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 'TRADESMAN ELECTRONICS TECHNICAL EDUCATION QUESTION PAPER' And exam conducted in the year 2017. And Question paper code was '061/2017'. 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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IIIII|I| 06122017
The time constant of RL circuit is
L
A) 3 = RC seconds B) A= R seconds
07ಎ ನ್ 5900೧06 D) 3 =63.3% x RC seconds
Avalanche breakdown is primarily dependent on the phenomenon of
A) Collision B) Doping
C) lonisation D) Recombination
The deplstion region of a junction is formed
A) During the manufacturing process
©) When forward bias is applied to it
C) When reverse bias is applied to it
D) When its temperature is reduced
The acceptor impurities are
A) Antimony B) Boron
C) Germanium D) Carbon
Deplstion region of P-N junction contains
A) Immobile ions B) Negatively charged electrons
C) Electrons and holes D) None of the above
Counters can be also used for measurement of
A) Voltage B) Current
C) Phase relationships D) Frequency
The negative resistance characteristic is in
A) Zener diode B) Tunnel diode
C) PIN diode D) LED
Acoilhas X =1000Q. If both its inductance and frequency are doubled, its reactance
will becomes
A) 2000 B) 500 C) 250 D) 4000
s
