端木老师 发表于 2020-1-2 09:03:47

《控制工程基础(专科)》武汉理工大学20春作业一

控制工程基础(专科)-作业一
1.[判断题] 系统框图也是控制系统的数学模型的一种形式。(    )
奥鹏作业答案可以联系QQ 761296021
    A.正确
    B.错误
    正确答案:——A——
2.[判断题] 在时域分析中,正弦信号常作为基本输入信号来分析系统性能。(    )
    A.正确
    B.错误
    正确答案:——B——
3.[判断题] 系统开环不稳定,则系统闭环也不稳定。(    )
    A.正确
    B.错误
    正确答案:——B——
4.[判断题] 一般来讲,系统在输入信号作用下的输出由瞬态响应和稳态响应组成。以此,在分析系统时,可以忽略瞬态响应。(    )
    A.正确
    B.错误
    正确答案:————
5.[判断题] 系统开环稳定,则系统闭环也稳定。(    )
    A.正确
    B.错误
    正确答案:————
6.[判断题] 控制系统中,蓄能元件的个数与系统微分方程的阶次一致。(    )
    A.正确
    B.错误
    正确答案:————
7.[判断题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">幅值穿越频率</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="21" height="26" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk06.files/kzgczk062719.png"></span>的大小,可反映系统的快速性能。<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.正确
    B.错误
    正确答案:————
8.[判断题] 系统的型次取决于系统开环传递函数分母的阶次。(    )
    A.正确
    B.错误
    正确答案:————
9.[判断题] 有无反馈是区分开环控制与闭环控制的重要依据。(    )
    A.正确
    B.错误
    正确答案:————
10.[判断题] 一阶系统的阶跃响应无超调,但有振荡。(    )
    A.正确
    B.错误
    正确答案:————
11.[判断题] 改变零、极点的数目和位置就是对系统进行校正。(    )
    A.正确
    B.错误
    正确答案:————
12.[判断题] 劳斯阵列中第一列元素中出现“0”,则系统可能临界稳定。(    )
    A.正确
    B.错误
    正确答案:————
13.[判断题] 系统的稳态误差与系统的结构、参数有关,与输入无关。(    )
    A.正确
    B.错误
    正确答案:————
14.[判断题] 对系统实施校正的目的是改善系统的性能。(    )
    A.正确
    B.错误
    正确答案:————
15.[判断题] <p class="MsoNormal" style="margin-left:0.0000pt; mso-para-margin-left:0.0000gd; text-indent:0.0000pt; mso-char-indent-count:0.0000; text-align:left; "><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">在对数幅频特性折线图中,为了保证系统的稳定性,其折线在中频段的斜率应大于</span><span style="font-family:Microsoft Yahei; font-style:italic; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="82" height="19" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk06.files/kzgczk064132.png"></span>。<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.正确
    B.错误
    正确答案:————
16.[判断题] 在频域分析时,系统抗干扰能力的强弱主要看中频段系统的输出情况。(    )
    A.正确
    B.错误
    正确答案:————
17.[判断题] 系统的频率响应是指线性系统在正弦信号作用下的稳态输出。(    )
    A.正确
    B.错误
    正确答案:————
18.[判断题] 不同的物理系统,其传递函数形式也不同。(    )
    A.正确
    B.错误
    正确答案:————
19.[判断题] Ⅱ型系统是指系统开环传递函数中有2个积分环节。(    )
    A.正确
    B.错误
    正确答案:————
20.[判断题] 最大超调量反映控制系统的阻尼特性。(    )
    A.正确
    B.错误
    正确答案:————
21.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">设积分环节的传递函数为</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="68" height="42" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk044681.png"></span>,则其频率特性幅值<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="51" height="22" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk044713.png"></span><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span>

    A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="20" height="42" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk044744.png"></span> <o:p></o:p>

    B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="27" height="42" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk044769.png"></span> <o:p></o:p>

    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="19" height="42" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk044794.png"></span> <o:p></o:p>

    D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="27" height="42" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk044819.png"></span> <o:p></o:p>

    正确答案:————
22.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">正弦函数</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="42" height="19" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk041535.png"></span>的拉普拉斯变换为<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="33" height="33" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk041574.png"></span> <o:p></o:p>

    B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="56" height="40" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk041599.png"></span> <o:p></o:p>

    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="54" height="39" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk041624.png"></span> <o:p></o:p>

    D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="53" height="39" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk041649.png"></span> <o:p></o:p>

    正确答案:————
23.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">当输入函数</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="51" height="22" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk043097.png"></span>,则下列系统中存在稳态误差的是<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.0型系统
    B.Ⅰ型系统
    C.Ⅱ型系统
    D.Ⅲ型系统
    正确答案:————
24.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">系统的传递函数</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="73" height="35" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk031006.png"></span>,则系统的增益为<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.5
    B.2
    C.10
    D.1    奥鹏作业答案

    正确答案:————
25.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">二阶系统当</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="36" height="22" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk034371.png"></span>时,则其单位阶跃响应将<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.有振荡
    B.无振荡
    C.有超调
    D.无振荡但有超调
    正确答案:————
26.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">传递函数</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="115" height="39" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk042604.png"></span>的极点为<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.-2,-3
    B.2,3
    C.-3
    D.-2
    正确答案:————
27.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">已知</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="92" height="39" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk03450.png"></span>当<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="35" height="17" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk03474.png"></span>时<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="29" height="19" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk03498.png"></span>的值为<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.10
    B.5
    C.0
    D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="16" height="14" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk03542.png"></span> <o:p></o:p>

    正确答案:————
28.[单选题] 在频域分析中,下列那种信号作为基本输入信号来分析系统性能(    )
    A.正切信号
    B.余弦信号
    C.正弦信号
    D.随机信号
    正确答案:————
29.[单选题] <p class="MsoNormal" style="text-align:left; "><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:10.5000pt; mso-font-kerning:1.0000pt; ">比例环节的频率特性相位角</span><span style="font-family:Microsoft Yahei; font-size:10.5000pt; mso-font-kerning:1.0000pt; "><img width="50" height="22" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk044106.png"></span><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span>

    A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="25" height="20" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk044137.png"></span> <span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="36" height="20" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk044163.png"></span> <o:p></o:p>

    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="18" height="20" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk044188.png"></span> <o:p></o:p>

    D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="40" height="19" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk044213.png"></span> <o:p></o:p>

    正确答案:————
30.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">已知</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="98" height="41" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk04982.png"></span>当<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="41" height="15" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk041006.png"></span>时<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="30" height="20" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk041030.png"></span>的值为<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.10
    B.5
    C.0
    D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="16" height="14" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk041074.png"></span> <o:p></o:p>

    正确答案:————
31.[单选题] <p class="MsoNormal"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="27" height="22" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk033771.png"></span>为单位阶跃函数,则<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="74" height="20" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk033803.png"></span>(    )<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="32" height="51" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk033834.png"></span> <o:p></o:p>

    B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="33" height="49" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk033859.png"></span> <o:p></o:p>

    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="14" height="38" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk033884.png"></span> <o:p></o:p>

    D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="33" height="45" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk033909.png"></span> <o:p></o:p>

    正确答案:————
32.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">当输入信号为</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="64" height="23" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk031496.png"></span>(A为常数)时,则下列系统中存在稳态误差的是<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.0型系统
    B.Ⅰ型系统
    C.Ⅱ型系统
    D.Ⅲ型系统
    正确答案:————
33.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">系统的传递函数</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="91" height="38" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk042113.png"></span>,则系统的增益为<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.0.5
    B.5
    C.3
    D.0.3
    正确答案:————
34.[单选题] 单位脉冲函数的拉普拉斯变换为(    )
    A.1
    B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="23" height="22" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk04473.png"></span> <o:p></o:p>

    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="24" height="22" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk04498.png"></span> <o:p></o:p>

    D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="37" height="18" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk04.files/kzgczk04523.png"></span> <o:p></o:p>

    正确答案:————
35.[单选题] <p class="MsoNormal" style="margin-left:378.0000pt; text-indent:-378.0000pt; mso-char-indent-count:-36.0000; text-align:left; "><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">设开环系统频率特性为:</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="132" height="43" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk035357.png"></span>,当<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="75" height="18" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk035382.png"></span>时,其频率特性幅值<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>
<p class="MsoNormal" style="text-align:left; "><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="53" height="22" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk035415.png"></span>(    )<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="23" height="36" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk035446.png"></span> <o:p></o:p>

    B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="20" height="20" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk035471.png"></span> <o:p></o:p>

    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="19" height="18" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk035496.png"></span> <o:p></o:p>

    D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="25" height="40" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk035521.png"></span> <o:p></o:p>

    正确答案:————
36.[单选题] 调整系统的增益对系统的(    )
    A.稳定精度和瞬态响应都有影响
    B.稳定精度有影响,瞬态响应无影响
    C.稳定精度和瞬态响应都无影响
    D.稳定精度无影响,瞬态响应有影响
    正确答案:————
37.[单选题] 在伯德图中反映系统动态能力的是(    )
    A.低频段
    B.中频段
    C.高频段
    D.无法反映
    正确答案:————
38.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">象函数</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="85" height="38" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk033202.png"></span>的原函数为:<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="123" height="19" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk033239.png"></span> <o:p></o:p>

    B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="102" height="19" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk033264.png"></span> <o:p></o:p>

    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="123" height="19" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk033289.png"></span> <o:p></o:p>

    D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="131" height="19" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk033314.png"></span> <o:p></o:p>

    正确答案:————
39.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">积分环节的频率特性相位角</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="51" height="22" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk032636.png"></span>(    )<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="25" height="20" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk032667.png"></span> <o:p></o:p>

    B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="33" height="18" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk032692.png"></span> <o:p></o:p>

    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="19" height="22" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk032717.png"></span> <o:p></o:p>

    D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="41" height="19" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk032742.png"></span> <o:p></o:p>

    正确答案:————
40.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">某系统的开环传递函数</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="172" height="42" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk032017.png"></span>,其开环对数幅频特性曲线在<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>
<p class="MsoNormal"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="35" height="18" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk032054.png"></span> 处的斜率为<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">(    )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="72" height="16" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk032091.png"></span> <o:p></o:p>

    B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="81" height="19" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk032116.png"></span> <o:p></o:p>

    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="77" height="17" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk032141.png"></span> <span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><o:p></o:p></span>

    D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="54" height="17" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgczk03.files/kzgczk032167.png"></span> <o:p></o:p>

    正确答案:————

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