Kerala PSC Previous Years Question Paper & Answer
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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.
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The IE register of 8051 is
A) Non bit addressable register
B) Bit addressable register
C) 16 bit register
D) Used to set the priorities of interrupt
The maximum input voltage and output voltage of IC regulator 7812 is
A) 35V, 6V 8) 30۷, - ۷
©) -35/ -12/ D) 35V, 12/
Which of the following is an active component ?
A) Resistor B) Transistor
C) Inductor D) Capacitor
The Gray code corresponding to the binary number 1111 is
A) 1010 B) 1111
0) 1000 D) 1100
The tolerance of a Resistor with three band colour code is
A) +10% 2) + 5%
0) ೫20% D) +2%
In a series resonant circuit with quality factor of 10 has a 3dB bandwidth of
100 KHz. Its resonant frequency in KHz is
A) 1000 B) 10
C) 100 D) 50
Master slave configuration is used in flipflops to
A) Reduce propagation delay
B) Reduce power dissipation
C) Eliminate race around condition
D) None of the above
Which of the following statements is correct for interrupt priorities in 8051 ?
A) A high-priority interrupt can interrupt a low-priority interrupt
B) All interrupt are latched internally
C) Low-priority interrupt wait until 8051 has finished servicing the high-priority
interrupt
D) All the above