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 ' Maintenance Engineer (Electronics)' And exam conducted in the year 2023. And Question paper code was '083/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
8:-0 ന്ഥ
C:-9.3 mA
D:-8.5 mA
Correct Answer:- Option-C
Question6:-What is the output voltage in a positive clipper if the input voltage is
higher than reference voltage ?
A:-Output voltage = Input voltage
B:-Output voltage = Reference voltage
C:-Output voltage = DC positive voltage
D:-All of the mentioned
Correct Answer:- Option-B
Question7:-What is the minimum input voltage required to switch the transistor into
saturation when
Vec=12¥Rr=15 KQ, Re=68 KQ, hfe value = 25 and Vce=02v?
A:-1.74V
6-۷7
(:-3.7 ४
0:-1.2 ४
Correct Answer:- Option-A
Question8:-What is the device constant of an enhancement type in channel
MOSFET with the drain current 1n=5mAVes=9V andV,=2V ?
A:-0.139 mA/v2
B:-0.387 mA/v2
C:-0.278 mA/v2
D:-0.102 mA/v2
Correct Answer:- Option-D
Question9:-What is the bandwidth of an Op Amp band pass filter, if the lower and
higher cut off frequencies are 3.5 KHz and 15 KHz respectively ?
A:-1150 Hz
B:-11500 Hz
C:-115 Hz
D:-None of the above
Correct Answer:- Option-B