Kerala PSC Previous Years Question Paper & Answer
Page:10
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Lecturer in Electronics Engineering (Govt Polytechni - Technical Education ' And exam conducted in the year 2021. And Question paper code was '004/2021'. 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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The decimal equivalent of (11011.01), is
(५) (27.02),, (8) (54.25)
(C) (27.25), (D) (54.02),,
A device which converts BCD to seven segments is called
(^) Encoder (B) Decoder
(C) Multiplexer (D) Demultiplexer
The simplification of the Boolean expression (A ए ©) + (ABC) is
(A) 0 (B) 1
(© A (D) BC
The SOP form of (A + 0) (AB + AC) (A © +B) is
(A) AB+ABC (B) AB+ABC
(©) AB+ABC رم (A+B)(A+B+Q)
Data can be changed from special code to temporal code by using
(A) Shift registers (B) Counters
(C) Combinational circuits (D) A/D converters
The gates required to build a half adder are
(A) EX-OR gate and NOR gate رم EX-OR gate and OR gate
(C) EX-OR gate and AND gate (D) EX-OR gate and NAND gate
logic family has low power dissipation and has excellent noise immunity.
(^) ECL, TTL (8) RTL,HTL
(©) RTL, DTL (D) TTL, RTL
Why is a pull-up resistor needed when connecting TTL logic to CMOS logic ?
(A) 1൦ increase the output LOW voltage
(B) 10 decrease the output LOW voltage
(C) 7௦ increase the output HIGH voltage
(D) 10 decrease the output HIGH voltage
A basic S-R flip-flop can be constructed by cross-coupling of which basic logic gates ?
(A) AND or OR gates (B) ೫೦೩ or XNOR gates
(C) NOR or NAND gates (D) AND or NOR gates