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 'Junior Instructor (Electronic Mechanic)' And exam conducted in the year 2023. And Question paper code was '081/2023/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.
Question5:-Two capacitors 100UF each, connected in parallel are then connected in
series with a third capacitor of value 200uF. What is the effective capacitance of the
entire combination?
۸-400۴
£:-250பா
C:-100yUF
D:-300uUF
Correct Answer:- Option-C
Question6:-Which of the following devices exhibits negative resistance?
A:-Zener diode
B:-Varactor diode
C:-Light emitting diode
D:-Tunnel diode
Correct Answer:- Option-D
Question7:-Which breakdown mechanism is likely to take place in a heavily doped
PN junction diode?
A:-Avalanche breakdown
B:-Zener breakdown
C:-Both avalanche and zener breakdowns
D:-Neither avalanche nor zener breakdowns
Correct Answer:- Option-B
Question8:-Which of the following statements are not correct for a JFET?
(i) It is a bipolar device
(11) ॥ has high input impedance
(iii) It is a current controlled device
(iv) Small in size compared to BJT
A:-(i) and (ii)
B:-(ii) and (iv)
C:-(iii) and (iv)
D:-(i) and (iii)
Correct Answer:- Option-D
Question9:-The arrow pointer on a transistor symbol indicates
A:-direction of minority carrier current
B:-direction of majority carrier current
C:-direction of hole current
D:-direction of electron current
Correct Answer:- Option-C
Question10:-For the operation of n-channel E-MOSFET, the gate voltage must be