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英语AUTOMATIC CONTROL SYSTEM指（）
- A、控制网络
- B、自动控制系统
- C、控制面板
- D、控制盘
参考答案
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以下专业词汇缩写与中英文单词释义不对应的是( )。
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()on a ship transmits power from the engine to the propeller.
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In ______ the control action is independent on the output.A.a closed loop control systemB.an open loop control systemC.a boiler control systemD.a steering gear control system
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单选题This arrangement is （） if the elements are directly connected to one another and the control action takes place without human involvement.A
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单选题Moisture should be kept out of an R-12 system because it tends to cause （）.A
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all of the above
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单选题Remote control means that （）.A
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the system is controlled automaticallyD
all the above
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单选题After the trouble of the automatic control system has been completely eliminated, assistance is （） required.A
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stillC
no longerD
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单选题The flame safeguard control system of a large automatic auxiliary boiler will provide fuel shut off in the case of high （）.A
waterB
voltageC
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steam pressure
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单选题In （） the control action is independent on(of) the output.A
a closed loop control systemB
an open loop control systemC
a boiler control systemD
a steering gear control system
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单选题You need to enable hibernation support for a computer that runs Windows XP Professional. What should you do?（）A
From Control Panel, configure the Power Options. B
From the System properties, configure the Data Execution Prevention settings. C
From the Services console, set the Startup type for the Human Interface Devices service to Automatic. D
From the Services console, set the Startup type for the Uninterruptable Power Supply service to Automatic.
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extinguish the fire which triggers itB
limit the spread of fire and control the amount of heat producedC
protect people in the areas which have sprinkler headsD
alert the crew to the fire
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Set a threshold for the default system-defined moving window baseline.B
Add directives to the Automatic Database Diagnostic Monitor (ADDM).C
Modify the profile for the targeted users for which control needs to be imposed.D
Implement the database resource manager to add the SWITCH_IO_REQS and SWITCH_GROUP directives.
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单选题Control valves of a CO2 system may be located within the protected space when（）.A
it is impractical to locate them outsideB
there is also a control valve outsideC
the CO2 cylinders are also in the spaceD
an automatic heat-sensing trip is installed
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