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.

what are the method of testing of transformer??

2 Answers   NCC,

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how to calculate the current carrying capacity of cable

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8 Answers  

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0 Answers   Quest,

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how do you reduce the skin effect

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What is Earth Fault and Over current Fault.

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why abcd parameters are called as transmission parameter?

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If the 11 KV supply is fail. what will happened with it's breaker if it is supplay to the 11KV motor?

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What is a parabolic signal?

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what is the difference SCR & TRIAC?

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