Placement Papers - ISRO

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ISRO PAPER - 22 APR 2007 - CHENNAI

Posted By : Biswa Rating : +35, -8
Hi Friends

1. If diameter of antenna increase by 3, then gain of the antenna will be,
a.increase by 3
b.decrease by 3
c.no change in gain

2. more number of problem from zener diode...

3. Vector sum from plus two book..

4. simple problem from parallel and series connection of resistor...

5. plus two matrix problem  
1    a    b+c
1    b   a+c
1    c    b+a
ans: zero

6. solve (D2+16)y=cos4x
ans:y= 4x+Bsin 4x+x/8 sin 4x

7. in half adder circuit... what are the gates used?

8. conversion problem fron digital systems octal to binary :: 66.3(octal) to binary

9. formula for cos ax=? in terms of expo
ans:   iax     -iax
    (e    + e      )/2
   
10.what is the o/p of 4:1 MUX?

11.enegry stored in variable capacitor and constant voltage...
ans : 2
0.5CV

12. Which of the following osillator have high accuracy?  refer all the osillator

13. they given a circuit, which convert binary to...?
a. BCD     b. excess 3      c. gray    d. none of these

14. output impedance of ideal op-amp is...?   ans:  zero.

15. which one of the following is correct formula? choice are simple formula like V=IR, F=eE, etc...)

16. three problems from RLC ckt

Gurubharan

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