what is the operation of Control Module(CM),MONITOR Module(MM), MONITOR Module DUAL (MM2),Signal Module(SM),Isolator Module(IM), please some one reply me.. the operation and application of these in FIRE ALARM SYSTEMS...

1 Answers  

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iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?

0 Answers   RRB,

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Why mostly GT(Generating Transformer)has only Ynd1 Vector Group?

1 Answers   Essar,

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Design and explain a circuit to produce an unregulated full wave D.C supply.

1 Answers  

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what are thw types of turbines use in biogas plant?

0 Answers  

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How to take of Transformer oil Break down voltage test?

2 Answers  

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why dont we use the same pylon to carry 400 kv plus 220kv and 33 kv ?

2 Answers   Focus, Focus Energy,

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Instead of single phase(220), if apply Phase to phase supply (eg: for lighting fixture). what will be the power formula? what will be the volt and current value? please explain me with some example.

1 Answers  

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How to calculate the Meter constant for the given Meter (by using any formula)

4 Answers   HCL, Viva,

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When induction motor is started,we see all other electrial appliances connected on the same supply are dimmed out for some moment why?

4 Answers  

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Tell the details of the precommissioning tests that are performed on distribution transformer, power cable and switchgear (11kv).

1 Answers   Reliance,

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why u want to work in sail/ntpc as u r already in an it company where life is good, good environment no much tensions etc?

6 Answers   Sail,

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