三菱单项选择题三概要
1、判断交流或直流接触器的依据是：（ B）
A、线圈电流的性质
B、主触点电流的性质
C、主触点的额定电流
D、辅助触点的额定电流
2、用于使自动空气开关远距离断开电路的是：（C）
A、过电流脱扣器
B、欠电压脱扣器
C、分励脱扣器
D、自由脱扣器
3、把线圈额定电压为220V的交流接触器线圈误接入380V的交流电源上会发生的问题是：（C ）
A、接触器正常工作
B、接触器产生强烈震动
C、烧毁线圈
D、烧毁触点
4、下述对PLC存储器描述错误的是：（A）
A、存放输入信号
B、存放用户程序
C、存放数据
D、存放系统程序
5、分析电气原理图的基本原则是：（Ｃ）
A、先分析交流通路
B、先分析直流通路
C、先分析主电路、后分析辅助电路
D、先分析辅助电路、后分析主电路
6、自动空气开关的电气符号是：（Ｂ）
A、SB
B、QF
C、FR
D、FU
7、下列对PLC软继电器的描述，正确的是：（Ａ）
A、有无数对常开和常闭触点供编程时使用
B、只有2对常开和常闭触点供编程时使用
C、不同型号的PLC的情况可能不一样
D、以上说法都不正确
8、ST指令的作用是：（Ａ）
A、用于单个常开触点与母线连接
B、用于单个常闭触点与上面的触点并联连接
C、用于单个常闭触点与前面的触点串联连接
D、用于单个常开触点与上面的触点并联连接
9、世界第一台PLC诞生于（）
A 1968年
B 1971年
C 1969年
D 1973年
10、世界上生产第一台PLC的厂家是（）
A DEC
B GE
C SIEMENS
D OMRON
11、三菱公司的产品是下面哪一种（）
A S7-300
B SLC100
C FX2N
D TI510
12、小型机的I/O点数一般在（）以下
A 512点
B 2K
C 256点
D 1024点
13、大型机的I/O点数一般在（）以上
A 1024点
B 2048点
C 512点
D 4K
14电可擦只读存储器是（）
A EPROM
B EEPROM
C ROM
D PROM
15、FX系列PLC用户程序存储器每步占（）个字
A 4
B 1 C1/2 D 2
16、FX2n系列PLC输出继电器可外接的电源为（）
A 0V
B 交流250V以下
C 直流30V以下
D 交流380V以下
17、FX2n系列PLC输出继电器驱动负载时可接电源为（）
A 交流380V以下，直流24V以下
B 交流250V以下，直流30V以下
C交流250V以下，直流220V以下 D 交流250V以下，直流48V以下
18、FX2n系列PLC带驱动电阻性负载时，每点允许流过的最大电流为（）
A 10A
B 4A
C 1A
D 2A
19、FX2n系列PLC驱动灯负载时，每点带灯的最大功率为（）
A 50W
B 200W
C 60W
D 100W
20、下列型号中，为PLC扩展模块的是（）
A FX2n-64MR
B FX2n-32MT
C FX2n-32ER
D FX2n-64MS
21、FX2n-64MR中，64表示（）
A 实际做出的I/O点数和
B 实际有的I/O点数和
C实际做出的O点数和 D 实际有的O点数和
22、下列型号中，为晶体管输出型的是（）
A FX2n-64ER
B FX2n-64MR
C FX2n-64MS
D FX2n-64MT
23、FX2n系列PLC的输入，输出继电器的地址采用（）编号
A 八进制
B 十进制 C二进制 D 十六进制
24、FX2n系列PLC的辅助继电器的地址采用（）编号
A 八进制
B 十进制 C二进制 D 十六进制
25、属于停电保持辅助继电器的是（）
A M489
B M500
C M100
D M300
26、FX2n系列PLC中10ms时钟脉冲发生器为（）
A M8011
B M8012
C M8013
D M8014
27、FX2n系列PLC中100ms时钟脉冲发生器为（）
A M8011
B M8012
C M8013
D M8014
28、FX2n系列PLC中1s时钟脉冲发生器为（）
A M8011
B M8012
C M8013
D M8014
29、FX2n系列PLC中1min时钟脉冲发生器为（）
A M8011
B M8012
C M8013
D M8014
30、FX2n系列PLC中初始状态继电器是（）
A S900
B S500
C S20
D S5
31、FX2n系列PLC中回零状态继电器是（）
A S10
B S20
C S500
D S0
32、FX2n系列PLC中报警用状态继电器是（）
A S800
B S900
C S500
D S400
33、FX2n系列PLC中时钟脉冲为1ms的定时器是（）
A T0
B T256
C T245
D T250
34、FX2n系列PLC中时钟脉冲为10ms的定时器是（）
A T190
B T200
C T245
D T250
35、FX2n系列PLC中时钟脉冲为0.1s的定时器是（）
A T0
B T200
C T246
D T244
36、FX2n系列PLC中定时器属于（）
A 通电延时 B断电延时
37、FX2n系列PLC中属于32位加/减计数器的是（）
A C100
B C50
C 200
D C150
38、FX2n系列PLC中属于高速计数器的是（）
A C235
B C230
C 200
D C100
39、FX2n系列PLC中不能使用LD指令的元件是（c ）
A X
B Y
C
D D M
40、FX2n系列PLC中不能使用LDI指令的元件是（）
A X
B V
C Y
D S
41、FX2n系列PLC中不能使用OUT指令的元件是（）
A Y
B X
C S
D M
42、FX2n系列PLC中OUT T0 K20表示的时间是（）
A 0.2S
B 2S
C 20S
D 200S
43、FX2n系列PLC中OUT T200 K500表示的时间是（）
A 0.5S
B 5S
C 50S
D 500S
44、FX2n系列PLC中OUT T246 K10表示的时间是（）
A 0.01S
B 0.1S
C 1S
D 10S
45、FX2n系列PLC中不能使用AND指令的元件是（）
A X
B Z
C M
D Y
46、FX2n系列PLC中不能使用ANI指令的元件是（）
A V
B S
C M
D Y
47、FX2n系列PLC中能带操作元件的指令是（）
A AN
B B ORB
C AN
D D MPS
X0 X1
48、在梯形图 M0 中，元件X1使用的指令是（）
M0
A LD
B AND
C ANB
D ANI
49、下面梯形图中，是纵接输出的是（）
A X0
B X0 Y0 Y0
Y1 Y1
C X0 Y1
Y0
50、下面梯形图中，是多重输出的是()
A B X0 X0 Y0 Y0
Y1 Y1
C
X0 Y1
Y0
51、下列梯形图中没有错误的是（）
A X0
B X0 Y0 M0
X1 X1
C X0
D X0
Y0 M0
X1 X1
52、下列梯形图中，当X0间断时，能使Y0输出脉冲的是（）
53、梯形图中，经过（ ），Y0有输出
X0 X1
M0
M0 T0 K18000
T0
C0 K36
A 36小时
B 54小时
C 18小时
D 24小时
54、在下面梯形图中，没有错误的是（ ）
A B
55、指令PLS的操作元件是（）
A X,Y
B Y,M
C M,S
D Y,S
56、指令PLF的操作元件是（）
A X,Y
B Y,M
C M,S
D Y,S
57、指令SET可带的操作元件是（）
A X,Y,M
B S,Y,M
C T,S,Y
D T,C,Y
58、指令RST可带的操作元件是（）
A X,Y,M
B T,X,D
C T,C,S
D T,X,C
59、与 X0 可等效的梯形型图是（）
A B
C X0
D X0
60、与 X0 可等效的梯形图是（）
X0 X0
A B
C X0
D X0
61、与 X0 可等效的梯形图是（）
A X0
B X0
C X0
D X0
62、与 X10 可等效的梯形图是（）
A B
X10
C D X10
X10
63、与
可等效的梯形图是（）
A X10
B X10
C D X10
64、指令PLS可带的操作元件是（）
A M,Y
B C,Y
C M,C
D T,C
65、指令PLF可带的操作元件是（ B ）
A C,T
B Y,M
C D,Y
D S,X
66、梯形图 X0 中，N的取值范围是（）
A 0～7
B 1～7
C 0～8
D 1～8
67、指令MC的操作元件只能是（）
A C,Y
B M,Y
C M,S
D S,T
68、指令ORB,ANB后面（）
A 可带操作元件
B 不能带操作元件
C 可带Y,M
D 可带C,T
69、指令MPS,MRD,MPP后面（）
A 不能带操作元件
B 可带操作元件
C 可带Y,M
D 可带C,T
70、关于指令END下面说法错误的是（）
A 一段程序的结束
B END后的指令不能执行
C 可利用END的特点检查程序
D PLC运行时END后的指令仍会被扫描
71、关于元件K2X0，说法错误的是（）
A 表示X0～X7
B 可表示一个二进制数
C 表示X0,X1
D 可表示一个十进制数
72、元件K2Y0，属于（）
A 字元件
B 位元件 C字，位混合元件 D 组合元件
73、元件X,Y,M,T,C,K2M0中，字，位混合元件有（）
A 2
B 3
C 4
D 5
74、元件X,Y,M,C,T,K2Y10中，字，位混合元件有（）
A 2
B 3
C 4
D 5
75、元件X,Y,D,C,V,Z中，字元件有（）
A 2
B 3
C 4
D 5
76、指令MOV(P)中,P表示（）
A 32位
B 16位
C 脉冲执行
D 连续执行
77、指令（D）MOV中,D表示（）
A 32位
B 16位
C 脉冲执行
D 连续执行
78、功能号FNC00，表示的助记符为（）
A CALL
B CJ
C SRET
D IRET
71.数据存储器D可处理的数据范围为（）
A -32767～32767
B -32768～32767
C -32768～32768
D -32767～32768
79、32位数据寄存器D0，可处理的数据范围为（）
A -2147483648～2147483647
B -2147483648～2147483648
C -2147483647～2147483647
D -2147483647～2147483648
80、变址寄存器V，2，组合在一起使用时表示（）
A 16位
B 32位
C 64位
D 8位
81、如图示：若X1=1，则下列结果中正确的是（）
A Y3、Y1线圈得电
B Y0、Y3线圈得电
C Y2、Y3线圈得电
D Y2、Y1线圈得电
82、模拟量输入模块FX2N-4AD中，模拟量采集信号通道关闭的是（）
A BFM=H0000
B BFM=H1212
C BFM=H1111
D BFM=H3333
83、模拟量输入模块FX2N-4AD中，其识别码为（）
A 2010
B 3010
C 2100
D 3100
84、在模拟量输入模块FX2N-4AD中，其四个输入通道，可采集的信号，下面四个选项中错误的是（）
A -10V～+10V
B 0V～+20V
C +4MA～+20MA
D -20MA～+20MA
85、读取模拟量输入模块FX2N-4AD中的数据时，要使用下面的（）指令。
A FROM
B TO
C MOV
D SMOV
86、将主机的数据写入模拟量输入模块FX2N-4AD中时，要使用下面的（）指令。
A FROM
B TO
C MOV
D SMOV
81．模拟量输出模块FX2N-4DA中，其识别码为（）
A 2010
B 3020
C 2100
D 3010
87、在模拟量输出模块FX2N-4DA中，其四个输出通道，可输出的标准信号，下面四个选项中错误的是（）
A -10V～+10V
B 0V～+20V
C +4MA～+20MA
D -20MA～+20MA
88、将模拟量输出模块FX2N-4DA的初始化寄存器BFM#0的值设为H3210时，下面四个选项中正确的是（）
A CH4关闭，CH3电压输出，CH2、CH1电流输出。
B CH4关闭，CH3、CH2电压输出，CH1电流输出。
C CH4关闭，CH3、CH2电流输出，CH1电压输出。
D CH1关闭，CH3、CH2电流输出，CH4电压输出。
89、PLC的工作环境温度一般为（）
A 0 ～ 650
B -100～ 550
C 0 ～ 450
D 0 ～ 550
90、为了保证PLC的绝缘性能，空气相对湿度一般应小于（）
A 75%
B 58%
C 85%
D 80%
91、PLC良好的接地可以避免偶然冲击电压的危害，其接地的基本原则是单点接地，接地电阻应小于（）
A 4Ω
B 40Ω
C 10Ω
D 2Ω
92、PLC执行程序时，对指令采取的执行方式为（）
A 逐条扫描执行
B 批量执行
C 同时执行
D 分批执行
初一英语单项选择题专练题及答案
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初中英语单项选择题附答案
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