Kerala PSC Previous Years Question Paper & Answer
Page:21
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Assistant Professor Electronics and Communication Engineering' And exam conducted in the year 2023. And Question paper code was '051/2023'. 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.
94.
95.
051/23
The following figure shows various DC to DC converter configurations. Starting from
top to bottom, the configurations are,
Boost, Buck, Buck-boost and Cuk
Boost, Buck, Cuk and Buck-boost
Buck, Boost, Buck-boost and Cuk
Buck, Boost, Cuk and Buck-boost
A)
B)
0)
0)
In a DC motor control circuit as shown in figure, by using PWM and /or logic signals
at the input points,
٦٦
Input
6
Input
A) The speed and direction of rotation of the motor can be controlled
B) The speed of the motor can be controlled but not direction of rotation of the
motor
C) The direction of rotation of the motor can be controlled but not the speed of
rotation
D) None of the above
-21-