吉林大学
  1. 最小相位环节和非最小相位环节的对数幅频特性是一致的。

  2. A:错 B:对
    答案:A: 错
  3. 典型二阶欠阻尼系统的超调量是由阻尼比和自然频率共同决定的。

  4. A:错 B:对
    答案:A: 错 典型二阶欠阻尼系统的超调量主要由阻尼比决定,而不是由阻尼比和自然频率共同决定。自然频率影响的是系统的响应速度和振荡频率。
  5. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/dfa188560fc643f2800e021c9683f993.png

  6. A:错 B:对
    答案:错
  7. 系统的自由运动模态是由系统的极点决定的。

  8. A:错 B:对
    答案:对
  9. 典型二阶系统阻尼比大于1,则单位阶跃响应没有超调。

  10. A:错 B:对
    答案:对
  11. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/acad3664c69e43b9a62896367fa1773e.png

  12. A:错 B:对
    答案:对
  13. 线性系统的稳定性是由系统的极点决定的,与系统的零点无关。

  14. A:错 B:对
    答案:对
  15. 典型二阶欠阻尼系统的超调量是由阻尼比决定的。

  16. A:错 B:对
    答案:对
  17. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/64d3c1d78e2948daac8ab2faf0b50dba.png

  18. A:错 B:对
    答案:
  19. 某高阶系统存在主导极点,那么该主导极点一定是距离虚轴最近的一对共轭极点。

  20. A:错 B:对
  21. 零初始条件下线性系统输出的拉氏变换与输入的拉氏变换之比定义为系统的传递函数。

  22. A:对 B:错
  23. 系统的传递函数的形式与系统的输入和输出没有关系。

  24. A:错 B:对
  25. 典型二阶系统的性能指标公式可以适用于有零点的二阶系统

  26. A:错 B:对
  27. 系统的自由运动模态是由系统特征方程的根决定的。

  28. A:错 B:对
  29. 系统的自由运动模态是由系统的零、极点决定的。

  30. A:对 B:错
  31. 线性系统的稳定性是由系统特征方程的根决定的。

  32. A:对 B:错
  33. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/830baba2179e44ad85dc2f9d857b7173.png

  34. A:对 B:错
  35. 当系统的相角裕度为负时,则系统是不稳定的。

  36. A:错 B:对
  37. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/a2ba4ee0ad744cfdb8c0c1715858c154.png

  38. A:错 B:对
  39. 闭环传递函数的零点由开环前向通路传递函数的零点和反馈通路传递函数的极点组成。

  40. A:错 B:对
  41. 典型欠阻尼二阶系统保持自然频率不变,使阻尼比增大。下列说准确的是。(  )

  42. A:调节时间不变 B:超调变小 C:超调变大 D:超调不变
  43. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/2de934c13de846bf89a6d371461d4d60.png

  44. A:1.5 B:2 C:1 D:0.5
  45. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/181ca712ead143b28fc0eae14690eb7f.png

  46. A:image.png B:image.png C:image.png D:image.png
  47. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/55ad7244bbf04beeab44f655a3aba0e4.png

  48. A:b d均小于零 B:a大于零 ,d大于零   C:a大于零,b 小于零  D:b小于零,d 大于零 
  49. 在用实验法求取系统的幅频特性时,一般是通过改变输入信号的(  )来求得输出信号的幅值。

  50. A:频率 B:相位
    C:时间常数 D:稳定裕量
  51. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/f7b88874962b46d3b8426be831cec1e1.png

  52. A:image.png B:image.png C:image.png D:image.png
  53. data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGoAAAA1CAYAAACp+X61AAAF/UlEQVR4Xu2bZcgtVRSGn2uB3YEiBhYYP8RWFFQMFBXF7i4Uu7sFwQDzKiZ2YiGInVjY2IUdGNjJA2tgM5z7fWfmnjszW2b9uZf59j6z9/uetdfa71pnAr1lgcCELFbZL5KeqEy+BD1RPVGZIJDJMnuP6onKBIFMltl7VE9UJghksszeo3qiRo7ANMCRwFnA32N8+sLAqsANI19Bix+Yk0cdATwEPD8EXgcArwEPDzE2iyFtErU7sDewInA38FUgNjOwGjArMDfwO7AUsGt41DDATg3cAuwA/DLMhK6PaZMosTkeOByYA/grAWsu4HVg3nh2DXAq8E4FQLcHpgKurTCns0PbJsqj6Qtg2wEIXQjsD0wHPAisWRHF2YFLga0qzuvk8DaJmgH4OY6/ywKdw4Bz4v/bADcCawGbAQdPAkGTjHmAzwb8/Wlgnf/D8dcmURLwCLAM8DawCrAP4JGV2i5xBJ49gIg9geWAF8PjDgR+SsbdDhwNvNVJN6mwqDaJMj6dAlwBGPzXBU6L4yrdgin554BxKjWPtmeAJePhC8AhwKPJII++q4GnKmDSyaFtElWOT/sBj0Vabcb3B/ArcALwZmRxKYjLA5JzBvAA8CHwCfBvMuhi4Hrg8U6iX2FRbRE1KD6tEEfYP3GpNVZ9EwnFn0ARx4rtmdEdBZjmLwpcAuxb2vudwHFBfgVYuje0LaKK+LQ08EYJlgWAYwE9TNs04pDpeWHzA+sBV8WDLeMInaX0WXrc+kF499CvsKK2iDop4olHXHpUScBtgEnBc7EPY5FxZpNkX2aAG0dG52NJ80Kcpvl10/oK8DU3tGmi1OFMIEy3tZvjX1PsBYG1gSeBNQYcYdslafZ8wJkhEZma65lKTF8n8yRvpUhQmkN0Cr2paaLqbsM71YxxvKWfIUmm4yYdZbscOB34oO5LuzQvF6Jcp8AfCnw/BIDeyVYGzh9ibBZDciFKME0yvCepXqRxrQy0XmYMNM6l+uEgQjaPxMWjt6rdH1ln1Xm1xudElBtUWU+Vh0GbNvX3DjYeSc414VCpN9WvapZRCsW/6tzK45sgahFgocormzITPso1ZjVB1Cght3ZlCcRjZyzbMETal0f58jY/KyeirFmZkivcjhWjxNN9TQxBNk3Zy1gvBuwI1IlRrwA3NUVeW0Sl1V2Bui7ZsNLRXpFye+eyLqVdFESp5w1jXp5Nz70IT8rUC7eoGaNU7K0iN2JtEeXmlIks6llq92Kamkq56sO38XDxqAbvVBEV9UGbYd6vOK9zw9skSg+5F7gH8Jv9UqDjmi4AbFApTNLejd6KKiBuBKiGFF5ZZW6nxrZF1PTAycAxwKfAraGSC471JauyElmYJZGtx0iH5wR+i4pxCrDPbRtTTsra2iLK/gdBvCPKECrjKt/ekXYLQfbVBNkvAWNOuZ/P5he9z0rxTMAPA8ohxjR1xKytLaKMT2ZlXhgF8WNgj9DyBP4gwLqU5mXU+88gsPVKi4r2Vug1FhnLgu57wBLjNG12nsS2iCo6jAqALPBJhMXDcnxSPdC7ipJ7Cmox77wot+tRFhtTkyjnDqNUdJawNohS4vGbb3W2MC+o9wFmdR5hltBTm9TxtWyk7CYNmo2a5UYWj82iP7CzRIy3sDaIMj5ZDLwrWZwXTpMKBVW7itL45DAVBlUJNbzCrOqaKZoNWgIx4VBhT0v2FiZtbLFelbW1QZTeosJgXErNDFAvmy2JT8XfbWCR2GfjgcR+F2X6or/8iVAtFEsLk1yzRRX3rK1Jory0XgmsHlXcnQHjR2GWMU4MVaIMqgq3fRYSXJi1KRMNJSJ/vWHmV/4Fh8qEHUp2N2VtTRI1OUDpQQK+AWBHUmHTxg8JBnXJmoTYgGnZP+tEws3mQpRr1as8yoat2upxelLRJDM5X5TW5+ZElGApKwm8HbJjmcer+uG5rSM8ogXkRpTbHqbKq8rx44gw6sTH5EhUJ4BrehE9UU0jXvN9PVE1gWt6Wk9U04jXfF9PVE3gmp7WE9U04jXf1xNVE7imp/VENY14zff9B1Qq+zal16zpAAAAAElFTkSuQmCC

  54. A:image.png B:image.png C:image.png D:image.png
  55. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/41af1ef1a145422f8cdfbe2a2833a85b.png

  56. A:离散系统
    B:非线性系统 C:线性定常系统 D:线性时变系统
  57. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/bee08b2cf17f4dce9aa86b79fc2600ef.png

  58. A:上移
    B:左移 C:下移 D:右移
  59. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/9498761ad4274f23aa9fe44c81388ca4.png

  60. A:image.png接近系统的稳定性好 B:无答案 C:image.png相等系统的稳定性好 D:image.png相距越远系统的稳定性好
  61. 一阶系统的单位阶跃响应曲线的输出值为0.632时对应的t=      。

  62. A:3T B:2T C:T D:4T
  63. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/7a1f98fada9a4bdc915d4c75796207cb.png

  64. A:0.75 B:0
    C:3 D:♾
  65. 已知系统的开环传递函数如下,则下列哪个系统是稳定的,且在单位阶跃输入下稳态误差为零。(    )

  66. A:image.png B:image.png C:image.png D:image.png
  67. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/eec99186031149c682e4bd8f0eaed928.png

  68. A:image.png B:image.png C:image.png D:image.png
  69. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/229ce903e31d41529789e0b3f59835de.png

  70. A:image.png B:image.png C:与是否为单位反馈系统有关 D:image.png
  71. 在系统对输入信号的时域响应中,其调整时间的长短是与(  )指标密切相关。

  72. A:允许的超调量 B:允许的上升时间
    C:允许的峰值时间
    D:允许的稳态误差
  73. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/6ec1815c71ff454d9aad581225054c35.png

  74. A:0.707sin(t-105)    B:0.707sin(2t-105)  C:0.707sin(t+30) D:0.707sin(2t+30)   
  75. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/69c41bec50e14f8abacaf7dd189fdf62.png

  76. A:常数 B:零 C:不确定
    D:无穷大
  77. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/51f1d551e6704627a3ee553122c3bc33.png

  78. A:10 B:0.1 C:♾
    D:0
  79. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/982853c005ac45ecad699d3a6eed2539.png

  80. A:♾
    B:20 C:10 D:0
  81. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/5e545d691b894ab7a126ef0ed78d8876.png

  82. A:image.png B:image.png C:image.png D:image.png
  83. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/b8bcdf19d7414f57a0c084905711a543.png

  84. A:image.png B:image.png C:image.png D:image.png
  85. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/fb7049b7f88848339616ad52ad08cc2c.png

  86. A:image.png B:image.png C:无答案
    D:image.png
  87. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/a29daf5766a84c419553b76d216cdaf6.png

  88. A:6 B:0
    C:4 D:2
  89. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/0349b96ee9624731ad91b18f4ab6f072.png

  90. A:image.png B:image.png C:image.png D:image.png
  91. data:image/png;base64,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

  92. A:image.png B:image.png C:image.png D:image.png
  93. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/c7ed33370e2f4b6db6f102fd6d2cb66e.png

  94. A:a,b均大于零系统是稳定的。 B:a大于零,b小于零系统有两个正实部根 C:a,b均小于零系统是不稳定的 D:a大于零,b小于零系统有一个正实部根
  95. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/9815f39d21f04f4ab79b26eae1f4484f.png

  96. A:非线性系统 B:线性时变系统
    C:线性定常系统 D:离散系统
  97. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/fc22b9eec5b740f1a474cee530958c53.png

  98. A:3 B:1
    C:2 D:4
  99. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/4745b9dd67494778b6c5cc941ddd7c42.png

  100. A:M稳N不稳
    B:均为不稳定 C:M不稳N稳 D:均为稳定
  101. 采用负反馈形式连接后,则 (    )。

  102. A:系统动态性能一定会提高 B:一定能使闭环系统稳定 C:需要调整系统的结构参数,才能改善系统性能 D:一定能使干扰引起的误差逐渐减小,最后完全消除
  103. 开环对数频率特性的低频段决定系统的   。中频段决定系统的___。(   )

  104. A:型别,稳态误差
    B:抗干扰能力,稳态误差 C:稳态误差,动态性能 D:型别,动态性能
  105. 适合应用传递函数描述的系统是 (     )。

  106. A:单输入,单输出的线性时变系统 B:单输入,单输出的线性定常系统 C:非线性系统 D:单输入,单输出的定常系统
  107. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/63e531a4f33d47218ecbd73d053cc79e.png

  108. A:线性定常系统 B:线性时变系统 C:非线性定常系统 D:离散系统
  109. data:image/png;base64,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

  110. A:image.png B:image.png C:image.png D:image.png
  111. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/da5906cb9e8c4fd49bd2f7419431032b.png

  112. A:0,0.5,-1 B:1,1,0
    C:0,0,0 D:0,1,-2
  113. 滞后环节一定条件下可以近似为。(   )

  114. A:微分环节 B:比例环节
    C:惯性环节 D:积分环节
  115. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/dd321befb61543c58585ce74067db287.png

  116. A:不包围 B:包围
    C:逆时针包围 D:顺时针包围
  117. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/aa43a183bb8448e0bbc331dae506ef9c.png

  118. A:0.75 B:♾ C:0 D:3
  119. 已知系统的开环传递函数为,则该系统的开环增益为(       )。

  120. A:1000 B:不能确定 C:20 D:100

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