what are the uses of economically important plants?

888

---

if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.

716

---

I am at starting stage,so how could i prepare for my management interviews?

949

---

what is the work of Loopback ?

665

---

1 Briefly describe your ideal job: 2. What goals do you have in your career? 3. How do you plan to achieve these goals?

1120

---

---

What Is HO factor in power selection

726

---

what is designing step of heat exchanger

1806

---

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.

931

---

how to select size of hardware for linking aluminium busbar is it depend on area of busbar or current flowing through bus bar

774

---

although ckt breakers have taken the place of old fuse. But instead of it , these older ones are still used in the industries and homes ? why .... what are their advantages and disadvantages ? which one is leading and winning the race and competition ?

683

---

Describe TCP flow control?

841

---

How to query dates using Day-Month-Year using local SQL ?

545

---

Why did you choose the Software Testing Field?

794

---

what questions are asked in this round for ece

729

---

what is package and it uses and how can u call a package

851

---