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 'Deputy Engineer (Electrical), Assistant Engineer (Electrical) - Kerala Co-operative Milk Marketing Federation Ltd, KSEB' And exam conducted in the year 2023. And Question paper code was '098/2023'. 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.
098/23
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In a thyristor
A) Holding current is more than Latching current
B) Holding current is less than Latching current
C) Holding current is equal to Latching current
)
)
)
D) Holding current is zero
An Op-Amp has an output signal of 2 V for an input of 50 mV. The voltage gain in dB is
A) 12 dB B) 32 dB ७) 19 58 0) 25 8
In response to a square wave input, the output of an Op-Amp changed from
-3 \/10 + 3 V over atime interval of 0.25 us. The slew rate in V/us of the Op-Amp will be
A) 19 B) 20 C) 22 D) 24
In single pulse modulation of PWM inverter, 3'd harmonics can be eliminated if the
pulse width is
A) 30°
B) 60°
C) 90°
D) 120°
A step down chopper is operated in continuous conduction mode in steady state with
a constant duty ratio ‘D’. The relation between output voltage V., and input voltage
۷| Me. =
Vin
A) D
8) 1-0
C) 1/(1—D)
0) 0/(1- 0)