Answer / kalirajan.n

servo is an automatic device which uses error-sensing
feedback to correct the performance of a mechanism. The term
correctly applies only to systems where the feedback or
error-correction signals help control mechanical position or
other parameters. For example an automotive power window
control is not a servomechanism, as there is no automatic
feedback which controls position—the operator does this by
observation. By contrast the car's cruise control uses
closed loop feedback, which classifies it as a servomechanism.

Answer / subbu anna

A servomechanism, or servo is an automatic device which
uses error-sensing feedback to correct the performance of a
mechanism. The term correctly applies only to systems where
the feedback or error-correction signals help control
mechanical position or other parameters. For example an
automotive power window control is not a servomechanism, as
there is no automatic feedback which controls position—the
operator does this by observation. By contrast the car's
cruise control uses closed loop feedback, which classifies
it as a servomechanism.

Servomechanisms may or may not use a servomotor. For
example a household furnace controlled by thermostat is a
servomechanism, yet there is no closed-loop control of a
servomotor.

Answer / er. ankush miglani

first of all it is servomechanism not sero mechanism
it s used to serve any system an error free mechanism
it uses a feedback signal for the correction of the output
signal'

Answer / dhaval

trasformer is a static device which have no rotating part
and a device which used to step up and step down the
voltage from high value to the low value.

which have higher efficiency transformer or induction moter

8 Answers   BARC,

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what is metering cum synchronizing panel and how it is used?

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why we dont store the ac power in battery?

1 Answers   TCS,

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hi this toufik here. i am doing my b.e.degree.now i am in final year and supposed to do a project in this year so i thinking to control the buchholz relay using software base means checking the status of transformer oil using microcontroler, plc or scada. so can i do so...??? alz suggest me...

2 Answers  

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Draw the equivalent circuit of crystal oscillator?

0 Answers  

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how can you prove that in CE configuration a transistor has 180 degree phase shifted output

5 Answers   Bhel,

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how does high earth to neutral voltage affect electronic equipment?

0 Answers  

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If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is only 440V.

16 Answers   BSNL, DOS, EFS, HMT, L&T, TCS, ThyssenKrupp,

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After fault clearing in Tr line, whether the Metering core of CT is comes to normal condition from saturation region & its works as a normal condition?

1 Answers  

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how does it help for selection of a transformer.

1 Answers   Reddy Labs,

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how induction motor starts?

4 Answers   JSL,

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why the LED of my electrical meter glows even after the line has gone. what actually the reason?

3 Answers  

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