Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Lecturer in Electrical and Electronics Engineering TechnicalEducation (Polytechnics)' And exam conducted in the year 2023. And Question paper code was '131/2023'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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Gain modulated field effect transistor is also known as :
(A) BJT (B) MOSFET
(C) IGBT (D) SCR
The typical quiescent power dissipation of low power CMOS units is :
(0) 7٢7 ൪൫) 05 uW
(0) 1mW (D) 3mW
Find the sampling interval for sin(2zt):
(^) 1 86८ (8) 4860
(0 0.5 sec (D) 1.5 sec
The ideal SNR of 8 bit ADC is:
(A) 49.92 dB (छ) 348
(C) 99.84 dB (D) 14B
In which memory the program data for the currently executing program will be stored :
(^) Auxiliary memory (B) RAM
(C) ROM (D) Cache memory
A 200/400 V, 50Hz, two winding transformer is rated at 20 kVA. Its windings are connected
as an auto-transformer of rating 200/600V. The power rating of the autotransformer is :
(A) 0۸ (B) 20kVA
(C) 30kVA ۵۸ھ رم0
In a 200/100 V, 50 Hz transformer, 150V and 75Hz is applied to the primary side. Assuming
that the magnetic circuit will remain unsaturated, the flux density will change to :
(A) 2.25 times (B) 2 times
(C) 0.5 times (D) remain unchanged
A 400/115 V delta/star transformer has 2A third harmonic current in all the three secondary
phases. What is the magnitude of third harmonic line current on the primary side?
(^) zero (B) 058A
(0 1A (0) 1.73 ^
11 131/2023
[P.T.0.]