- The statement “A system need not be physical” is
a. True because systems can be either physical or non-physical.
b. False because statement is ambiguous.
c. False because a system must be physical.
d. True because there is no physical system. - A control system
- Is Dynamic
- Is Static
- Can be either Dynamic or Static
- Trivial
- A good control system
- is reliable and economical
- meets the specifications
- is accurate, stable and robust
- all of the above
- The _________is the quantity or condition that is varied by the controller so as to affect the value of the controlled variable.
- control signal or manipulated variable
- error signal
- reference signal
- controlled variable
- Normally, the _____is the output of the system.
- control signal or manipulated variable
- error signal
- controlled variable
- reference signal
- Following are the major configurations of control systems:
- open loop and closed loop systems
- positive feedback and negative feedback systems
- cascade and cascode systems
- positive feed forward and negative feedback systems
- Those systems in which the output has no effect on the control action are called _____control systems.
- open-loop
- closed-loop
- unstable
- non-linear
- Two major measures of performance are these:
- The transient response and the steady-state error
- The transient response and the stability
- The stability and the steady-state error
- The stability and the sensitivity
- Which is TRUE for Open-loop systems?
- They have small bandwidth
- They have high effect of non-linearities and distortions
- They are Stable in nature.
- all of the above are true
- Which is NOT TRUE for Open-loop systems?
- They are highly sensitive to disturbances
- They are stable in nature
- They have reduced effect of non-linearities and distortions
- They are highly inaccurate and unreliable
