viva questions and answers for plc lab

What are different comonents in PLC?
Answer: 1. Input Interface 2. Memory Section 3. Central Processing Unit (CPU) 4. Programmable Language 5. Programming tool 6. An output Interface

Advantages of PLCs than Hard wired Relay?
Answer: PLCs are highly reliable, easily programmable, Small and Inexpensive, PLCs can be designed with the communication capabilities so they can converse with the local or remote computer, They can sustain in robust environment less maintenance.

What is the programmable language ....etc

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Introduction

What is Automation?

- Automation is making a process automatic, eliminating the need for human intervention.
- Is a self-controlling or self-moving process.
- Automation software offers automation wizard and commands of its own in addition to
providing task recording and re-play capabilities.
- Using these tools we can record the task
- Then if needed use the editor to edit the task, add new commands or using GUI automation
wizards

Benefits of Automation

Fast: test automation runs faster than human users
Reliable: it perform ....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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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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ELECTRICAL ENGINEERING PRACTICAL VIVA-VOCE QUESTIONS
LIST OF QUESTIONS:COMMON QUESTIONS:1)

WHY DO WE REPLACE CURRENT SOURCE WITH A OPEN CIRCUIT FOR CALCULATING RTH?2)

WHY DO WE REPLACE VOLTAGE SOURCE BWITH A SHORT CIRCUIT FOR CALCULATING RTH?3)

WHAT DO YOU MEAN BY LOAD?4)

WHICH QUANTITY IS SAME IN SERIES CIRCUIT?5)

WHICH QUANTITY IS SAME IN PARALLEL CIRCUIT?6)

WHAT DO YOU MEAN BY RESISTANCE OF A CONDUCTOR?7)

WHAT DO YOU MEAN BY IDEAL VOLTAGE SOURCE?8)

WHAT DO YOU MEAN BY IDEAL CURRENT SOURCE?9)

WHAT DO YOU M ....etc

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To get data about it please visit the given page link :

http://engineeringinterviewquestions.com. ....etc

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why to go for testbenches.its uses.difference between serial & parallel adder.use of counter ....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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plz post electrical technology lab viva questions with answers ....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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