Answer / arup

ZONE 0 --Areas in which an explosive gases atmosphere (An
explosive gas air mixture) is present continuously or
present for long time.
ZONE 1---An area in which explosives gas atmosphere is
likely to occur in normal operation.
ZONE 2--An area in which an explosive gas atmosphere is not
likely to occur in normal operation and if it does occur,
it will exist for a short period only.

What is the function of an exciter in a generator?

3 Answers  

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how we can calculate cable size of 230v,1 hp single phase motor ? panel to motor distance is 25 meter

4 Answers  

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i need previous entrence exam papers of nhpc.

0 Answers  

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What is the In door to Out door Sub Station.

5 Answers   L&T,

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100V supply is appllied between 500K Resistance bulb. for 1 kwh energy, how long time the bulb will glow? explain the calculating method.

3 Answers   Bhel,

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give me atleast four differences between circuit and network

0 Answers  

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35 Answers   Auko Tex, Integra, PowerTech, Shadhin Group,

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whay we used silica gel in Transformer

3 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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What principle and operation of frency drive

2 Answers  

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What is the type of feedback used in an op- amp schmitt trigger?

0 Answers  

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what is meant by neutral Ct of a transformer and how it connected in transformer

4 Answers  

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