Kerala PSC Previous Years Question Paper & Answer
Page:8
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.
A:-PN junction
B:-P type semiconductor
C:-N type semiconductor
D:-Extrinsic semiconductor
Correct Answer:- Option-A
Question35:-What is the reverse current in a photo diode when there is no incident
light ?
A:-Saturation current
B:-Zener current
C:-Dark current
D:-Leakage current
Correct Answer:- Option-C
Question36:-The fractional number 0.3125 in decimal number system can be
represented in binary number system as
A:-(0.0101),
B:-(0.1010),
C:-(0.0100),
D:~(0.1011),
Correct Answer:- Option-A
Question37:-Representation of decimal number 498 in hexadecimal number system
is
510 2)- :م
B:-(1F2),,
ദം
D:-(213),,
Correct Answer:- Option-B
Question38:-Let a binary function F(A, B, C, D) = 2 (0, 2, 5, 7, 8, 10, 13, 15). This
binary function when reduced using a 4 variable K-Map will result in
A:-AB + A’B’
B:-BC -- 8൦
C:-ABC
D:-BD + 8'೧'
Correct Answer:- Option-D
Question39:-Assume 3 inverters, each with propagation delay of 100 ns are
connected in series and the output of the third inverter is connected to the first
inverter. Assume there is no other external input. The output of the third inverter
will have an approximate fundamental frequency of
A:-10 MHz