ISRO Technical Assistant Electronics Skill Test Previous Year Question
Ursc 2024
1 Half Adder
2. Astable Multivibrator
3. Full subtractor
4. Inverting Amplifier
5. D Flip flops
6. Op-Amp ( Differentatior Amp )
7. Op- Amp Integrator
8.Astable Multivibrator Using Timer 555, With R1= 10k Ohm R2= 10k ohm, C= 1 micro farad,
Calculate - Ton, Toff, Total Time period and Duty Cycle
They didn't given Formula of Ton, Toff
2nd set of question:-
A. Full Adder using 2 Input Gate
B. Astable Multivibrator Using Timer 555, With R1= 7.5k Ohm R2= 7.5k ohm, C= 10 micro farad,
Calculate - Ton, Toff, Total Time period and Duty Cycle
Other Days:-
A. One set 4bit binary to gray converter
B.Two stage non inverting amplifier by opamp
2nd Set Of Question
A.4bit gray to binary converter
B.Zero crossing by opamp
Other Days:-
A. Full Adder Using Basic Gate
B. Astable Multivibrator
HSFC
1.Differentatior Amp
2. T Flip flops
VSSC
1. 2 Bit Comparator Ckt
2. Wein Bridge Oscillator
3. Half Adder ( 7 NAND Gate Diagram Given)
4. RC Couple Amp
5. Multiplexer By NAND GATE
6. Schmitt Trigger
7.Given a digital circuit for 4 input combinations to verify output
8. Wein Bridge Oscillator using Opamp. Find output frequency and Vp-p.
LPSC
1. Full Adder Output Check By Multimeter
2. Square Wave Generator
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