In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

0 Answers  

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what is the significance of tan delta testing?explain the theory?

7 Answers  

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what is the working principle of three point starter of dc motor?

1 Answers   Ashok Leyland, Cap Gemini, Infosys, Just Dial,

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Which motor connection is preferable star-delta or delta-star?

0 Answers   IOCL,

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Why we are checking the vector group & turn ratio of Xformer while PM?

1 Answers  

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WHY WE NEED AUTO TRANSFORMER,WHERE WE CAN USE?

5 Answers   L&T,

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what is the difference between brushed alternator ,brushless alternator & permanent alternator ?

1 Answers  

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Difference between split ac and cassete ac?

1 Answers  

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why using in cable mm square which is mm & which is square why using mm & square.

1 Answers   Airtel,

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Transformer cores are laminated in order to A simplify its construction B minimize eddy current loss C reduce cost D reduce hysterisis loss

0 Answers  

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What happens when the field of an alternator connected to infinite bus is suddenly removed?

3 Answers  

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why earth fault current is always less than the o/c

2 Answers  

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