these were the only questions from power section as far as i remember
1. Why hollow conductors are used in transmission line
2. How load is modeled in load flow analysis
3. Series capacitor is transmission line results in
4. What limits design of long transmission line
5. What is the zero sequence current if fault current is 90A
6. Series reactor in transmission line is used for

15/17
50/83
KPK domicile.

BE Electronics,
What are the chances?

I got 60 with Electrical in Power and i was really disappointed to see the test,I won't blame NTS for that thing though as it's a transparent test taking authority but at least they could take care of the requirements of the post.NTDC purely deals with Transmission and Power and the test comprised of electronics/telecom questions giving electronics/telecom engineers a slight in the race.
My sympathies are with those who couldn't qualify the test but this time majority from electronics are gonna be selected.
Party time for them!

i have got 60 marks , any one who got more then 60 may post there thanks no need to waste time on discussion because no one listen and cares what you all want.

60 marks
GK:12
Subject: 48


Quetta, Balochistan

I am posting some questions of the test just for knowledge. And only some questions with answers. If someone has answers to these question plz post
1. increase directivity of antenna depends on high gain high bandwidth,low gain low bandwidth, high gain low bandwidth, low gain high bandwidth
2. gsm uses tdma, fdma
3. orthogonal means two line perpendicular to each other
4. amps uses fm,fsk,psk
5. Which modulation has higher data rates fm,am,qam,qpsk
6. fly back converter for dc/dc,ac/dc,dc/ac,ac/ac conversion
7. large phase mercury rectifier advantage
8. cmrr ratio of powers of differential gain over common mode gain
9. series capacitance in transmission line for steady state stability,protection
10. shunt reactors used for
11. In a transfer function k=0 root loci roots are
12. For System stability roots must be __ right half of s plane,left half of s plane, jw
axis
13. TDMA uses
14. Output occurring due to only input with zero initial conditions called
15. The maximum loads attached to a device called fan in,fan out
16. (Only choices) gauss law,farady law,ampere circuital law, biot-savart law
17. Calculate voltage of toaster with joules=7500 ,i=13.64A ,t=5, v?
18. Differential amplifier amplifies
19. link layer design also called
20. tcp/ip address 32 bits
21. multiply two 16 bit numbers result is 4 bytes
22. power factor true power/apparent power
23. differential amplifier coupling transistors coupling
24. 2 bjt,s replaced with Darlington pair what happens
25. Fault current 1500A zero sequence current 500A
26. Induction motor torque proportional to slip, inversely to slip,square of slip current,
27. waves reach at the antenna which modulated digital, modulated analog, aligned waves
28. Dc motor pole tip chamfered to reduce armature reaction effect
29. Primary and secondary voltages in transformer are in 180 out of phase
30. Definition of Electrical flux density, magnetic flux density, magnetic induction
31. Why Impedance matching performed for signal transferring to reduce noise,reduce attenuation,
32. At no load losses occurring in transformer are due to
33. At no load transformer the applied voltage _ leads by 90/lags by 90/lags somewhat by 90 to current
34. laplace transform of unit step function 1/s
35. for 8 pole generator how much hz respond to one revolution
36. Why hollow conductors are used in transmission line
Reduction of the corona
37. What limits design of long transmission line thermal considerations/conductor area
38. How load is modeled in load flow analysis constant power,constant impedance,constant load, variable load

@ imani I really appreciate your effort. Telecom questions were quite new to Power engineers,That's why they couldn't perform well.

An alternator has 8 poles, for one revolution the frequency would be in Hz:
10 4 8 16

The above question is wrong.
Previously, I thought NTS would have noticed this question but I called NTS just now, they said we have not received any complaint.

I request all members who think that this question is wrong, please email/call NTS and ask them to compensate for this. Please do fast as we have already running short of time.

this question is correct bro. check this link and read the frequency portion
http://books.google.com.pk/books?id=...&q=661&f=false

Now check this mcq # 17
http://books.google.com.pk/books?id=...&q=670&f=false

the answer is (i) 3 . its not mentioned in website but i have checked it in my book

13/17
43/83
=56/100
frm ajk................any one frm this ajk plz shareur result.................