS  BUS
    • D、DC  ESS  BUS  和NO.1  DC  PRI  BUS 和 NO.2 DC PRI  BUS

    正确答案:C

  • 第21题:

    外电源勤务汇流条的电可以来自()

    • A、MAIN BUS 1
    • B、DC BUS 1
    • C、TRANS BUS 1
    • D、BAT BUS

    正确答案:C

  • 第22题:

    单选题
    The size of the exhaust valve opening is ()
    A

    most critical in a four-stroke cycle diesel engine

    B

    most critical in a two-stroke/cycle diesel engine

    C

    most critical in a four-stroke/cycle diesel engine if it is turbocharged

    D

    of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine


    正确答案: C
    解析: 暂无解析

  • 第23题:

    单选题
    Which of the following statements is true regarding the installation of piston rings on two-stroke/cycle, diesel engines as compared to four-stroke/cycle, diesel engines?()
    A

    In a two-stroke/cycle engine, the rings run hotter, requiring the end gap to be greater

    B

    Some provision must be made in a two-stroke/cycle engine to keep the rings from binding in the ports

    C

    No gap is required to exist between the ends of the ring when cold in a two-stroke/cycle engine, but a small gap is required in a four-stoke/cycle engine

    D

    The gaps should be staggered on either side of a piston in a two-stroke/cycle engine, while staggering is not necessary in a four-stroke/cycle engine


    正确答案: A
    解析: 暂无解析