可学答题网 > 问答 > 船舶电气与船舶安全题库
目录: 标题| 题干| 答案| 搜索| 相关
问题

A butterfly valve consists basically o


A butterfly valve consists basically of a disc pivoted across the bore of a ring body having the same radial dimensions as the pipe in which it is fitted.According to the above sentence, which of the following statements is not true?()

  • AThe diameter of a disc is the same as the outer diameter of the pipe
  • BWe can infer that the valve is opened or closed by rotating the spindle
  • CA butterfly valve comprises a disc and a ring body
  • DThe profile of the butterfly valve is a ring body
参考答案
参考解析:
分类:船舶电气与船舶安全题库
相关推荐

1、our network consists o

our network consists of a single Active Directory domain. All network servers run Windows Serve...

2、our network consists o

our network consists of a single Active Directory domain. You have a DHCP server that runs...

3、The network consists o

The network consists of two separate autonomous systems as shown below:You need to configure R...

4、our network consists o

our network consists of a single Active Directory domain. All servers run Windows Server 2003&e...

5、Dirt lodged on the nozzle valve seat o

Dirt lodged on the nozzle valve seat of a fuel injection nozzle will cause()Aerosion and cratering of the nozzle orificesBfuel leakage into the nozzle drain lineCfuel leakage before and after injectionDinsufficient fuel delivery though that nozzle

6、You network consists o

You network consists of a single Active Directory domain. All domain controllers run Windows &e...