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 'VOCATIONAL TEACHER MAINTENANCE AND REPAIRS OF RADIO AND TELEVISION' And exam conducted in the year 2016. And Question paper code was '046/2016'. 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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Due to Early effect, for a transistor :
(A) Output resistance increases (B) Input resistance ಶೆ
(C) Input resistance decreases (D) Output resistance decreases
In a MOSFET, the drain current slightly Increases as the drain source voltage increases. The
phenomenon is known as : ⋅
(A) Hot electron effect (B) Channel length Modulation
(C) Base width modulation (D) Sub threshold conduction
A MOSFET has a channel length 1m. What value of Vos will cause the electrons to reach
saturation velocity : :
(A) 1V @) 5V
(0) 109 0) 7۷
In the devices given below, maximum switching speed is available with :
(A) SCR (B) POWER MOSFET
(© IGBT ൩) DIAC
The voltage gain for a differential amplifier, with the following specification A= 100,
೫371000 ೧, Ro= 100 Q, Rs=10K © and RL= 1,000 0:
(A) 19.15 dB (छ) 38.3 88
൩) 76.68 88 71.45 رم
The intrinsic voltage gain, mw, of the BUT is :
4) कन +न 0). &~ "0.4
© مم *0-( (0) 8.*(ಗ/(1-7)
If ground is applied to the (+) terminal of an inverting op-amp, the (~) terminal will:
(ಗೆ) not need an input resistor (0) 06 virtual ground
(C) have high reverse current (D) not invert the signal
Terminal current gain for the common emitter amplifier is :
(A) ratio of Collector current to Base current
(B) ratio of current delivered to load to current supplied to base
(€) £ of the transistor
(D) all the above
046/2016 4 A
