Answer / hari singh

to control input and output .

Answer / pratap

To control the output (or) to get the desired output.

Answer / n.bharat mohan

control systems are mainly designed to make any variation in the output will be reflected in the input so as to obtain a desired output.for example in our daily life if a action is performed daily then the action when done at the starting day when compared to first day will be improved similarly we can observe in other days also (vehicle driving,cooking,reading etc)

WHAT IS ND RELAY AND HOW DOES IT WORK?

2 Answers  

---

why do we prefer VCB over OCB? what are the advantages of Vaccum Ckt. Breaker over Oil Ckt. Breaker?

2 Answers  

---

How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.

0 Answers  

---

What is the ampereage of .75 ton Ac

1 Answers  

---

The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is

0 Answers   Caterpillar,

---

what is the major difference between LIBBP & HIBBP.. which one is most preferable..

0 Answers   ABB,

---

what happens if sf6ckt breaker gas pressure is high or low about the actual rating of gas pressure(5kg/cm2)

2 Answers  

---

Which has more losses, AC or DC??

4 Answers   Infosys, TATA,

---

what is the meaning of vcc

0 Answers  

---

at the time of starting back emf of a motor is zero.so how can it will start to run??

1 Answers  

---

Differentiate between ideal and non-ideal voltage sources?

0 Answers  

---

why we connect the capacitor bank in star , not in delta in any system

2 Answers  

---