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TATA Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the speed of current?

29 23001

Is it possible to get earth resistance value"zero" Ohm practically??? If yes,which type of earthing???

9 11541

what is bus pt and what is the function of it ???

8 25799

What is an exciter and how does it work?

7 88578

When charging a 20 MVA , 33kV/6.6kV transformer through regulated (0-6.6 kV or 0-33 kV) source on no load , what will be the maximum current drawn by transformer from source and what sould be the source capacity.

5 8935

What is the purpose of starter and choke in tube light?

9 107032

selection of conductor in different voltage?

1 2464

what is kVA

6 13477

why we are using DC supply in megger?

3 9095

how you can select circuit breaker for 2000kva transformer?

9 17832

what about the power of wattmeter at starting and loding?


Can anyone explain how the vector diagram of a transformer which doesn't have name plate be found whether it is Dy11/Dy5/Yd11 and so on?

4 9824

Draw a SLD of DG distribution up to main LT panel?


How to calculate the ups battery back up? give the formula.

15 101655

it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?


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TATA Electrical Engineering Interview Questions

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Write a program to maintain student’s record. Record should not be available to any unauthorized user. There are three (3) categories of users. Each user has its own type. It depends upon user’s type that which kind of operations user can perform. Their types and options are mentioned below: 1. Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record) 2. Super Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record, Delete Single Record) 3. Guest (Search Record [by Reg. No or Name], View All Records) When first time program runs, it asks to create accounts. Each user type has only 1 account (which means that there can be maximum 3 accounts). In account creation, following options are required: Login Name: <6-10 alphabets long, should be unique> Password: <6-10 alphabets long, should not display characters when user type> Confirm Password: Account Type: Login Name, Password and Account Type should be stored in a separate file in encrypted form. (Encryption means that actual information should be changed and Decryption means that Encrypted information is changed back to the actual information) If any of the above mentioned requirement(s) does not meet then point out mistake and ask user to specify information again. When Program is launched with already created accounts, it will ask for user name and password to authenticate. On successful authentication, give options according to the user’s type.


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