2024知到答案 自动控制基础 完整智慧树网课章节测试答案
第一章 单元测试
1、单选题：
About the positive feedback control system, which one of the following is correct? （ ）
选项：
A:There is no positive feedback control system in the physical world.
B:I don’t know
C:There is positive feedback control system in the physical world.
答案: 【There is positive feedback control system in the physical world.】
2、多选题：
The representative figure in the history of classical control theory includes. （ ）
选项：
A:H. W. Bode
B:Harry Nyquist
C:James Clerk Maxwell
D:H. S. Black
答案: 【H. W. Bode;
Harry Nyquist;
James Clerk Maxwell;
H. S. Black】
3、多选题：
In the following utilities, the closed-loop systems include （ ）.
选项：
A:Washing machine
B:Air conditioner
C:Van elevator
D:Microwave oven
答案: 【Air conditioner;
Van elevator】
4、单选题：
The trend of control development is （ ）.
选项：
A:High autonomy, High flexibility
B:High autonomy, Low flexibility
C:Low autonomy, Low flexibility
D:Low autonomy, High flexibility
答案: 【High autonomy, High flexibility】
5、单选题：
A system with more than one input variable or more than one output variable is known by what name? （ ）
选项：
A:Multivariable control system
B:Closed-loop feedback system
C:Open-loop feedback system
D:Robust control system
答案: 【Multivariable control system】
第二章 单元测试
1、单选题：
Consider the differential equation 
, where 
and 
is a unit step. The poles of this system are （ ）.
选项：
A:
B:None
C:
D:
答案: 【】
2、单选题：
The mathematical foundation of classical control theory includes （ ）.
选项：
A:Laplace transformation
B:All the options.
C:Differential equation.
D:Fourier transformation
答案: 【All the options.】
3、单选题：
Which of the following statements is NOT 对? （ ）
选项：
A:Laplace transformation turns the solution of differential equations into algebraic manipulations.
B:The transfer function can be applied to linear time-invariant system.
C:Transfer function model permits easy interconnection of physical systems.
D:When dealing with transfer functions, the initial conditions are assumed to be nonzero.
答案: 【When dealing with transfer functions, the initial conditions are assumed to be nonzero.】
4、单选题：
A cart of mass m = 1000 kg is attached to a truck using a spring of stiffness k =20,000 N/m and a damper of constant b = 200 Ns/m, as shown in the following figure. The truck moves at a constant acceleration of a = 0.7 m/
. The transfer function between the speed of the truck and the speed of the cart is （ ）.
选项：
A:T(s) = 
B:T(s) = 
C:None of the above
D:T(s) = 
答案: 【T(s) = 】
5、判断题：
The s-plane plot of the poles and zeros graphically portrays the character of the natural response of a system. （ ）
选项：
A:错
B:对
答案: 【对】