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.
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098/23
Consider the following systems
10
System 1: ——
ystel +1
10
8۷8160 2: ہے
Which of the following statement is true ?
A) System 1 is faster than System 2
B) System 1 is slower than System 2
C) System 1 and System 2 have same speed
)
D) Cannot be determined from the above data
An SCR is rates 450 V, 75 A. How many SCRs are required to be cascaded to form
acircuit of 9 kV, 75 A rating ? Let the derating factor is 20%
A) 20 B) 21 C) 25 D) 30
An half controlled single phase bridge rectifier in continuous load current mode is
supplying an RL load operating at firing angle a. Fraction of cycle for which the free
wheeling diode conduct is
A) 0.5 8) (1-a)/n
C)a ட) ௦/௩
A step-up chopper has an input voltage of 100 V and an output voltage of 250 V.
The ON time of the chopper is 75 us. Time period of the chopper in us is
A) 125 B) 75
C) 105 D) 108
A three phase full bridge voltage source inverter delivers power to a star connected
resistive load of 10 Q/phase from a 450 V DC source. RMS value of load current per
phase under 180° conduction mode will be
A) 18.97A B) 21.20A C) 11.35 A D) 19.72A
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