Kerala PSC Previous Years Question Paper & Answer

Title : Tradesman (Electronics) - DEPARTMENT : Technical Education
Question Code : A

Page:2


Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Tradesman (Electronics) - DEPARTMENT : Technical Education ' And exam conducted in the year 2022. And Question paper code was '102/2022'. 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.

page: 2 out of 14
Excerpt of Question Code: 102/2022

8. From the following which is equal to 1 Watt?

(^) 1 Farad (B) 1 किण Volt

(೮) 1Joule / Second (D) 1 Volt / Ampere
9. The SI unit of electric conductance is :

(A) Ohm (B) Siemens

(C) Coulomb (D) Candela

10. A sine wave has a maximum value of 40 mv. The rms value of the sine wave is :
(A) 22.48 (B) 25.48
(C) 28.28 (D) 24.24
11. An Oscilloscope shows 20 cycles of sine wave occurring in 2 milli seconds. The time period of
the sine wave 15 :
(A) 0.01 milli seconds (B) 0.001 milli seconds
(C) 0.1 milli seconds (D) 0.0001 milli seconds

12. Ina pure parallel resonance circuit, with pure inductor and pure capacitor, at resonance the
impedence will be :

(A) Infinity (B) Zero
(C) Maximum (D) Minimum
13. The instrument used for measuring high voltage and high current is :
(A) Digital Multimeter ൯) Ammeter
(C) Instrument Transformer (0) Megger
14. The effect on Current Transformer (CT) if it’s secondary is kept open 18 :
(A) CT primary burns out ൯) Volt-Ampere capacity reduces
(೮) Volt-Ampere capacity increases (D) CT secondary winding burns out
15. The colour coding of a resistor is Blue, Red, Yellow, Gold, Gold. It’s value is :
(A) 6240 + 5% ®) 6.24KQ + 5%
(€) 62.40 + 5% (D) 62.4KQ + 5%

16. InanAC supply system, to improve power factor :
(A) By connecting inductive load in series
(B) ‏×ط‎ connecting capacitors in series with the load
(C) By connecting inductive loads in parallel

(D) By connecting capacitor in parallel with load

102/2022 4 A

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