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 'Workshop Instructor/ Instructor Gr. II/ Demonstrator in Electronics Engineering' And exam conducted in the year 2023. And Question paper code was '068/2023'. 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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068/23
Width of the conductions channel in MOSFET is
A) Large at source side and decreasing at drain end
B)
C) Almost same from source to drain
D)
Large at drain side and decreasing at source end
More current will form drain to source hence width at drain end is large and source
end is less
Pinch off voltage of JFET is
A) The source to drain voltage at which the drain current start to saturate
B) The source to drain voltage at which the source current start to saturate
C) The drain to source voltage at which the drain current start to saturate
D) The drain to source voltage at which the source current start to increase
When latch up occurs in 1೦87
A) Ic is no longer controllable B) Ig is no longer controllable
C) I, is no longer controllable D) Both I, and Ig are not controllable
Secondary breakdown occur in BJT due to
A) Negative temperature coefficient of resistance
B) Positive tap coefficient of resistance
C) Heavily dropped emitter region
)
D) Heavily dropped collector region
Which one of the following device is not a switched mode DC power supply ?
A) Resistant converter B) Push pull converter
C) Full bridge converter D) Fly back forward converter
SMPSs are widely used than linear power supply due to
A) Size and efficiency B) Efficiency and regulations
C) Noise and cost D) Regulations and noise
An AC LVDT has input and output.
A) AC, DC B) AC, AC
©) DC, DC D) DC, AC