SUPARCO AM Electronics Test 2012.12.12 - KHI
 

Today, SUPARCO AM Electronics Test was conducted for Karachi centre at SUPARCO HQ (Gulzar-e-Hijri, Scheme-33, near Maumiyat). Test timing was 10:30 but it started 55 minutes late at 11:25 because AM Electrical test was held earlier at the same place and it took time to clean up.

I don't remember all the questions but I will share what I can collect from memory.

Test:
Total 50 MCQS with 4 possible answers (a,b,c,d)
Total duration: 1 hour
Each correct answer will earn 2 points.
Each wrong answer will deduct 0.25 points.
No point will be earned/deducted for unanswered questions.

1 Charge of 1 coulomb is present in: [B]6.24x 10^18 electrons[/B]
2 Diode which removes a part (either positive or negative) is [B]Clipper/Clamper/Limiter[/B]
3 F (hexdecimal) is represent in decimal as: [B]15[/B]
4 RCD is used in which configuration: [B]bridge[/B]/pi
5 z-1 is used as a [B]delay block[/B]
6 Minimum sampling rate of a 300Hz - 1.8 kHz [B]3600 samples/sec[/B]
7 Minimum sampling rate of a 300Hz - 1.8 kHz ( this question was repeated in question paper) [B]3600 samples/sec[/B]
8 Rainfall plays role in face off of radio waves of frequency above [B]100MHz/1Ghz/10GHz/100GHz[/B]
9 zener diode breakdown voltage characteristics as current increase: [B]breakdown voltage remain same approx.[/B]
10 Optical sensor is composed of [B]a)photodiode/b)phototransistor/both a & b/d) laser[/B]
11 In series RLC, where R=10, |Xc|= 20, |XL| = 20, and Vs=200, what is Vc [B]400<-90[/B]
12 For discreet time signal x(n), what will be x when n is not a integer [B]undefined*/positive/negative[/B]
13 time scaling is [B]Sampling/Upsampling/Downsampling[/B]
14 if a pole is on jw axis then system is [B]marginally stable/stable/unstable[/B]
15 Transfer function is [B]laplace transform of output signal/laplace of input signal[/B]
16 f(x) = x^5 -1 then what is f^-1(x)?
17 FPGA stands for [B]Field Programmable Gate Array[/B]
18 MSI IC has built in what function? [B]opamp/other options (i forgot)[/B]
19 The function of voltage regulator is to [B]keep Vout constant when Vin or load current changes[/B]
20 ln (x-2) < 0 when [B]2<x<3[/B]
21 x3 - x - 11 = 0 (or any other 3rd order eq.), one of the roots is: [B](select 1 among) options[/B]
22 x3 + 3xy + y - 1 = 0 (or similar type eq.) , dy/dx is:
23 switching voltage regulator in pure sine wave inverter:
24 household wiring is of which type [B]single phase 2-wire type[/B]
25 Data rate from QPSK of FM wave of 100MHz bandwith
26 Analog modulation which requires least power and bandwith: [B]AM/SSB/DSB/...etc.[/B]
27 The channel which is open to all machines [B]broadcast*/multicast/unicast[/B]
28 Computers connected to client in a certain way. (I forgot the exact question but its related to network topology) [B]Computer network/Distributed System/..etc.[/B]
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