英语AUTOMATIC CONTROL SYSTEM指（）

[单选题]The fuel supply system to an automatic auxiliary boiler, will be automatically shutdown if the boiler （）A . salinity is abnormally highB . steam demand is too highC . water level is abnormally lowD . feedwater flow is low

[多选题] 自动发电控制（Automatic Generation Control，AGC）的控制目标是（）。A . 使全系统的发电出力与全系统的负荷保持平衡B . 将电力系统的频率误差调节到零，保持系统频率为额定值C . 使区域联络线上传输的净交换功率为计划值D . 在区域内机组间实行经济负荷分配，使区域运行成本最小

[单选题]Remote control means that the system is being controlled by the operator who is situated （） from the system.A . automaticB . localC . remoteD . manual

[单选题]（）is the management system to control the material consumed reduce inventory in the manufacture company.A .DPRB .LPRC .MRPD . D.ERP

[单选题]_______control system is one in which the control action is independent of the output.A．Feed backB．Negative feed backC．Close loopD．Open loop

[单选题]第一组A．n automatic system usually consists of a control system and an information system. A control system is a system which measures the condition of some entity and, with the information, governs the state of a variable; i.e., speed, temperature, pre

[名词解释] 连续式调速系统 continued speed control system

[填空题] 楼宇自动控制系统（Building Automatic System，BAS），BAS系统又可称为（）。

[名词解释] 点式调速系统 point type speed control system

[填空题] （）系统，是英语Supervisory Control and Data Acquisition的缩写，即监督控制和数据采集系统。它是一种以监督为基础的计算机控制系统。它能收集远处现场的操作信息，并通过通信线路将远方信息传送到控制中心进行显示和报告，控制中心的操作员监视这些信息，并能向远方的设备发布监督性质的命令。