Just Crack Interview

Electrical interview questions – page 22

1,095 questions. Tap “Show answer” to check yourself.

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  1. How will you determine the short circuit capacity of a network

  2. WHY MOSTLY BATTERY VOLTAGE IS IN MULIPLE OF 2 LIKE2V,4V,8V,16V,18V....

  3. ALSO ACs HAVE TWO POWERS (IN WATTS) WRITTEN ON THEIR NAME PLATES WHAT DOES EACH MEAN?

  4. Why a ballast and ignitor is required in MH and other lighting fixtures

  5. What is infinite Busbar?

  6. IN AN OSCILLOSCOPE TWO COUPLING IS THERE, THAT IS AC & DC COUPLING, WHERE DO WE USE THESE COUPLINGS ?

  7. What is principle of DC machines?

  8. What is the use of the shield wire and how is the connection at both the ends of a shield wire?

  9. What is the all safty name of diesel genrator?

  10. How can i check vortex shedder bar it is ok? if there is ohms condition are shown correct?

  11. What is a DLC?[just dont reply its a Dual loop controller!] Plz do Explain the advantage of DLC over PLC?

  12. How bucchos relay works in a transformer

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  14. Why root three is used and how its comes in three phase power system?

  15. Can any body explain the operation system of MVWS(May be related to water and fire hydraunt system)?

  16. What should be the earth pit resistance value?

  17. Explain working of differential protection for a transformer?

  18. What is the difference between concentrated winding and Distributed winding in motor?

  19. Protection used in transformer ?

  20. How much volt electricity is required to operate an electrical engine & how does it works.

  21. The max. power will be transferred if ??a) sending end vol. is high b) receiving end v is high c)??.. d) corona loss is least

  22. When we connect the capacitor banks in series with the circuit?

  23. Whether radar level transmitter is applicable for the open tank

  24. Difference b/w series&parallel

  25. Why motor starting current is High ?

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  27. With the help of drive can we run the 50hz motor on 100hz,what will be its effect.

  28. What is the safety protection? Name the protections of Transformer?

  29. How can we decide where we have to DYn11 or other vectorgroup transformer

  30. What is difference between 3 wire and 4 wire RTD sensor?

  31. How many frequent start/stop operation possible in case ofHT MOTORS.

  32. Which type of A.C motor is used in the fan (ceiling fan, exhaust fan, padestal fan, bracket fan etc) which are find in the houses ?

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