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 AND PRODUCTION TECHNOLOGY TECHNICAL EDUCATION EKM DIST' And exam conducted in the year 2014. And Question paper code was '190/2014'. 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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In an amplifier the coupling capacitor are used :
(ಗಿ) to Control the output
(B) to limit the Bandwidth
(൫ to reduce output voltage
(0) to prevent DC mixing with input output
The Light Emitting Diede (LED) :
(A) is usually made of silicon
(18) uses a reverse Bias junction
() gives a light output which increases with an increase in temperature
(D) depends on the recombination of holes and electrons
Which of the diode is used as photo detector?
(ல Opto coupler © Light Emitting Diode
(C) Photo Diode (D) Photo conduction Cell
The value of capacitance in varactor is maximum when :
(A) Space _chm-ge region is narrow
(18) Space charge region is wide
(0 An inductor is connected parallel to the varactor
(D) None of the above
In Which diode conduction is only due to electrons and not holes :
(A) Varactor (18) Photo Diode
(C) Zener (D) Schottky
RC filters are not used so much beeause :
(ക It has high DC voltage drop (B) DC output voltage is high
10 Output has very leas ripple factor (0) Output has high ripple factor
Which element has ability 1o قاعم as open circuits for DC and short circuit for ac when
connected in shunt :
(ക) Resistor (B) Inductor
(८) Capacitor (10) None of the above
The capacitor filter is suitable for :
(வ Large Load currents (B) Small Load Currents
(¢) Medium Load currents (D) All of the above
11 190/2014
[P.T.0.]
