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 'Workshop Instructor/ Demonstrator/ Instructor Grade II in Electronics and Communication' And exam conducted in the year 2023. And Question paper code was '058/2023'. 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.
14.
15.
16.
17.
18.
19.
20.
21.
22.
058/23
The SFR address of B register in 8051 is
A) 080H B) OFOH
C) OEOH D) ODOH
The IC 7476 is
A) Decoder B) Shift register
C) JK flipflop D) D flipflop
The transistor configuration which has both voltage and current gain is
A) Common Emitter B) Common Base
C) Common Collector D) All the above
In the instruction MOV A, @Ri. the register Ri may be
A) Any register from RO to R7 8) Registers RO and R11 only
C) Register RO only D) None of the above
A Bipolar Junction Transistor (BUT ) is a
A) Voltage Controlled Voltage Source ( VCVS)
B) Voltage Controlled Current Source (VCCS)
C) Current Controlled Voltage Source (CCVS)
D) Current Controlled Current Source (CCCS)
Which of the following IC is a general purpose opto coupler ?
A) NE 566 8) 41135
C) NE565 D) NE 555
In aseries resonant circuit, at resonant frequency the current through the capacitor
is the current through the inductor.
A) greater than B) less than
C) greater than or equal to D) equal to
A component which opposes sudden change in voltage is
A) Capacitor B) Inductor
C) Diode D) Resistor
The SMPS work on the principle of
A) Integral control B) Chopper
C) Phase control D) Frequency control