Kerala PSC Previous Years Question Paper & Answer
Page:12
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Electrical Engineer' And exam conducted in the year 2023. And Question paper code was '70/2023/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.
Question59:-A TRIAC is a
A:-unidirectional current, bi directional voltage blocking device
B:-bi directional current, unidirectional voltage blocking device
C:-bi directional current, bidirectional voltage blocking device
D:-unidirectional current, unidirectional voltage blocking device
Correct Answer:- Option-C
Question60:-For UJT to be used as a relaxation oscillator,
A:-its operating point is designed to be in the positive resistance/saturation
region
B:-its cut-off point chosen to be in the cut-off region
C:-lts negative resistance region is avoided while choosing the operating point
D:-It is deliberately designed to operate in the negative resistance region
Correct Answer:- Option-D
Question61:-Consider a system with the following transfer function
+4)
வம
The value of the damping ratio will be 0.5, when the value of k is:
A:-0.5
B:-0.25
C:-8
D:-4
Correct Answer:- Option-B
Question62:-The impulse response of an Rh circuit is
A:-parabolic function
B:-step function
C:-rising exponential function
D:-decaying exponential function
Correct Answer:-Question Cancelled
Question63:-
The feedback system shown in figure is stable for all positive values of K
A:-T = 0
B:-T <0
6 <1
0:- < -5