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 'LABORATORY TECHNICAL ASSISTANT MRRTV VHSE' And exam conducted in the year 2014. And Question paper code was '218/2014'. 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.
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When checking an NPN transistor using ohmmeter. the transistor junction is forward
biased
(4) + probe at collector. — probe at base (18) — probe at emitter. + probe at collector
(C) - probe at base, + probe at collector (0) 7 probe at base. — probe at emitter
A two stage RC coupled amplifier have stage gains of 30 and 40. The overall gain is
۵ 0 (B) 1200
0 0 (0) 0
The astable multivibrator
(A) have two stable states (B) have a stable state
(0) is free running (D) flip flop circuit
The time period of output waveform of an astable multivibrator is
(A) T=069RC (B) T=138R/C,+138R,Cy
(೧ T=RC (D) T=138RC
The noise generated by random variations in the arrival of electrons or holes at the
clectrodes of an Amplifying device is
{A) Thermal agitation noise (8) Shot noise
)© Transit time noise (D) Resistance noise
Secondary cell has the characteristic of
(A) Not rechargeable (B) Drycell
(0) Rechargeability (0) Both (A)and (B)
In a bridge rectifier the PIV across a non-conducting diode equals
(A) twice the peak value of ac input
(B) four times the peak value of ac input
(८) half the peak value of ac input
(D) the peak value of ac input
The number of PN junctions in a JFET is
(A) 1 (8) 2
3 218/2014
