Out of 160 questions there were
20 mathematical questions,10 vocabulary, 5 paragraph questions,10 fill
in the blanks, 20 apttitude and rest was subject related.

1. partial differntiation of x^3*y^3/(x+y)^3

2. some points like (0,2,4),
(2,5,-1) and (6,2,0) were given and were asked to find whether it is
parabola, ecllipse, carboid or cycloid.

3. there were so mant conversion
questions like binary to decimal, decimal to binary, decimal to oct,
binary mulitiplicationsetc.

4. some laplace formulae related to sine and cosine terms.

5. fouries series of quarter symmetry

6. by appling rouths hurwits
criterien we were suppose to find the nuber of roots the equation was
something like 2s^4+s^3+4s^2+s i think so

7. damping is proportional to gain, sqrtof gain, 1/gain or 1/sqrt of gain

8. vocabulary like germs:diesease::, emulate:mimic::,

9. there questions about power
plants like which plant correspondes to highest capital cost, highest
running cost,lowest operational cost, efficiency of thermal plant etc

10. what is the present capacity of unit generation 200MW, 210 MW, 375MW or 500 MW

11. where in nuclear power plant is located like kota, talcher, kolghat,

12. there was 1 question realed to idduki, ramagundam power plants i dont know whether it is the odd 1 out of the hydro plants

13. there was 1 repeated questions related to the spacing b/w the phase conductors like 11m, 8m, 20m, 24m.

14. is megger related to hot wire instrument,moving coil or moving iron.

15. 1 question related to load factor.

16. in a two w/m method what is the condition for which both the w/ms are equal and opposite.

17. question based on inverter gate

18. question related to maximum overshoot.

19. 2 or 3 questions were related to step input, impulse i/p etc.

20. 1 question related to boolean algebra

21. some questin related to find the value of lambda to get no solution.

22. 1 question was related to find from the options of nquist criteria, bode plot, routh hurwits,

23. question related to expontial rise and fall of inductor.

24. given 2 poles and 50 hz freq to find the syn speed.

25. question based on inertia constant and p.u. values

26. quetion baed on power transfer capacity and voltage

27. SIL of 400 KV lines

28. 2 quetions based on maximum power transfer capacity from circuit theory.

29. apttitude ques of pipes and cisterns, compound interest, time and distance,cubes, hcf and lcm,multiplication,

30. for how many days there will food if 2 persons are supposed to leave. question related to this were asked.

31. questions related to angles i
dont remember the quetions i remember only the options like pi/3,
pi/6,pi/4. 1, -1, 1/2 1/sqrt2. etc

32. ouestion based on P&V, P&Q, V&delta.

33. how many HVDC links are presently in use in india.

34. there were 4 questions like
if A*B represents Ais the son of B, C/D represents Cis the husband of D
then how A and D are related.

35. to sort the odd number out from a box of given numbers.

36. Vrms and Vo of full wave rectifier

37. reflection coefficent of current of an open ended line.

## 5 comments:

thanks for giving me a idea about how the exam is going to be.........

Thank you sir ... thank you very much. this pattern really helped me as i was so confused about the exam pattern.

Thank you for the info..I'll be thankful if u post some more question papers..

can we conclude that there are no questions over the subjects like digital signal processing or communication?

U ROCK....Thanks for the help.

sir can u pls post the sample paper of electronic and instrumentation please

## Please post your thoughts and queries for HAL Electrical Previous Year Question Papers