Hi, Next week Iam appearing RRB exam for section engineer. So help me to get modal question papers for this position. Iam very thankful to you. Whether question will be fully techanical format or general form. Please give me a details regarding this exam.

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An engineer measures the direct current resistance of a transformer using ohm meter. When he/she takes out one of the leads of the meter, spark comes.. Why ?? This effect is known as...

1 Answers   Saint Gobain,

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What conditions are required for transformer to operate at low frequencies ?

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why are the maintaine power factor and how can this control and this is how work.

0 Answers   Mukand,

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A 10 MVA, 66KV, 50Hz, Y-connected 3-phase alternator has synchronous reactance of 0.635 Ù. It is working at full load at 0.8 lagging p.f. condition. Find torque angle, neglect armature resistance.

0 Answers   VECL,

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while conducting an experiment why we connect the armature rheostat in maximum position and field rheostat in minimum position

1 Answers  

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Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega

0 Answers   Classic Infotech,

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advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor

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why firewall is build up between two transformer (220/11kv,50MVA)?what should be the firewall height?what is the clearance between firewall and transformer?

2 Answers   Siemens, Tous Stadt,

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What is the function of the generator exciter?

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why do we use bundle conductors instead of using single conductor of larger size for high voltage transmission?

7 Answers  

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how many types of ratings are there of transformer

5 Answers   Met Trade,

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