Answers for E.C.E - 2

Answers of questions of   E.C.E 2

1. BAR, which is further equal to 100 kilopascles.

========================================

2. Due to the long term exposure to stress, metal deforms permanently, this phenomenon is          called creeping.

========================================

3. Generally,  flux = flow rate / membrane area.

     It is measured by using Ballistic Galvanometer.

========================================

4. An ideal volt meter has infinite internal resistance. It acts as a open circuit.
    An ideal am meter has zero internal resistance. It acts as a short circuit.
========================================


5. Implantation defects(defects in substrate) causes the leakage current in transistor. It flows through the pn junction when it is inversely polarized.
    Another reason is TiSi gain, which occurs during annealing process.
========================================


6. Generally, the slope of load line depends upon Resistor value. 
========================================


7. Direct conversion ACD or  Flash ACD 
========================================


8. 8
========================================

Questions Based on Electronics and Communication Engineering - 2

Questions of E.C.E 2


These Topics have appeared in EIL(Electronics India Limited) Exam, October 2011

1. What is the use of pressure gauge?
2. Where the phenomenon of Creeping occur?
3. How to measure flux?
4. Property of a ideal meter.
5. Reason of Leakage current in transistor?
6. The slope of D.C. load line depends upon?
7. Which is the fastest A/D converter?
8. Min. no. of flip flops needed to measure a BCD decade counter is?
9. What are the Properties of negative logic system?
10. Examples of universal gates.
11. Properties of  a ideal current source.
12. Example of circularly polarized antenna.
13. Relationship between Directivity and Directive gain.
14. Define Broadcast array and give examples of Broadcast antennas.
15. Explain Lenz's law.
16. Explain Faraday law.
17. Unit of electric displacement current density.
18. Electric field strength at a given point is?
19. How we can generate PWM?
20. Disadvantage of F.M over A.M.
21. Use of de-amphasis circuit.
22. Quantization noise in PCM can be reduced by?
23. Millimeter wave has the range of?
24. Where we use pre-amphasis circuit?
25. Out of PCM, PAM, PPM and PWM, which one is highly immune to noise?

click here for E.C.E 1

Answer for E.C.E 1

Answers for  E.C.E  1  questions


   1.900-1800 Mhz

======================================

  2. CMRR measures the tendency of an Op-amp to reject the signal at input as their might be a small percentage of input signal is necessary. 


                                    

                                        CMRR = 20log₁₀  A_d/A_cm

          

                    A_{d =} differential gain

                    A_{cm =} common mode gain

======================================

3. Normal AM Broadcasting is done by Directional Antennas to reduce the change in broadcasting during day and night time.

=====================================

Questions based on Electronics and Communication Engineering

Questions of  E.C.E 1

1. The operating frequency of GSM in India.
2. CMRR of an Operational amplifier is?
3. Normal AM Broadcasting is done by?
4. In a lossless transmission line, the relationship between R,L,G, and C is?
5. Laplace transform of coswt?
6. Metal oxide varister is used for?
7. Diode made by metal and semiconductor?
8. What is Kernel?
9. What are the problems in TCP protocols?
10. Why we used polymorphism?
11. Fork( ) is used for?
12. RAID is used for?
13. Z inverse stands for?
14. Which junction is formed by Recrystallization?
15. How many GEO-Synchronous satellites cover the whole Globe?
16. Which antenna is used for TV broadcasting?
17. Area under unit impulse signal is?
18. What is De-Morgan Law?
19. What is the mode of wave propagation in free space?
20. In which type of amplifier current flows for less than half the cycle?

Check the answers for E.C.E 1