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 'Instrument Mechanic' And exam conducted in the year 2023. And Question paper code was '158/2023/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.
ال٠١ NAND gate can be used as Inverter if both inputs are shorted.
A:-All are correct
B:-I and II are correct
C:-Only Ill is correct
D:-Il and Ill are correct
Correct Answer:- Option-A
Question38:-Both the SUM and CARRY output for a full adder is 1 when :
A:-A=1,B=1,C=0
B:-A=0,B =1,C =0
C:-A = 1, 8 = 0, ८ =0
0:-^ = 1, 8 = 1, ८ =1
Correct Answer:- Option-D
Question39:-Shifting in JK Flip-Flop is as follows :
1. To shift a 0 in to the flip-flop, ) = 0 andK=0
Il. To shift a 1 in to the flip-flop J = 1 andK 0
Ill. To toggle between 0 and 1, J= 1 andK =1
A:-All the three are True
B:-Only Ill is True
C:-Only | and Il are True
D:-Only II and III are True
Correct Answer:- Option-D
Question40:-DAC technique/s is/are
A:-Successive Approximation method
B:-Binary Ladder
C:-Resistive Divider
D:-Both (2) and (3)
Correct Answer:- Option-D
Question41:-Hex inverter IC is
A:-7400
B:-7404
C:-7408
D:-7411
Correct Answer:- Option-B
Question42:-A multiplexer of 4 control line having:
A:-8 data inputs and 1 output
B:-1 data input and 8 output lines
C:-16 data inputs and 1 output