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 'Lecturer in Electronics and Instrumentation (Polytechnics)' And exam conducted in the year 2023. And Question paper code was '121/2023/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.
Correct Answer:- Option-B
Question59:-A temperature process has the operating range 100 to 500K with the
setpoint as 300K. Find the percentage of error span when the temperature is 450K
A:--36.5
B:--37.5
C:--21.5
D:--25.5
Correct Answer:- Option-B
Question60:-Proportional controller introduces and it can be minimized
by reducing
A:-Residual error, proportional band
B:-Oscillations, Proportional band
C:-Damping, Setpoint
D:-Inverse response, proportional gain
Correct Answer:- Option-A
Question61:-A controller outputs 4-20mA current signal to the final control element.
Find the current when the controller has a proportional band of 25%
A:-8 MA
B:-10 mA
C:-12 mA
D:-16 mA
Correct Answer:- Option-A
Question62:-The measurement range of an integral control system spans from 0.6
to 1.6 V, and it generates an output voltage of 0 to 9.0 V. compute the gain G1 of
the op amp to implement the integral controller of gain KI = 6% (%-min)
دوم :لم
دوومو-: 8
C:-o.01s-1
2-95-1
Correct Answer:-Question Cancelled
Question63:-In a penumatic control valve, a force of 320 N is applied to open a
valve. Find the diaphragm area, if a control gauge pressure of 50Kpa must provide
this force
توۃ-وورہ 5ر-ن۵
B :-16.2x10-9m2
ഷി
تورة-ووروو-: 0ا
Correct Answer:- Option-C