What is the Diff. btw Fire Alarm System & VESDA System??????

1 Answers   Emerson,

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Why is the frequency not changed during transformation of electrical energy in a transformer?

0 Answers  

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1. A bomber drops a bomb from an aircraft flying at 2000 km/hr. at an altitude of 7km. The speed at which the bomb will strike the earth would be

0 Answers   KNJ,

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redundant connection in contactor?

0 Answers   Emerson,

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why buchholz relay is kept on inclined position and why it is cover??

1 Answers   GSECL,

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which type of motor is used in lift ?

7 Answers  

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How to select the gauge of wire for winding of motors? How to select number of turns for winding of three phase induction motor?

0 Answers   npcc,

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use of automatic voltage regulator & input voltage of it?

1 Answers  

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why transformer donot allow the dc?

17 Answers   ONGC,

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for compensate 315mh inductance ,how many capaciance required?

1 Answers   Mitsubishi,

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what is ohms law?

7 Answers  

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wath is this mining of bts

1 Answers   Nokia, TATA,

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