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JLL Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the rating of your capacitor bank at your company.

36 75164

What is the max demand on your transformer and your company?

10 50257

Do you know how to measure the earth resistance? if so explain it

42 152132

How do you maintain the earthing resistance?

13 42796

what is the difference between earth and neutral?

56 145681

What is the Difference Between MCCB & ACB & VCB

58 292065

battery capacity use of made?

2076

What are the Safety measures in central chiller plant? Explain them?

22 60513

how do you calculate IKW(consumption per TR) in HVAC?

27 138674

Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only.

12 36725

E.B sending end to receiving end 33kv ug cable laid 8Km,receiving end to ss1,ss2,ss3,ss4 all are Approx 800 Mtr,can go for 33KV to 430V or 33kv to 11kv in receiving end and 11kv to 430 near ss ,which one is good for technically and economically.

1 3419

How to calcualte the total number of cells required for particular UPS of some X KVA with 3 and 5 hours back-up?

1 2649

why the transformer neutral give to the earth ?

2 3486

What is UPS and How do you maintain the UPS Maintenance? Brief Description on UPS maintenance.

2096

What is difference between MCB,MCCB,ELCB and RCCB? Brief description and why RCCB is costly?

3 8544

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