railway exam in asst loco pilot old test paper

25 Answers   Indian Railways, Loco Pilot, RRB, Southern Railways, TATA, Vimal,

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ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

0 Answers  

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why it is mentioned as 8/10 mva transformer why not directly 8mva or 10mva transformer. please explain me the full detailed reason.

4 Answers   Qatar Gas,

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why ct ratio always rated 5.

1 Answers  

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how to reduce the power consumption in office ?

6 Answers  

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Do you know the overhauling of a motor?

12 Answers   EdCET, Mecon,

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which types of relay used in acb and vcb?

0 Answers   IBM,

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low voltage distribution is done by a)3 phase 3 wire b)3 phase 4 wire c)single phase

3 Answers  

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We have two Al.busbars each of size 125mm*10 mm connected in parallel.To increase the current rating ,can we connect third busbar of size 100mm*10mm in parallel to existing two busbars?In my opinion ,if we connect busbars of different sizes in parallel,then the busbar of lowest size will take much current.So this type of paralleling should be avoided .Am I correct?

1 Answers   PDP Steel,

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what's the requirement of Dy11d0 connection of 3 phase transformer?what's use of it?

0 Answers   Thermal Systems,

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what is positive , negative & zero equivalent system resistance

0 Answers  

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I WANT BHEL PREVIOUS QUESTION

0 Answers   Bhel,

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