2011 Reliance Power Placement Paper:

1. In a series RLC circuit Fo is resonace frequency, if LC r doubled wat is new resonace frequency?

2. R=5 ohm, V= 5v, f=200 hz, and given conditions r VL=VC= 2VR , find L=?

3. Comparision between maxwlls and hey bridge.

4. VPQ=?

5. Find R in a balanced bridge network.?

7. In a Transfer at no –load friction and windage losses r called as ………..(ans : Iron losses)

8. Maximum power transfer through line ..V1= 110 kv, V2= 100kv, X=22 ohm,….( ANS: 500 mw)

9. Shunt reactor effect on Trans. Line

10. Series capacitor effect on Trans. Line

11. Velocity in distilled water(e= 81)…magnetic field intensity find electrical field intensity(I did not remember)

12. Question on pointing vector

13. If a dc machine (p=6;z=some value ;r=some value having lap winding then re winded machine winding as a wave winding find armature resistence?

14. In a Dc series motor having 2 pice of field winding in series if the field winding is re- wounded as two parallel paths then speed of motor(at constant torque)

15. For above rated speed the type of speed controls method (in case of DC motor)?

16. Statements regarding transformer (1.constent flux.2..3..4..)

17. Question on regulation of alternator at zero leading PF(ans : -50)

18. Question on power transmission in T.line .

19.regarding relay parameters, settings.(problem)

20. in a synchronous motor if load is increasing then armature current is decreasing then initially machine is operating at what PF?