汽机试题

四、计算题（15分）<br/>1、（5分）<br/><br/>2、（5分）<br/>&nbsp; &nbsp;3、（5分）<br/><br/><br/><br/>五：绘图题（5分）<br/>画出两台性能相同的泵串联工作时的性能曲线，并指出串联工作时的工作点。<br/><br/>六：论述题（10分）<br/>中间再热机组有何优、缺点？<br/><br/>一、 &nbsp;选择题答案：1：A &nbsp; &nbsp;2：D &nbsp; &nbsp;3：D &nbsp; &nbsp;4：C &nbsp; &nbsp;5：B &nbsp; &nbsp;6：D &nbsp; &nbsp;7：B &nbsp; &nbsp;8：A &nbsp; &nbsp;9：C<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;10：C &nbsp; &nbsp;11：C &nbsp; &nbsp;12：A &nbsp; &nbsp;13：B &nbsp; &nbsp;14：C &nbsp; &nbsp;15：C &nbsp; &nbsp;16：A &nbsp; &nbsp;17：A<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;18：D &nbsp; &nbsp;19：A &nbsp; &nbsp;20：D &nbsp; &nbsp;<br/>二、判断题答案： &nbsp;1V &nbsp;2X &nbsp;3 &nbsp;V &nbsp;4V &nbsp;5V &nbsp;6X &nbsp; &nbsp;7X &nbsp; &nbsp;8X &nbsp; &nbsp;9X &nbsp; &nbsp;10V &nbsp; &nbsp;11V &nbsp; &nbsp;12X &nbsp; &nbsp;13X &nbsp; &nbsp;14V &nbsp; &nbsp;15V &nbsp; &nbsp;16V &nbsp; &nbsp;17X &nbsp;18X &nbsp; &nbsp;19X &nbsp; &nbsp;20V&nbsp;&nbsp;<br/>