What is the relation between instance and ami?

166

What are two contours of nichols chart?

1013

How do you create a child theme?

125

Which are the main coalition groups in the agriculture negotiations?

883

How do I enable ubuntu on windows 10?

699

What are filtered views?

605

The cpc on my best keywords continues to go up. Why?

461

can we implement multi-threads in c.

1091

please send me previous year questions of jspl through which i could prepare myself for the test.

1835

Which is more secure rest or soap?

837

how recovery manager works in winrunner

1956

Whether it is poosible to give 2 different inputs for a service in jcaps

2263

What are all the different types of scope that declare scope provide ?

461

Explain about raising error exceptions?

817

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.

2118