Interview questions

Quality Engineer - Electrical interview questions – page 5

165 questions. Tap “Show answer” to check yourself.

  1. When a field input to plc is coming from 400 to 600 meters and the input is in 24 V DC? So signal cable of which cross section i should select for proper signal to plc?

  2. In thermocouple could we use the lug for termination or not,Thermocouple is any time,I am currently concerned with K type.please let me know if anybody know

  3. Is there any chance to get shock from the transformer oil at the time of maintenance due to its dielectric property. . ?

  4. What is unit of inductance

  5. What will happen to give a dc supply in ac motor?

  6. How much excitation voltage required to generate 1mw power?

  7. What are the steps for Testing of 6.6KV HT Panels?

  8. Name the earthings?

  9. How we can calculate the consumption in kwh of motor on basis of kw @100% load, @50% load & @ no load.

  10. WHAT IS B & C CLASS SURGE PROTECTION AND WHAT IS DIFFERENCEBETWEEN B & c CLASS SP

  11. How do you select a cable size(cu and Al) for a particular load

  12. What is difference between 3.5 core and 4 core cable

  14. What are the special cables required for explosion proof wiring?

  15. What type of cables are used for f&G systems and detectors,what is the standard colour?

  16. Why Power generation in India is at 50Hz while in Americaits 60Hz so is there any advantage/Disadvantage of this ?

  17. In India,we use 230V,50HZ,where as many other countries use 110V,60HZ what r d advantages and disadvantages of each of them?

  18. Why voltge arev transformed in to 132KV/66/KV/33KV like that

  19. Hi can you give any body fault level calculation, generatorfault level calculation,transformer fault level calculationfor system fault level with equation? i have 3.3kvgeneration voltage three gas gen sets, one is 1.9MW,2nd is2.5MW,& 3rd is 3.8MW & i have 11 kv generation voltage onegas gen sets is 3.8MW, we are step up to 22kv by transformer

  20. How to calculate the no. of earth pits required for an electrical installation?

  21. Any meter avilable for measureing the Transformer Losses. ( like Voltmeter for voltage & ammiter for currenr )if yes plz give the make & supplier address, Email, Phone number.

  22. How to calculate the cable size for LT and HT power cableswith detail explanation?

  23. Why we use negative 24vdc to a proximeter

  24. What are the Academic Facilities of your choosen college/university ?

  25. WHY AREWE USING THE 3 1/2 CORE CABLES IN POWER TRANSMISSION

  27. What is your goal and how it will help our organization?

  28. Tell me about a pleasure trip in ur life?

  29. What is meant by Active and reactive power?

  30. What is harmonic distortion?how it minimise?

  31. What is the difference between compensation and extension cable.

  32. SR flip flop is basically which type of multivibrator?

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