UPSC Senior Scientific Assistant Electronics Model Paper
If You are appearing in UPSC exam for Senior Scientific Assistant (Electronics) post in Directorate General of Aeronautical Quality Assurance (DGAQA), Department of Defence, Ministry of Defence which will be conducting on 29th Jan 2022 at various exam centers and searching the UPSC Senior Scientific Assistant (Electronics) Previous year papers. Then you are at right place. Here we are providing the UPsC Senior Scientific Assistant (Electronics) Model paper on Analog And Digital Circuits
Solapur University M. Sc. Nano Physics (Semester-I) Paper on Analog and Digital Electronics Oct 2019
| Sr. No. | Question |
| 1 | In a differential amplifier, the configuration is said to be an ‘unbalanced output’, if ________.
(a) Output voltage is measured between tow collectors (b) Output is measured with respect to ground (c) Two input signals are used (d) All the above |
| 2 | An ideal operational amplifier has ________
(a) Infinite output impedance (b) Zero input impedance (c) Infinite bandwidth (d) All of the above |
| 3 | Another name for a unity gain amplifier is _______
(a) Difference amplifier (b) Comparator (c) Single ended (d) Voltage follower |
| 4 | The use of negative feedback _______
(a) Reduces the voltage gain of an Op-amp (b) Makes the Op-amp oscillate (c) Makes linear operational possible (d) Answers (a) & (b) |
| 5 | Hartley oscillator is commonly used in ____
(a) Radio receivers (b) Radio transmitters (c) TV receivers (d) None of the above |
| 6 | What should be the value of input resistance for an ideal voltage amplifier circuit ?
(a) Zero (b) Unity (c) Infinity (d) Unpredictable |
| 7 | A Wein-bridge oscillator uses which feedback?
(a) Only positive (b) Only negative (c) Both negative and positive (d) None of the above |
| 8 | Circuit which consist of a quasi-stable state is called_______
(a) Bistable circuit (b) Monostable circuit (c) Tri stable circuits (d) Tristate circuit |
| 9 | What is the range of the voltage level of the LM317 adjusted voltage regulator?
(a) 0 V to 5 V (b) 1.2 V to 37 V (c) -5 V to -24 V (d) 5 V to 24 V |
| 10 | Simplify Y=AB’+(A’+B)C
(a) AB’+C (b) (A+B) (C’+D) (c) (A’ +B) (C’+D) (d) (A +B’) ( C +D’) |
| 11 | The EXCLUSIVE NOR gate is equivalent to which gate followed by an inverter
(a) OR (b) AND (c) NAND (d) XOR |
| 12 | The basic latch consists of
(a) Two inverters (b) Two comparators (c) Two amplifiers (d) Two adders |
| 13 | Which is the 16-bit register for 8085 microprocessor?
(a) Stack pointer (b) Accumulator (c) Register B (d) Register C |
| 14 | A bus connected between the CPU and main memory that permits transfer of information between main memory and CPU is known as _______
(a) DMA bus (b) Memory bus (c) Address bus (d) Control bus |
| Published on 8th Oct 2021 | |
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