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Sunday, February 24, 2008

Wipro placement paper-1

1. Add 79H and 86H and tell the contents of flags

2. Scr is used for _____ ( ac, dc , both )

3. Push pull amplifier is used to remove which harmonics ( even , odd , both )

4. PAM is demodulated using ___ ( low pass filter , high pass filter )

5. 16k memory is needed. How many chips with 12 address buses and 4 data
buses are needed.

6. AM wave is detected using _________ detector

7. Which flip flop is used for shift registers

8. Program counter does what __ (stores a memory address, address of the present instruction)

9. In a bistable multivibrator communication capacitor is used for ______ ( speed up response , ac coupling)

10. Totem pole is what?

11. Time costant for an integrator and differentiator should be ( small , high etc.)

12.TV waves are __ ( sky waves , space waves etc.)

13.Which configuration has highest i/p imp. ( ce , cb , cc )

14. Parabolic antenna with 2degree angle. What is its directivity.

15. Given 10 mhz pe modulation and we got a 100 mhz band.
How many channels can be there.

16. If o/p power is doubled by how much does the sound increase ( 1db,2db,3db )

1 comment:

KK said...

To get used to WIPRO papers one has to practice numeric aptitude from books like R S Agarwal.
Also it is essential that you need to try out sample placement papers in numeric aptitude, technical (pertaining to computer science) and verbal.

FOR MORE PAPERS AND OTHER PLACEMENT RELATED INFORMATION VISIT BELOW MENTIONED LINKS

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