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 'INSTRUCTOR GR I ELECTRONICS ENGINEERING COLLEGES TECHNICAL EDUCATION' And exam conducted in the year 2014. And Question paper code was '155/2014'. 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.
155/2014
1:
In a zener diode :
(ಗೆ) only the P region is heavily doped
(B) only the N region is heavily doped
(3) உணர and N regions are lightly doped
(12) both P and N regions are heavily doped
Which of the following transistor configuration offers highest input impedance ?
(ಗಿ) ೦8 (8) ೮೫
(ಲ) ಓಟ (D) Cascade configuration
A half wave rectified sinusoidal waveform has a peak voltage of 10 V. Its average value of
the fundamental component is :
20 10 5
1“ 0ھ) 60 ۷ ത
Barkhaussen criteria for oscillation is applicable to :
(A) sinusoidal escillators (B) astable multivibrators
(C) relaxation oscillators (D) all oscillators
Which among the following is not an advantage of FET over शा?
(ക) its current controlled behaviour (8) high input impedance
(9 low noise (2) high gain bandwidth product
RC coupled amplifier is used as a :
(५) power amplifier (B) current amplifier
(3) buffer amplifier (D) vollage amplifier
If a specific application of an amplifier demands better immunily to noise also which of the
following amplifier can be chosen 7
(ಗಿ) RC coupled amplifier (18) Differential amplifier
(0) Transresistance amplifier (D) Transconductance amplifier
The phase shift introduced by the wien bridge in a wien bridge oscillator at the frequency of
oscillation is :
(A) 180° (7) 360° (೧) 0" യു 90“
3
1.0.)
