Kerala PSC Previous Years Question Paper & Answer
Page:5
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'JUNIOR INSTRUCTOR - ELECTRONIC MECHANIC' And exam conducted in the year 2018. And Question paper code was '049/2018/OL'. 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.
C:-Z80
D:-8051
Correct Answer:- Option-D
Question39:-What is the total power of an AM signal with 100 Watts carrier power and 100% depth of modulation?
A:-100 watts
B:-100 K watts
C:-150 watts
D:-150 K watts
Correct Answer:- Option-C
Question40:-Foster-Seeley demodulator is
A:-AM Demodulator
B:-FM Demodulator
:-PAM Demodulator
D:-PPM Demodulator
Correct Answer:- Option-B
Question41:-SCR in reverse blocking mode, the junctions are reverse biased are
A:-J1 alone
B:-J2 and J3
C:-J2 Alone
D:-J1 and J3
Correct Answer:- Option-D
Question42:-Snubber circuits are used in SCR circuit for
A:-To limit current
-To protect from high dv/dt
C:-Protect from over temperature
D:-None of these
Correct Answer:- Option-B
Question43:-Which oscillator that can be fabricated in IC form?
A:-Relaxation Oscillator
-Crystal Oscillator
C:-RC Phase Shift Oscillator
D:-Wein Bridge Oscillator
Correct Answer:- Option-A
Question44:-Base of a number system is also called
Correct Answer:- Option-B
Question45:-Divide by error interrupt in 8086 can initiated using
A:-RST 0
B:-by Resetting
C:-Using INTR
D:-INT 0
Correct Answer:- Option-D
Question46:-Using three numbers of resistances
3ھ
B:-4
C:-5
D:-2
Correct Answer:- Option-B
Question47:-The ideal output resistance of a voltage amplifier is
A:-Unity
-Infinity
C:-1000
D:-Zero
Correct Answer:- Option-D
Question48:-CMRR is related to
A:-Inverter
number of combinations can be made.
resistance.