It is said that buffer is used when any circuit has to drive large outputs. why is buffer used?
1 2770Why EMI is very low in optical fiber,while frequency is very high? As we no that in general condition frequency inversely proportional to EMI.
IIT,
2 3487Which type of power plant is more easier to produce electrical power at economical condition?
HAL,
1667Where is the maximum temperature in refrigeration cycle? a.Between evaporator & compressor. b.At Compressor c.Between compressor and condensor. d.At condensor
1717The ratio of Emissive to absorption power of heat by a body is equal to heat emitted by a perfect black body. Who said the statement
HAL,
1783Post New Electronics Communications Questions
What is meant by led?
1. How many TRXs are supported in Nokia Metrosite 2. What is the command to lock the TRX 3. What is the command to unlock the BTS 4. What is the command from BSC to check the alarm in BTS 5. What is the maximum transmit power of FlexiEdge BTS 6. When Abis link is down, name the alarm that is generated at BSC 7. Orange LED on RRI card is glowing – what is the indication? 8. How many E1s are supported by one E1 card in BTS 9. How many ways one can login to BIO card? 10. What are the different data rates in Abis for Traffic, TRX signaling and OMU 11. BCSU card in BSC can support how many TRXs? 12. What is the command to check list of sites that are down? 13. How many TRX are supported when we use one M2HA card in BTS? 14. Name the different types of power supply card in BTS and the output power of each card 15. Ater interface is between transcoder and MSC – True/False 16. SS7 signaling is used in Abis interface – True/False 17. FlexiEdge BTS has RRI card – True/False 18. From Transcoder to MSC, data rate for each call is 64Kbps – True/false 19. Name different types of TRXs which supports different GSM bands 20. ODU LED shows orange – what is the significance?
Define nyquist criteria.
Why do we convert frequency domain to laplace domain?
Define what is meant by filter?
What is meant by load commutation?
With the help of diagram explain a cmos inverter.
How α and β are related to each other?
What is race around condition in a jk flipflop?
Explain what are edge triggered flip flop and level triggered flip flop? How do they differ from one another?
Explain the concept of frequency re-use.
Explain what is a truth table?
What are the main classification of inverter?
Draw the equivalent circuit of triac and diac.
What are the pros of using plasma screens.
