渐缩喷管在设计工况下工作（ p 2 = pb ），如果喷管进口截面参数及背压保持不变，那么将此喷管截掉一段，其出口流速和流量将按（）变化。 -题库考试答案搜索网

渐缩喷管在设计工况下工作（ p 2 = pb ），如果喷管进口截面参数及背压保持不变，那么将此喷管截掉一段，其出口流速和流量将按（）变化。

单选题

2021-09-01 22:33

A、流速减小，流量增加
B、流速、流量都减小
C、流速不变，流量增加
D、流速减小，流量不变

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正确答案

C

试题解析

标签：青书学堂长春工程学院热力发电厂(专升本)

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