plz post electrical technology lab viva questions with answers ....etc

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i am btech 3 yr student want to give ppt on mobile number portability plese send me details on mobile number portability and some ppts please its urgent ....etc

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What happens if DC supply is applied to the transformer?

If DC supply is given to the transformer, the current will not change due to constant supply.
So the mutual induction is not possible and thus the transformer will not work.
The primary winding resistance is very small.
For DC supply, the primary winding inductive reactance is zero.
So the primary will draw very high current for dc supply, consequently extra heat generated and thus the transformer get damaged.
Hence the DC supply should not be applied to the transformer.
What is ....etc

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what is the recend trend in (ac machines) electricl machines II??
show the improvement in the ac machines from begining to now??????????? ....etc

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viva questions and answers for electrical measurements lab

Measurement and Instrumentation Lab - VIVA QUESTIONS
EXPNO.1 MEASUREMENT OF RESISTANCE USING WHEATSTONE BRIDGE
Explain the operation of Wheatstone bridge.
Name two advantages of a Wheatstone bridge over an ordinary ohmmeter.
What is the range of resistance can be measured using Wheatstone bridge
What do u meant by sensitivity?
What do u meant by selectivity?
What do u meant by accuracy?
What are the limitations of this bridge?
What are the other methods used for measurement of medium r ....etc

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I want detailed answers to the viva questions asked in machine-1 lab in viva voce ....etc

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I want viva question in electrical machines 1 lab with answers
please give it to me ....etc

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please note the seminar report and ppt of the topic added in the following pages
http://seminarsprojects.net/Thread-diamond-chip
http://seminarsprojects.net/Thread-diamond-chip?page=3
http://seminarsprojects.net/Thread-diamond-chip-o-carbon-chip

just enjoy the idea of big Diamond chip ....etc

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To get full information or details of viva questions for electrical machines 1 lab please have a look on the pages

http://seminarsprojects.net/Thread-axial-field-electrical-machines?pid=8922

http://seminarsprojects.net/Thread-report-on-electrical-machines-of-bhel?pid=51675

http://seminarsprojects.net/Thread-electrical-machines-name-and-block-diagram?pid=61310#pid61310

if you again feel trouble on viva questions for electrical machines 1 lab please reply in that page and ask specific fields in viva questions for electrical machines 1 lab ....etc

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system software lab lab viva questions and answers pdf

VIVA VOCE QUESTIONS WITH ANSWERS INTRODUCTION

1. Define system software.
It consists of variety of programs that supports the operation of the
computer. This software makes it possible for the user to focus on the other problems to be solved with out needing to know how the machine works internally.
Eg: operating system, assembler, loader.

2. Give some applications of operating system.
to make the computer easier to use
to manage the resources in computer
process management
data ....etc

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