APCPDCL-2010 Exam Paper as per my memory

1.what will happen if reactive power is less than minimum value?

2.velocity error is which response?

3.IGBT is having both the properties
a.BJT and MOSFET

4.Field Effect Transistor acts as a ________?

5. SCR is Combination of
a. pn and pn junction b.pnp and pn junction c. pnp and npn junction d. pnp and np junction

6.why we use dc series motor in urban/suburban traction system ?
a. high starting torque  b.with stand fluctuated loads c.high efficiency d. none of the above

7.accelaration 6km/hr in 30 secs free running 20 mins deceleration 6km/hr 30 secs
  is for which traction system ?

8.Alternator is connected to bus bur prime mover is short circuited alternator acts as a

9.which motor having good power factor
  a. capacitor startor  b.capcitor run c. capacitor run and start d.shaded pole motor

10. what is the disadvantage of shaded pole motors

11.Common Emitter Transistor is a__________

12.If character equation having different signs the system is

13.when we apply Regenarative brakes

14.In CRO X-plate input is square wave Y-plate input is traingle wave what is the output

15. what is the use of blanker block in CRO

16.In Anderson Bridge for measuring the quantities by using unknown and known quantities of
    a.Resistance   b.Inductor  c.Resistance and Inductor d.R L C

17.For Measurement of Capacitance which bridge we use ?

18.Some times we use Over Rated AC motors in some applications
     a. high efficiency ,low pf  b. high efficiency ,high pf     c.low efficiency ,low pf    d.low and low pf and eff

19.Over Current relay used in
    a.T/M lines  b.Distribution lines  c.Alternators D.Medium T/m Lines

20.LVDT is a ?

21.Ia0=1.8,Ia1=2.0,Ia2=1.5 amps what is the fault if values of currents is given
   a. LG fault  b.LLG fault  C.LLfault   d. 3phase fault

22.In Differential Compound Motor Series ckt is short circuited what it results
   a.Speed Decrease  b.Speed Increase  c. remains Same   d. None of the above

23.In full -load copper and Iron losses are given what will happened copper and iron losses if load half-full load

24.For a constant flux T/F   operating at 1000 rpm and 100 volts 50 Hz is speed is changed to New value 1200 rpm what is the new value of Voltage

25.Chopper Ton =100 and Toff=150 for protection of over voltage and over current

26. what is the phase shift of Common Emitter Transistor

27. In Step and Ramp responses what is the steady state errors

28. what is the condition of state space theory in both time and frequency domains

29.Half,semi,Full,Dual Convertor voltage values match the fallowing

30.what is the use of reheater in Thermal Power Plant

31. where is the surge tank placed in Hydro power plants.

32. which plant we used as peck load power plant
    a.hydro  b.nuclear  c. thermal  d. Diesel

33.In Butt Welding what will happen if Subject thickness is incresed
   a. voltage and current increased    b. v and i Decreased   C. V constant I increased  D. V  and  I Constant 

34.3 phase induction squirrel cage ,3phase Slip Ring,Single Phase IM,Synchronous  there starting methods

35.In DC shunt motor Series Resistance is short Circuited what will happen

36.How to we reduce magnetic hum in T/Fs

37.Treedoys are used for ?

38.A 400/220 Volts T/F P.U impdence is reffered to HV side is 0.1 P.u if we refer to LV  what is impedence value

39.What is advantage the advantage of 3 phase over single phase

40.Gate Realizations

41.what is the max regulation of IMotors

42.What is The Efficiency of modern thermal power plants

43.If SurgeImpdence is terminated what will happen in T/M lines

44.what will happen if receiving end is open circuited

45.If system having 3 Asymptotes how many poles and zeros that system have
  

EVM(Electron Voting Machine) Tampering

Hi All i Heard that It possible to Tamper the EVM Easily it is proven by one of hyderbad engineer
will we trust this or not....

As per my knowledge it is easy to program a Chip is easy....