Kerala PSC Previous Years Question Paper & Answer
Page:4
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name ' Maintenance Engineer (Electronics)' And exam conducted in the year 2023. And Question paper code was '083/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
A:- Ves > Vr
Bi-Ves
Ci-Ves > 2 Ve
D:-2V6s < Vr
Correct Answer:- Option-A
Question16:-The effect of the channel length modulation in a MOSFET operating in
saturation region causes
A:-Decrease in transconductance
B:-Decrease in input impedance
C:-Decrease in output impedance
D:-Decrease in GATE source capacitance
Correct Answer:- Option-C
Question17:-What is the unity gain bandwidth of an n-channel MOSFET with
following parameters with a bias of Ves=sv?
K, = 0.25 ۵۸۷۰
Vin = 1V
A=0
Coa =0.05pF
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A:-929 MHz
B:-926 MHz
C:-919 MHz
D:-909 MHz
Correct Answer:- Option-D
Question18:-Find the cutoff frequency /. for an operational amplifier having specific
signal bandwidth of 2MHz and closed loop gain 4c. = 250 ۸۰
A:-16 Hz
B:-4 Hz
C:-8 Hz
D:-1 Hz
Correct Answer:- Option-B
Question19:-What is the maximum closed loop voltage gain, when the input signal
varies by 0.1 volt in 10 microseconds with a slew rate SR = 3 V/ كن 7
A:-100
B:-150
C:-300
D:-500
Correct Answer:- Option-C