Bissoy.com
Doctors Medicines MCQs Q&A

Which of the following is NOT the advantage of closed-loop control systems?

Which of the following is NOT the advantage of closed-loop control systems? Correct Answer They require lower forward path gains

Open Loop Control System

Closed-Loop Control System

In this system, the controlled action is free from the output

In this system, the output mainly depends on the controlled act of the system.

This control system is also called a Non feedback control system

This type of control system is also called a feedback control system

The components of this system include a controlled process and controller.

The components of this kind of system include an amplifier, controlled process, controller, and feedback

The construction of this system is simple

The construction of this system is complex

The accuracy of this system mainly depends on the calibration

These are accurate due to feedback

The stability of these systems are stable

The stability of these systems are less stable

Sensitivity high

Less sensitive

The optimization in this system is not possible

The optimization in this system is  possible

The transient response decay slowly

The transient response decay fast

The calibration of this system is difficult

The calibration of this system is easy

The disturbance of this system will be affected

The disturbance of this system will  not be affected

These systems are non-linear

These systems are linear

The best examples of this control system are automatic washing machine, traffic light, TV remote, immersion rod,  etc.

Examples of this kind of control system are AC, control systems for temperature, pressure and speed, toaster, and refrigerator.

Related Questions

Which of the following is/are the advantages of using a control chart for inspection? (i) A control chart indicates whether the process is in control or out of control. (ii) A control chart determines process variability. (iii) A control chart ensures product quality. (iv) Scrap or percentage reduction can be reduced by taking the necessary actions in time against the warnings indicated by control charts. (v) Control charts build up the reputation of the organization through customer’s satisfaction. (vi) The control chart can detect the unusual variations taking place in a process.
Which of the following statements with regard to Almond's characterisation of political system are correct? (i) All political systems have political structures. (ii) All political systems do not perform the same functions. (iii) All political systems are not multi-functional. (iv) All political systems are mixed systems in the cultural sense. Choose the correct answer from the code given below :
Based on the given para, answer the following question. Sensitivity considerations often are important in the design of Control Systems. Because all physical elements have properties that change with environment and age, we cannot always consider the parameters of the Control System to be completely stationary over the entire operating life of the system. For instance, the winding resistance of an electric motor changes as the temperature of the motor rises during operation. Control systems with electric components may not operate normally when first turned on because of the still-changing system parameters during warmup. This phenomenon is sometimes called “morning sickness”. Most duplicating machines have a warmup period during which time operation is blocked out when first turn on. A good Control System should be: (a) Very sensitive to parameter variations (b) Insensitive to parameter variations (c) Insensitive to input commands (d) Sensitive to input commands Which of the above are correct?
Microcontrollers are used in automatically controlled products and devices, such as automobile engine control systems, implantable medical devices, remote controls, office machines, appliances, power tools, toys and other embedded systems. By reducing the size and cost compared to a design that uses a separate microprocessor, memory, and input/output devices, microcontrollers make it economical to digitally control even more devices and processes. Mixed signal microcontrollers are common, integrating analog components needed to control non-digital electronic systems. What inference can be drawn from the above?
Which of the following landline telemetry systems are available? 1. Voltage telemetry systems 2. Current telemetry systems 3. Position telemetry systems 4. Resistive telemetry systems
Consider the following statements for the pneumatic and hydraulic systems: 1. The normal operating pressure of pneumatic control is very much higher than that of hydraulic control. 2. In, pneumatic control external leakage is permissible to a certain extent, but there should no leakage in a hydraulic control. Which of the statements given above is/are correct?
Examine the following statements about span of control and identify the ones which are true?
1. More task complexity requires narrower span of control.
2. Routine tasks can have greater span of control than exceptional tasks.
3. When tasks are dissimilar, then span of control can be larger.
4. Spans of control are generally narrower at the top and broader at the bottom of the hierarchy.
Consider a control unit generating the control signals. These control signals are divided into five mutually exclusive groups as shown below: Groups  G1  G1  G1  G1  G1 Control  Signals   3  7  10  12  2 How many bits are saved using the Vertical Micro-programmed instead of Horizontal Micro-programmed control unit?
The input signals to control systems are not known fully ahead of time, the characteristics of control system which suddenly strain a control system are:
Which of the following statements is/are incorrect? a)  According to Heckscher-Ohlin, mutually beneficial trade is based on the principle of absolute advantage. b) The law of comparative advantage indicates that each country will specialize in the production of those commodities in which it has the greatest comparative advantage or the least comparative disadvantage.