更多“图示桁架中,杆2的轴力为()kN [图]A、10B、-10C…”相关的问题
第1题
如图所示的起重机平面简图,A端为止推轴承,B端为向心轴承,其自重为P1=40kN,起吊重物的重量为P2=100kN,试求A、B端的约束力。
图中水平杆件受力处于()状态。
A. 受拉
B. 受压
C. 内力为零
D. 不确定
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第2题
图示桁架,零杆(不含支座)的个数是( )。 [图]A、2B、3C、4D...
图示桁架,零杆(不含支座)的个数是( )。
A、2
B、3
C、4
D、5
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第3题
下图桁架中杆1的轴力为P。 ( ) [图]...
下图桁架中杆1的轴力为P。 ( )
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第4题
图示桁架中,杆2的轴力为()kN [图]A、[图]B、[图]C、[图]D...
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第5题
Civil engineering is arguably the most diverse field of all tire engineering branches. As the population of the world increases and the technology becomes more advanced, the need for better infrastructure increases around the world. In order to manage the construction process in each sector, the field of civil engineering has been divided into various sub-disciplines on the basis of applications.
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第6题
Geotechnical engineering is the branch of engineering dealing with the analysis, design and construction of foundations, slopes, retaining structures and other systems that are made of or are supported by soil or rock. Technical information obtained from the sciences of geology, material testing, and hydraulics is applied in the design of foundations and structures to ensure safety and economy of construction.
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第10题
某信源由A、B、C、D、E五个信息符号组成,发送A的概率为1/2,发送其余符号概率相等,且设每一符号出现是相互独立的,,则平均信息量为
A、3.5比特/符号
B、3比特/符号
C、2比特/符号
D、4比特/符号
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