A: Control subject
B: Given conditions and objectives
C: Controlled object
D: Control system
举一反三
- Closed-loop control system is an automatic control system. Open-loop control system is not an automatic control system.
- Which of the following descriptions is wrong about the control of an air conditioner?_____ A: The control position can be divided into remote control and local control. B: In local control, the automatic control system also needs to work. C: If the remote control doesn't work, the air conditioner won't work. D: In case of control system failure, manual control mode can be adopted.
- Which of the following is NOT thought to be the power of the national government in the federal government system? A: control of federal money B: control of interstate commerce C: control of national defense D: control of state criminal and civil laws
- Remote control means that the system is being controlled by the operator who is situated () from the system.
- According to the characteristics of the control system, CNC machine tools can be divided into ( ),( ) and contour control machine tools. A: Point to Point Control B: open-loop control C: line motion control D: closed-loop control
内容
- 0
In the structural transfer block diagram of a control system, the unit placed in the feedback channel is: A: Measurement unit B: Regulating unit C: Control object D: Executing agency
- 1
keeping the homeostasis<br/>of the internal environment depends on the () A: Non-automatic<br/>control system B: Negative<br/>feedback control system C: positive<br/>feedback control system D: Feed-forward<br/>control system E: nervous<br/>and endocrine regulation.
- 2
The implementation of multiple exchange rate system belongs to the type of ( )in exchange control. A: quantity control B: price control C: direct control D: indirect control
- 3
Which of the following is the correct signal flow for an analog multi-room audio system?() A: Source,Volume Control,Speaker,Amp B: Source,Amp,Volume Control,Speaker C: Amp,Source,Volume Control,Speaker D: Speaker,Amp,Volume Control,Source
- 4
The main difference between fuzzy control system and common computer digital control system is that fuzzy controller is used in the fuzzy control system.