bsnl tta exam question

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can we use the 110 v primary Tr 240 v secondary step up Transformer as reverse 240 pri 110 sec

3 Answers   Hyundai,

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difrence bitwin boost charge and float chargeing

1 Answers  

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How to dimensioning SDCCH, LAPD and CS7 signaling on GSM?

1 Answers  

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Why is it that polarization index type test is required for MV and HV motors and not for LV motors?

3 Answers   La-Gajjar Machineries, Qatar Airlines,

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What is the difference between in Fourier series and Fourier Transform. and please tell me the difference between both of them and the why we use them in communication system?

0 Answers  

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Electricty is generated at around 16kV, then step up to 220kV for transmission then steped down to power transformers then DTs and then through the LT n/w it reaches the consumer end. At the consumer end 230V supply is required. So, why is electricity not generated directly at 230V and transmitted?

4 Answers  

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What is the safety factor is to be consider while selecting the switchgear and protection for electrical system

1 Answers  

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What will Happened if the polarity of CT is changed?

13 Answers  

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What is rotor angle stability?

2 Answers  

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

15 Answers   Cushman Wakefield, Ethio Telecom, Exide, MacLellan, Morgan Stanley, TATA,

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Define delay time.

0 Answers  

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