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MNC Instrumentation Interview Questions
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defination of radial vibration?

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A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.

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MNC Instrumentation Interview Questions


Un-Answered Questions

What do numeric pyramids represent?

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What is substr in php?

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What is the purpose of gr/ir account while posting good receipt and invoice verification?

268


How Many grams of solid iodine are produced by the decomposition of 25.4g of hydrogen iodine gas?

1876


What is the purpose of using timestamp data type?

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What is meant by flipflop?

251


how a DPAD converts voltage to current?

1447


what is cryptography? Why do we need it?

198


How environment variable is set so that the file permission can be automatically set to the newly created files?

192


Explain the profile option 'node trust level'.

206


what radial pressure, the NP2 class rcc pipe can sustain?

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Does orbix 3 support vos (virtualization operating systems)?

164


State some of the features present in the web sphere?

172


What are .net functions?

169


respected sir, i had applied for the post of GET for JSPL so kindly send me the syllabus and exam pattern for the concerned examination. my mail id: starsunny49@gmail.com thanking you sir

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