A system that consists of several components connected to perform a specific function in which the output is controlled by input is known as a Control system.
There are two types of systems:
- Open-loop control system:
- Advantages:
- Simple and economical
- Easier to construct
- Stable
- Disadvantages:
- Inaccurate
- Changes in the output are not carried automatically
- Advantages:
- Closed-loop systems:
- Advantages:
- Accurate
- Less affected by noise
- Disadvantages:
- Complete and costlier
- Feedback reduces the overall gain of the system
- Stability is a major problem.
- Advantages:
Types of control systems
- Linear system
- Non-linear systems
- Time variant system
- Time invariant system
- Linear time-variant system
- Linear time-invariant system
Control System MCQs
What is a traffic light system?
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Select the correct definition of Loop gain among the following.
Sensitivity to parameter ________ in feedback system.
State whether True or False: A feedback control system is a high pass filter.
The damping ratio of a system where the phase margin is 45 degrees is?
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The output of control is given to?
The term “controller” denoted?
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To which of the following does a major part of the automatic control theory apply?
To which of the following is the state-space method applicable?
Total types of a control system are?
Total types of static error constants are?
Total types of time-domain analysis are?
What do the peak overshoot and damping ratios measure?
Regenerative feedback indicates feedback with?
What is meant by zero initial condition for a system?
What is the automated control system called where output is variable?
What is the control system known as where the system works under unknown random actions?
What is the gain margin of the second-order system?
What is the system called where output is varying with time?
What is the transfer function used for finding?
What should be the damping ratio for a desirable transient response of a second-order system?
Where is sampling necessary?
Which of the following is higher in the closed system than the open-loop control system?
Which of the following system conditions is generally preferred?
Which of the following will be obtained by equating the denominator of the transfer function to 0?
Identify the definition of maximum overshoot.
Among the following factors, identify the factors on which sensitivity of the closed-loop system to gain changes and load disturbances depend.
Among the following, identify the controller which can handle fast process load changes.
Among the following, identify the most powerful controller.
Choose the correct definition of eigenvalues of a matrix.
Choose the correct option among the following. An originally stable system can become unstable or more stable due to feedback.
Choose whether the following statement is true or false: Effects of noise and disturbance on system performance can be reduced by feedback.
Choose whether the following statement is true or false: The mechanism of control of body temperature is a non-feedback system.
Identify among the following which is used to obtain output position in a position control system.
Identify one of the possible effects of a control system with excessive noise.
Identify the advantages of a closed-loop control system.
Identify the correct feature of the minimum phase system.
Identify the correct formula for the transfer function of positive feedback.
What is the damping ratio, if overshoot is excessive?
Identify the disadvantages of closed-loop control systems.
Identify the element among the following which is not used in an automatic control system?
Identify the features of the test signal.
Identify the impulse response of an RL circuit.
Identify the incorrect feature of a good control system.
Identify the nature of the bandwidth suitable for a good control system.
Identify the output of feedback control among the following.
Identify the term which is a node having both incoming and outgoing branches.
Identify the term which is a point representing a variable or signal.
In which of the following systems can multiple signals be used?
In which of the following systems is an effect of feedback on sensitivity minimum?
